diff options
Diffstat (limited to 'target/linux/ifxmips/files-2.6.33')
23 files changed, 4975 insertions, 7 deletions
diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/Kconfig b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/Kconfig index 1660f1486a..f8a198d479 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/Kconfig +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/Kconfig @@ -10,6 +10,18 @@ choice bool "Danube/Twinpass" select SOC_DANUBE + config IFXMIPS_ASE + bool "Amazon-SE" + select SOC_ASE + + config IFXMIPS_AR9 + bool "AR9" + select SOC_AR9 + + config IFXMIPS_VR9 + bool "VR9" + select SOC_VR9 + endchoice source "arch/mips/ifxmips/danube/Kconfig" @@ -32,6 +44,60 @@ config SOC_DANUBE select SWAP_IO_SPACE select MIPS_MACHINE +config SOC_ASE + bool + select DMA_NONCOHERENT + select IRQ_CPU + select CEVT_R4K + select CSRC_R4K + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select HAVE_STD_PC_SERIAL_PORT + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_MULTITHREADING + select SYS_HAS_EARLY_PRINTK + select HW_HAS_PCI + select ARCH_REQUIRE_GPIOLIB + select SWAP_IO_SPACE + select MIPS_MACHINE + +config SOC_AR9 + bool + select DMA_NONCOHERENT + select IRQ_CPU + select CEVT_R4K + select CSRC_R4K + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select HAVE_STD_PC_SERIAL_PORT + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_MULTITHREADING + select SYS_HAS_EARLY_PRINTK + select HW_HAS_PCI + select ARCH_REQUIRE_GPIOLIB + select SWAP_IO_SPACE + select MIPS_MACHINE + +config SOC_VR9 + bool + select DMA_NONCOHERENT + select IRQ_CPU + select CEVT_R4K + select CSRC_R4K + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select HAVE_STD_PC_SERIAL_PORT + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_MULTITHREADING + select SYS_HAS_EARLY_PRINTK + select HW_HAS_PCI + select ARCH_REQUIRE_GPIOLIB + select SWAP_IO_SPACE + select MIPS_MACHINE + if EARLY_PRINTK menu "Infineon SoC settings" diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/common/prom.c b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/common/prom.c index 98de8fb5cc..8eb12c78bf 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/common/prom.c +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/common/prom.c @@ -4,6 +4,7 @@ #include <linux/etherdevice.h> #include <asm/bootinfo.h> +#include <machine.h> #include <ifxmips.h> #include <ifxmips_prom.h> @@ -65,8 +66,12 @@ out: } __setup("ethaddr", ifxmips_set_ethaddr); -void __init -prom_init(void) +static void __init prom_detect_machtype(void) +{ + mips_machtype = IFXMIPS_MACH_EASY50712; +} + +static void __init prom_init_cmdline(void) { int argc = fw_arg0; char **argv = (char **) fw_arg1; @@ -129,3 +134,10 @@ prom_init(void) add_memory_region(0x00000000, memsize, BOOT_MEM_RAM); } + +void __init +prom_init(void) +{ + prom_detect_machtype(); + prom_init_cmdline(); +} diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/Makefile b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/Makefile index 328f082af4..008aa2b52d 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/Makefile +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/Makefile @@ -1,3 +1,5 @@ obj-y := dma-core.o irq.o ebu.o setup.o devices.o cgu.o obj-$(CONFIG_IFXMIPS_ARCAYDIAN_BRNBOOT) += arcaydian.o obj-$(CONFIG_DANUBE_MACH_ARV452) += mach-arv452.o +obj-$(CONFIG_DANUBE_MACH_EASY50712) += mach-easy50712.o +obj-$(CONFIG_DANUBE_MACH_EASY4010) += mach-easy4010.o diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/devices.c b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/devices.c index 0c6a3e004d..dbcac556df 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/devices.c +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/devices.c @@ -75,7 +75,7 @@ static struct resource danube_ethernet_resources = static struct platform_device danube_ethernet = { - .name = "danube_ethernet", + .name = "ifxmips_mii0", .resource = &danube_ethernet_resources, .num_resources = 1, .dev = { diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-arv452.c b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-arv452.c index 1b76c73d7b..2e406c90ae 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-arv452.c +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-arv452.c @@ -167,4 +167,4 @@ arv452_init(void) MIPS_MACHINE(IFXMIPS_MACH_ARV452, "ARV452", "Airties WAV-281, Arcor A800", - arv452_init); + arv452_init); diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy4010.c b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy4010.c new file mode 100644 index 0000000000..3fe8f1fade --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy4010.c @@ -0,0 +1,79 @@ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/gpio.h> +#include <linux/gpio_buttons.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/input.h> + +#include <machine.h> +#include <ifxmips_prom.h> + +#include "devices.h" + +extern unsigned char ifxmips_ethaddr[6]; + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition easy4010_partitions[] = +{ + { + .name = "uboot", + .offset = 0x0, + .size = 0x40000, + }, + { + .name = "uboot_env", + .offset = 0x40000, + .size = 0x10000, + }, + { + .name = "kernel", + .offset = 0x0, + .size = 0x0, + }, + { + .name = "rootfs", + .offset = 0x0, + .size = 0x0, + } +}; +#endif + +static struct physmap_flash_data easy4010_flash_data = { +#ifdef CONFIG_MTD_PARTITIONS + .nr_parts = ARRAY_SIZE(easy4010_partitions), + .parts = easy4010_partitions, +#endif +}; + +static struct gpio_led easy4010_leds[] = { + { .name = "ifx:green:test0", .gpio = 0,}, + { .name = "ifx:green:test1", .gpio = 1,}, + { .name = "ifx:green:test2", .gpio = 2,}, + { .name = "ifx:green:test3", .gpio = 3,}, +}; + +static void __init +easy4010_init(void) +{ + ifxmips_register_gpio(); + + ifxmips_register_gpio_dev(); + + ifxmips_register_mtd(&easy4010_flash_data); + + ifxmips_register_leds(easy4010_leds, ARRAY_SIZE(easy4010_leds)); + + ifxmips_register_wdt(); + + danube_register_ethernet(ifxmips_ethaddr); + + danube_register_usb(); +} + +MIPS_MACHINE(IFXMIPS_MACH_EASY4010, + "EASY4010", + "Lantiq Twinpass Eval Board", + easy4010_init); diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy50712.c b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy50712.c new file mode 100644 index 0000000000..9a38377a92 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/ifxmips/danube/mach-easy50712.c @@ -0,0 +1,80 @@ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/gpio.h> +#include <linux/gpio_buttons.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/input.h> + +#include <machine.h> +#include <ifxmips_prom.h> + +#include "devices.h" + +extern unsigned char ifxmips_ethaddr[6]; + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition easy50712_partitions[] = +{ + { + .name = "uboot", + .offset = 0x0, + .size = 0x40000, + }, + { + .name = "uboot_env", + .offset = 0x40000, + .size = 0x10000, + }, + { + .name = "kernel", + .offset = 0x0, + .size = 0x0, + }, + { + .name = "rootfs", + .offset = 0x0, + .size = 0x0, + } +}; +#endif + +static struct physmap_flash_data easy50712_flash_data = { +#ifdef CONFIG_MTD_PARTITIONS + .nr_parts = ARRAY_SIZE(easy50712_partitions), + .parts = easy50712_partitions, +#endif +}; + +static struct gpio_led easy50712_leds[] = { + { .name = "ifx:green:test0", .gpio = 0,}, + { .name = "ifx:green:test1", .gpio = 1,}, + { .name = "ifx:green:test2", .gpio = 2,}, + { .name = "ifx:green:test3", .gpio = 3,}, +}; + +static void __init +easy50712_init(void) +{ + ifxmips_register_gpio(); + + //printk("ifxmips_register_gpio_dev\n"); + //ifxmips_register_gpio_dev(); + + ifxmips_register_mtd(&easy50712_flash_data); + + ifxmips_register_leds(easy50712_leds, ARRAY_SIZE(easy50712_leds)); + + ifxmips_register_wdt(); + + danube_register_ethernet(ifxmips_ethaddr); + + danube_register_usb(); +} + +MIPS_MACHINE(IFXMIPS_MACH_EASY50712, + "EASY50712", + "Lantiq Eval Board", + easy50712_init); diff --git a/target/linux/ifxmips/files-2.6.33/arch/mips/include/asm/mach-ifxmips/machine.h b/target/linux/ifxmips/files-2.6.33/arch/mips/include/asm/mach-ifxmips/machine.h index 5b7786a8b5..f014de0181 100644 --- a/target/linux/ifxmips/files-2.6.33/arch/mips/include/asm/mach-ifxmips/machine.h +++ b/target/linux/ifxmips/files-2.6.33/arch/mips/include/asm/mach-ifxmips/machine.h @@ -1,11 +1,21 @@ #include <asm/mips_machine.h> -enum ramips_mach_type { +enum ifxmips_mach_type { IFXMIPS_MACH_GENERIC, - /* Danube based machines */ - IFXMIPS_MACH_EASY50712, /* danube evalkit */ + /* Danube/Twinpass based machines */ + IFXMIPS_MACH_EASY50712, /* Danube evalkit */ + IFXMIPS_MACH_EASY4010, /* Twinpass evalkit */ IFXMIPS_MACH_ARV4519, /* Airties WAV-221 */ IFXMIPS_MACH_ARV452, /* Airties WAV-281, Arcor EasyboxA800 */ + + /* ASE based machines */ + IFXMIPS_MACH_EASY50601, /* ASE wave board */ + + /* AR9 based machines */ + IFXMIPS_MACH_EASY50822, /* AR9 eval board */ + + /* VR9 based machines */ + IFXMIPS_MACH_EASY80920, /* VRX200 eval board */ }; diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/Makefile b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/Makefile new file mode 100755 index 0000000000..f8789d6e9b --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/Makefile @@ -0,0 +1,9 @@ +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS) += ifxmips_deu.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS) += ifxmips_deu_danube.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_DES) += ifxmips_des.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_AES) += ifxmips_aes.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_ARC4) += ifxmips_arc4.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1) += ifxmips_sha1.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1_HMAC) += ifxmips_sha1_hmac.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_MD5) += ifxmips_mda5.o +obj-$(CONFIG_CRYPTO_DEV_IFXMIPS_MDA5_HMAC) += ifxmips_mda5_hmac.o diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_aes.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_aes.c new file mode 100755 index 0000000000..aa7d69905c --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_aes.c @@ -0,0 +1,1020 @@ +/* + * 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_aes.c + \ingroup IFX_DEU + \brief AES Encryption Driver main file +*/ + +/*! + \defgroup IFX_AES_FUNCTIONS IFX_AES_FUNCTIONS + \ingroup IFX_DEU + \brief IFX AES driver Functions +*/ + + +/* Project Header Files */ +#include <linux/version.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/crypto.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <asm/byteorder.h> +#include <crypto/algapi.h> +#include "ifxmips_deu.h" + +/* DMA related header and variables */ +#ifdef CONFIG_CRYPTO_DEV_DMA +#include "ifxmips_deu_dma.h" +#include <asm/ifx/irq.h> +#include <asm/ifx/ifx_dma_core.h> +extern _ifx_deu_device ifx_deu[1]; +extern u32 *aes_buff_in; +extern u32 *aes_buff_out; +#ifndef CONFIG_CRYPTO_DEV_POLL_DMA +#define CONFIG_CRYPTO_DEV_POLL_DMA +#endif +#endif /* CONFIG_CRYPTO_DEV_DMA */ + +spinlock_t aes_lock; +#define CRTCL_SECT_INIT spin_lock_init(&aes_lock) +#define CRTCL_SECT_START spin_lock_irqsave(&aes_lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&aes_lock, flag) + +/* Definition of constants */ +#define AES_START IFX_AES_CON +#define AES_MIN_KEY_SIZE 16 +#define AES_MAX_KEY_SIZE 32 +#define AES_BLOCK_SIZE 16 +#define CTR_RFC3686_NONCE_SIZE 4 +#define CTR_RFC3686_IV_SIZE 8 +#define CTR_RFC3686_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE) + +/* Function decleration */ +int aes_chip_init(void); +u32 endian_swap(u32 input); +u32 input_swap(u32 input); +u32* memory_alignment(const u8 *arg, u32 *buff_alloc, int in_out, int nbytes); +void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes); +void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes); +int aes_memory_allocate(int value); +int des_memory_allocate(int value); +void memory_release(u32 *addr); + +#ifndef CONFIG_CRYPTO_DEV_DMA +extern void ifx_deu_aes (void *ctx_arg, uint8_t *out_arg, const uint8_t *in_arg, + uint8_t *iv_arg, size_t nbytes, int encdec, int mode); +#else +extern void ifx_deu_aes_core (void *ctx_arg, uint8_t *out_arg, const uint8_t *in_arg, + uint8_t *iv_arg, size_t nbytes, int encdec, int mode); +#endif +/* End of function decleration */ + +struct aes_ctx { + int key_length; + u32 buf[AES_MAX_KEY_SIZE]; + u8 nonce[CTR_RFC3686_NONCE_SIZE]; +}; + + +extern int disable_deudma; + + +/*! \fn int aes_set_key (struct crypto_tfm *tfm, const uint8_t *in_key, unsigned int key_len) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets the AES keys + * \param tfm linux crypto algo transform + * \param in_key input key + * \param key_len key lengths of 16, 24 and 32 bytes supported + * \return -EINVAL - bad key length, 0 - SUCCESS +*/ +int aes_set_key (struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) +{ + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; + + DPRINTF(0, "ctx @%p, key_len %d\n", ctx, key_len); + + if (key_len != 16 && key_len != 24 && key_len != 32) { + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; + } + + ctx->key_length = key_len; + memcpy ((u8 *) (ctx->buf), in_key, key_len); + + return 0; +} + + +#ifndef CONFIG_CRYPTO_DEV_DMA +/*! \fn void ifx_deu_aes (void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, size_t nbytes, int encdec, int mode) + * \ingroup IFX_AES_FUNCTIONS + * \brief main interface to AES hardware + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc, ctr + * +*/ +void ifx_deu_aes (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, size_t nbytes, int encdec, int mode) +#else + +/*! \fn void ifx_deu_aes_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, size_t nbytes, int encdec, int mode) + * \ingroup IFX_AES_FUNCTIONS + * \brief main interface to AES hardware + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc, ctr + * +*/ +void ifx_deu_aes_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, size_t nbytes, int encdec, int mode) +#endif + +{ + /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ + volatile struct aes_t *aes = (volatile struct aes_t *) AES_START; + struct aes_ctx *ctx = (struct aes_ctx *)ctx_arg; + u32 *in_key = ctx->buf; + ulong flag; + /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ + int key_len = ctx->key_length; + +#ifndef CONFIG_CRYPTO_DEV_DMA + int i = 0; + int byte_cnt = nbytes; + +#else + volatile struct deu_dma_t *dma = (struct deu_dma_t *) IFX_DEU_DMA_CON; + struct dma_device_info *dma_device = ifx_deu[0].dma_device; + //deu_drv_priv_t *deu_priv = (deu_drv_priv_t *)dma_device->priv; + int wlen = 0; + u32 *outcopy = NULL; + u32 *dword_mem_aligned_in = NULL; + +#ifdef CONFIG_CRYPTO_DEV_POLL_DMA + u32 timeout = 0; + u32 *out_dma = NULL; +#endif + +#endif + + DPRINTF(0, "ctx @%p, mode %d, encdec %d\n", ctx, mode, encdec); + + CRTCL_SECT_START; + + /* 128, 192 or 256 bit key length */ + aes->controlr.K = key_len / 8 - 2; + if (key_len == 128 / 8) { + aes->K3R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 0)); + aes->K2R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 1)); + aes->K1R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 2)); + aes->K0R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 3)); + } + else if (key_len == 192 / 8) { + aes->K5R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 0)); + aes->K4R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 1)); + aes->K3R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 2)); + aes->K2R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 3)); + aes->K1R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 4)); + aes->K0R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 5)); + } + else if (key_len == 256 / 8) { + aes->K7R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 0)); + aes->K6R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 1)); + aes->K5R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 2)); + aes->K4R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 3)); + aes->K3R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 4)); + aes->K2R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 5)); + aes->K1R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 6)); + aes->K0R = DEU_ENDIAN_SWAP(*((u32 *) in_key + 7)); + } + else { + printk (KERN_ERR "[%s %s %d]: Invalid key_len : %d\n", __FILE__, __func__, __LINE__, key_len); + CRTCL_SECT_END; + return;// -EINVAL; + } + + /* let HW pre-process DEcryption key in any case (even if + ENcryption is used). Key Valid (KV) bit is then only + checked in decryption routine! */ + aes->controlr.PNK = 1; + +#ifdef CONFIG_CRYPTO_DEV_DMA + while (aes->controlr.BUS) { + // this will not take long + } + AES_DMA_MISC_CONFIG(); +#endif + + aes->controlr.E_D = !encdec; /* encryption */ + aes->controlr.O = mode; /* 0 ECB 1 CBC 2 OFB 3 CFB 4 CTR */ + aes->controlr.SM = 1; /* start after writing input register */ + aes->controlr.DAU = 0; /* Disable Automatic Update of init vector */ + aes->controlr.ARS = 1; /* Autostart Select - write to IHR */ + + //aes->controlr.F = 128; //default; only for CFB and OFB modes; change only for customer-specific apps + if (mode > 0) { + aes->IV3R = DEU_ENDIAN_SWAP(*(u32 *) iv_arg); + aes->IV2R = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 1)); + aes->IV1R = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 2)); + aes->IV0R = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 3)); + }; + +#ifndef CONFIG_CRYPTO_DEV_DMA + i = 0; + while (byte_cnt >= 16) { + + aes->ID3R = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + (i * 4) + 0)); + aes->ID2R = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + (i * 4) + 1)); + aes->ID1R = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + (i * 4) + 2)); + aes->ID0R = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + (i * 4) + 3)); /* start crypto */ + + while (aes->controlr.BUS) { + // this will not take long + } + + *((volatile u32 *) out_arg + (i * 4) + 0) = aes->OD3R; + *((volatile u32 *) out_arg + (i * 4) + 1) = aes->OD2R; + *((volatile u32 *) out_arg + (i * 4) + 2) = aes->OD1R; + *((volatile u32 *) out_arg + (i * 4) + 3) = aes->OD0R; + + i++; + byte_cnt -= 16; + } + +#else // dma + + /* Prepare Rx buf length used in dma psuedo interrupt */ + //deu_priv->deu_rx_buf = out_arg; + //deu_priv->deu_rx_len = nbytes; + + /* memory alignment issue */ + dword_mem_aligned_in = (u32 *) DEU_DWORD_REORDERING(in_arg, aes_buff_in, BUFFER_IN, nbytes); + + dma->controlr.ALGO = 1; //AES + dma->controlr.BS = 0; + aes->controlr.DAU = 0; + dma->controlr.EN = 1; + + while (aes->controlr.BUS) { + // wait for AES to be ready + }; + + wlen = dma_device_write (dma_device, (u8 *)dword_mem_aligned_in, nbytes, NULL); + if (wlen != nbytes) { + dma->controlr.EN = 0; + CRTCL_SECT_END; + printk (KERN_ERR "[%s %s %d]: dma_device_write fail!\n", __FILE__, __func__, __LINE__); + return; // -EINVAL; + } + + WAIT_AES_DMA_READY(); + +#ifdef CONFIG_CRYPTO_DEV_POLL_DMA + + outcopy = (u32 *) DEU_DWORD_REORDERING(out_arg, aes_buff_out, BUFFER_OUT, nbytes); + + // polling DMA rx channel + while ((dma_device_read (dma_device, (u8 **) &out_dma, NULL)) == 0) { + timeout++; + + if (timeout >= 333000) { + dma->controlr.EN = 0; + CRTCL_SECT_END; + printk (KERN_ERR "[%s %s %d]: timeout!!\n", __FILE__, __func__, __LINE__); + return; // -EINVAL; + } + } + + WAIT_AES_DMA_READY(); + + AES_MEMORY_COPY(outcopy, out_dma, out_arg, nbytes); + +#else // not working at the moment.. + CRTCL_SECT_END; + + /* Sleep and wait for Rx finished */ + DEU_WAIT_EVENT(deu_priv->deu_thread_wait, DEU_EVENT, deu_priv->deu_event_flags); + + CRTCL_SECT_START; +#endif + +#endif // dma + + //tc.chen : copy iv_arg back + if (mode > 0) { + *((u32 *) iv_arg) = DEU_ENDIAN_SWAP(*((u32 *) iv_arg)); + *((u32 *) iv_arg + 1) = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 1)); + *((u32 *) iv_arg + 2) = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 2)); + *((u32 *) iv_arg + 3) = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 3)); + } + + CRTCL_SECT_END; +} + +/*! + * \fn int ctr_rfc3686_aes_set_key (struct crypto_tfm *tfm, const uint8_t *in_key, unsigned int key_len) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets RFC3686 key + * \param tfm linux crypto algo transform + * \param in_key input key + * \param key_len key lengths of 20, 28 and 36 bytes supported; last 4 bytes is nonce + * \return 0 - SUCCESS + * -EINVAL - bad key length +*/ +int ctr_rfc3686_aes_set_key (struct crypto_tfm *tfm, const uint8_t *in_key, unsigned int key_len) +{ + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; + + printk("ctr_rfc3686_aes_set_key in %s\n", __FILE__); + + memcpy(ctx->nonce, in_key + (key_len - CTR_RFC3686_NONCE_SIZE), + CTR_RFC3686_NONCE_SIZE); + + key_len -= CTR_RFC3686_NONCE_SIZE; // remove 4 bytes of nonce + + if (key_len != 16 && key_len != 24 && key_len != 32) { + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; + } + + ctx->key_length = key_len; + + memcpy ((u8 *) (ctx->buf), in_key, key_len); + + return 0; +} + +/*! \fn void ifx_deu_aes (void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode) + * \ingroup IFX_AES_FUNCTIONS + * \brief main interface with deu hardware in DMA mode + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc, ctr +*/ + +#ifdef CONFIG_CRYPTO_DEV_DMA +void ifx_deu_aes (void *ctx_arg, u8 * out_arg, const u8 * in_arg, + u8 * iv_arg, u32 nbytes, int encdec, int mode) +{ + u32 remain = nbytes; + u32 inc; + + while (remain > 0) + { + if (remain >= DEU_MAX_PACKET_SIZE) + { + inc = DEU_MAX_PACKET_SIZE; + } + else + { + inc = remain; + } + + remain -= inc; + + ifx_deu_aes_core(ctx_arg, out_arg, in_arg, iv_arg, inc, encdec, mode); + + out_arg += inc; + in_arg += inc; + } + +} +#endif + +//definitions from linux/include/crypto.h: +//#define CRYPTO_TFM_MODE_ECB 0x00000001 +//#define CRYPTO_TFM_MODE_CBC 0x00000002 +//#define CRYPTO_TFM_MODE_CFB 0x00000004 +//#define CRYPTO_TFM_MODE_CTR 0x00000008 +//#define CRYPTO_TFM_MODE_OFB 0x00000010 // not even defined +//but hardware definition: 0 ECB 1 CBC 2 OFB 3 CFB 4 CTR + +/*! \fn void ifx_deu_aes_ecb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets AES hardware to ECB mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_aes_ecb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + ifx_deu_aes (ctx, dst, src, NULL, nbytes, encdec, 0); +} + +/*! \fn void ifx_deu_aes_cbc (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets AES hardware to CBC mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_aes_cbc (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + ifx_deu_aes (ctx, dst, src, iv, nbytes, encdec, 1); +} + +/*! \fn void ifx_deu_aes_ofb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets AES hardware to OFB mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_aes_ofb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + ifx_deu_aes (ctx, dst, src, iv, nbytes, encdec, 2); +} + +/*! \fn void ifx_deu_aes_cfb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets AES hardware to CFB mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_aes_cfb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + ifx_deu_aes (ctx, dst, src, iv, nbytes, encdec, 3); +} + +/*! \fn void ifx_deu_aes_ctr (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_AES_FUNCTIONS + * \brief sets AES hardware to CTR mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_aes_ctr (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + ifx_deu_aes (ctx, dst, src, iv, nbytes, encdec, 4); +} + +/*! \fn void aes_encrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) + * \ingroup IFX_AES_FUNCTIONS + * \brief encrypt AES_BLOCK_SIZE of data + * \param tfm linux crypto algo transform + * \param out output bytestream + * \param in input bytestream +*/ +void aes_encrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) +{ + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); + ifx_deu_aes (ctx, out, in, NULL, AES_BLOCK_SIZE, + CRYPTO_DIR_ENCRYPT, 0); + +} + +/*! \fn void aes_decrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) + * \ingroup IFX_AES_FUNCTIONS + * \brief decrypt AES_BLOCK_SIZE of data + * \param tfm linux crypto algo transform + * \param out output bytestream + * \param in input bytestream +*/ +void aes_decrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) +{ + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); + ifx_deu_aes (ctx, out, in, NULL, AES_BLOCK_SIZE, + CRYPTO_DIR_DECRYPT, 0); +} + +/* + * \brief AES function mappings +*/ +struct crypto_alg ifxdeu_aes_alg = { + .cra_name = "aes", + .cra_driver_name = "ifxdeu-aes", + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_aes_alg.cra_list), + .cra_u = { + .cipher = { + .cia_min_keysize = AES_MIN_KEY_SIZE, + .cia_max_keysize = AES_MAX_KEY_SIZE, + .cia_setkey = aes_set_key, + .cia_encrypt = aes_encrypt, + .cia_decrypt = aes_decrypt, + } + } +}; + +/*! \fn int ecb_aes_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief ECB AES encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ecb_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int ecb_aes_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief ECB AES decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ecb_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief AES function mappings +*/ +struct crypto_alg ifxdeu_ecb_aes_alg = { + .cra_name = "ecb(aes)", + .cra_driver_name = "ifxdeu-ecb(aes)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ecb_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = aes_set_key, + .encrypt = ecb_aes_encrypt, + .decrypt = ecb_aes_decrypt, + } + } +}; + + +/*! \fn int cbc_aes_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief CBC AES encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int cbc_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_cbc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int cbc_aes_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief CBC AES decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int cbc_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_cbc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief AES function mappings +*/ +struct crypto_alg ifxdeu_cbc_aes_alg = { + .cra_name = "cbc(aes)", + .cra_driver_name = "ifxdeu-cbc(aes)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_cbc_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = aes_set_key, + .encrypt = cbc_aes_encrypt, + .decrypt = cbc_aes_decrypt, + } + } +}; + + +/*! \fn int ctr_basic_aes_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief Counter mode AES encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ctr_basic_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int ctr_basic_aes_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief Counter mode AES decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ctr_basic_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief AES function mappings +*/ +struct crypto_alg ifxdeu_ctr_basic_aes_alg = { + .cra_name = "ctr(aes)", + .cra_driver_name = "ifxdeu-ctr(aes)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ctr_basic_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = aes_set_key, + .encrypt = ctr_basic_aes_encrypt, + .decrypt = ctr_basic_aes_decrypt, + } + } +}; + + +/*! \fn int ctr_rfc3686_aes_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief Counter mode AES (rfc3686) encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ctr_rfc3686_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + u8 rfc3686_iv[16]; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + /* set up counter block */ + memcpy(rfc3686_iv, ctx->nonce, CTR_RFC3686_NONCE_SIZE); + memcpy(rfc3686_iv + CTR_RFC3686_NONCE_SIZE, walk.iv, CTR_RFC3686_IV_SIZE); + + /* initialize counter portion of counter block */ + *(__be32 *)(rfc3686_iv + CTR_RFC3686_NONCE_SIZE + CTR_RFC3686_IV_SIZE) = + cpu_to_be32(1); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + rfc3686_iv, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int ctr_rfc3686_aes_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_AES_FUNCTIONS + * \brief Counter mode AES (rfc3686) decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ctr_rfc3686_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + u8 rfc3686_iv[16]; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + /* set up counter block */ + memcpy(rfc3686_iv, ctx->nonce, CTR_RFC3686_NONCE_SIZE); + memcpy(rfc3686_iv + CTR_RFC3686_NONCE_SIZE, walk.iv, CTR_RFC3686_IV_SIZE); + + /* initialize counter portion of counter block */ + *(__be32 *)(rfc3686_iv + CTR_RFC3686_NONCE_SIZE + CTR_RFC3686_IV_SIZE) = + cpu_to_be32(1); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % AES_BLOCK_SIZE); + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + rfc3686_iv, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief AES function mappings +*/ +struct crypto_alg ifxdeu_ctr_rfc3686_aes_alg = { + .cra_name = "rfc3686(ctr(aes))", + .cra_driver_name = "ifxdeu-ctr-rfc3686(aes)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ctr_rfc3686_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = CTR_RFC3686_MAX_KEY_SIZE, + .ivsize = CTR_RFC3686_IV_SIZE, + .setkey = ctr_rfc3686_aes_set_key, + .encrypt = ctr_rfc3686_aes_encrypt, + .decrypt = ctr_rfc3686_aes_decrypt, + } + } +}; + + +/*! \fn int __init ifxdeu_init_aes (void) + * \ingroup IFX_AES_FUNCTIONS + * \brief function to initialize AES driver + * \return ret +*/ +int __init ifxdeu_init_aes (void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_aes_alg))) + goto aes_err; + + if ((ret = crypto_register_alg(&ifxdeu_ecb_aes_alg))) + goto ecb_aes_err; + + if ((ret = crypto_register_alg(&ifxdeu_cbc_aes_alg))) + goto cbc_aes_err; + + if ((ret = crypto_register_alg(&ifxdeu_ctr_basic_aes_alg))) + goto ctr_basic_aes_err; + + if ((ret = crypto_register_alg(&ifxdeu_ctr_rfc3686_aes_alg))) + goto ctr_rfc3686_aes_err; + + aes_chip_init (); + + CRTCL_SECT_INIT; + +#ifdef CONFIG_CRYPTO_DEV_DMA + if (ALLOCATE_MEMORY(BUFFER_IN, AES_ALGO) < 0) { + printk(KERN_ERR "[%s %s %d]: malloc memory fail!\n", __FILE__, __func__, __LINE__); + goto ctr_rfc3686_aes_err; + } + if (ALLOCATE_MEMORY(BUFFER_OUT, AES_ALGO) < 0) { + printk(KERN_ERR "[%s %s %d]: malloc memory fail!\n", __FILE__, __func__, __LINE__); + goto ctr_rfc3686_aes_err; + } +#endif + + printk (KERN_NOTICE "IFX DEU AES initialized %s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +ctr_rfc3686_aes_err: + crypto_unregister_alg(&ifxdeu_ctr_rfc3686_aes_alg); + printk (KERN_ERR "IFX ctr_rfc3686_aes initialization failed!\n"); + return ret; +ctr_basic_aes_err: + crypto_unregister_alg(&ifxdeu_ctr_basic_aes_alg); + printk (KERN_ERR "IFX ctr_basic_aes initialization failed!\n"); + return ret; +cbc_aes_err: + crypto_unregister_alg(&ifxdeu_cbc_aes_alg); + printk (KERN_ERR "IFX cbc_aes initialization failed!\n"); + return ret; +ecb_aes_err: + crypto_unregister_alg(&ifxdeu_ecb_aes_alg); + printk (KERN_ERR "IFX aes initialization failed!\n"); + return ret; +aes_err: + printk(KERN_ERR "IFX DEU AES initialization failed!\n"); + return ret; +} + +/*! \fn void __exit ifxdeu_fini_aes (void) + * \ingroup IFX_AES_FUNCTIONS + * \brief unregister aes driver +*/ +void __exit ifxdeu_fini_aes (void) +{ + crypto_unregister_alg (&ifxdeu_aes_alg); + crypto_unregister_alg (&ifxdeu_ecb_aes_alg); + crypto_unregister_alg (&ifxdeu_cbc_aes_alg); + crypto_unregister_alg (&ifxdeu_ctr_basic_aes_alg); + crypto_unregister_alg (&ifxdeu_ctr_rfc3686_aes_alg); + +#ifdef CONFIG_CRYPTO_DEV_DMA + FREE_MEMORY(aes_buff_in); + FREE_MEMORY(aes_buff_out); +#endif + +} + diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.c new file mode 100755 index 0000000000..b33a19de95 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.c @@ -0,0 +1,388 @@ +/* + * 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_arc4.c + \ingroup IFX_DEU + \brief ARC4 encryption DEU driver file +*/ + +/*! + \defgroup IFX_ARC4_FUNCTIONS IFX_ARC4_FUNCTIONS + \ingroup IFX_DEU + \brief IFX deu driver functions +*/ + +/* Project header */ +#include <linux/version.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/crypto.h> +#include <crypto/algapi.h> +#include <linux/interrupt.h> +#include <asm/byteorder.h> +#include <linux/delay.h> +#include "ifxmips_deu.h" + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + +static spinlock_t lock; +#define CRTCL_SECT_INIT spin_lock_init(&lock) +#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag) + +/* Preprocessor declerations */ +#define ARC4_MIN_KEY_SIZE 1 +//#define ARC4_MAX_KEY_SIZE 256 +#define ARC4_MAX_KEY_SIZE 16 +#define ARC4_BLOCK_SIZE 1 +#define ARC4_START IFX_ARC4_CON + +/* + * \brief arc4 private structure +*/ +struct arc4_ctx { + int key_length; + u8 buf[120]; +}; + +extern int disable_deudma; + +/*! \fn static void _deu_arc4 (void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode) + \ingroup IFX_ARC4_FUNCTIONS + \brief main interface to AES hardware + \param ctx_arg crypto algo context + \param out_arg output bytestream + \param in_arg input bytestream + \param iv_arg initialization vector + \param nbytes length of bytestream + \param encdec 1 for encrypt; 0 for decrypt + \param mode operation mode such as ebc, cbc, ctr +*/ +static void _deu_arc4 (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode) +{ + volatile struct arc4_t *arc4 = (struct arc4_t *) ARC4_START; + int i = 0; + ulong flag; + +#if 1 // need to handle nbytes not multiple of 16 + volatile u32 tmp_array32[4]; + volatile u8 *tmp_ptr8; + int remaining_bytes, j; +#endif + + CRTCL_SECT_START; + + arc4->IDLEN = nbytes; + +#if 1 + while (i < nbytes) { + arc4->ID3R = *((u32 *) in_arg + (i>>2) + 0); + arc4->ID2R = *((u32 *) in_arg + (i>>2) + 1); + arc4->ID1R = *((u32 *) in_arg + (i>>2) + 2); + arc4->ID0R = *((u32 *) in_arg + (i>>2) + 3); + + arc4->controlr.GO = 1; + + while (arc4->controlr.BUS) { + // this will not take long + } + +#if 1 + // need to handle nbytes not multiple of 16 + tmp_array32[0] = arc4->OD3R; + tmp_array32[1] = arc4->OD2R; + tmp_array32[2] = arc4->OD1R; + tmp_array32[3] = arc4->OD0R; + + remaining_bytes = nbytes - i; + if (remaining_bytes > 16) + remaining_bytes = 16; + + tmp_ptr8 = (u8 *)&tmp_array32[0]; + for (j = 0; j < remaining_bytes; j++) + *out_arg++ = *tmp_ptr8++; +#else + *((u32 *) out_arg + (i>>2) + 0) = arc4->OD3R; + *((u32 *) out_arg + (i>>2) + 1) = arc4->OD2R; + *((u32 *) out_arg + (i>>2) + 2) = arc4->OD1R; + *((u32 *) out_arg + (i>>2) + 3) = arc4->OD0R; +#endif + + i += 16; + } +#else // dma + + +#endif // dma + + CRTCL_SECT_END; +} + +/*! \fn arc4_chip_init (void) + \ingroup IFX_ARC4_FUNCTIONS + \brief initialize arc4 hardware +*/ +static void arc4_chip_init (void) +{ + //do nothing +} + +/*! \fn static int arc4_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) + \ingroup IFX_ARC4_FUNCTIONS + \brief sets ARC4 key + \param tfm linux crypto algo transform + \param in_key input key + \param key_len key lengths less than or equal to 16 bytes supported +*/ +static int arc4_set_key(struct crypto_tfm *tfm, const u8 *inkey, + unsigned int key_len) +{ + //struct arc4_ctx *ctx = crypto_tfm_ctx(tfm); + volatile struct arc4_t *arc4 = (struct arc4_t *) ARC4_START; + + u32 *in_key = (u32 *)inkey; + + // must program all bits at one go?!!! +#if 1 +//#ifndef CONFIG_CRYPTO_DEV_VR9_DMA + *IFX_ARC4_CON = ( (1<<31) | ((key_len - 1)<<27) | (1<<26) | (3<<16) ); + //NDC=1,ENDI=1,GO=0,KSAE=1,SM=0 + + arc4->K3R = *((u32 *) in_key + 0); + arc4->K2R = *((u32 *) in_key + 1); + arc4->K1R = *((u32 *) in_key + 2); + arc4->K0R = *((u32 *) in_key + 3); +#else //dma + *AMAZONS_ARC4_CON = ( (1<<31) | ((key_len - 1)<<27) | (1<<26) | (3<<16) | (1<<4) ); + //NDC=1,ENDI=1,GO=0,KSAE=1,SM=1 + + arc4->K3R = *((u32 *) in_key + 0); + arc4->K2R = *((u32 *) in_key + 1); + arc4->K1R = *((u32 *) in_key + 2); + arc4->K0R = *((u32 *) in_key + 3); + +#if 0 + arc4->K3R = endian_swap(*((u32 *) in_key + 0)); + arc4->K2R = endian_swap(*((u32 *) in_key + 1)); + arc4->K1R = endian_swap(*((u32 *) in_key + 2)); + arc4->K0R = endian_swap(*((u32 *) in_key + 3)); +#endif + +#endif + +#if 0 // arc4 is a ugly state machine, KSAE can only be set once per session + ctx->key_length = key_len; + + memcpy ((u8 *) (ctx->buf), in_key, key_len); +#endif + + return 0; +} + +/*! \fn static void _deu_arc4_ecb(void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + \ingroup IFX_ARC4_FUNCTIONS + \brief sets ARC4 hardware to ECB mode + \param ctx crypto algo context + \param dst output bytestream + \param src input bytestream + \param iv initialization vector + \param nbytes length of bytestream + \param encdec 1 for encrypt; 0 for decrypt + \param inplace not used +*/ +static void _deu_arc4_ecb(void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + _deu_arc4 (ctx, dst, src, NULL, nbytes, encdec, 0); +} + +/*! \fn static void arc4_crypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) + \ingroup IFX_ARC4_FUNCTIONS + \brief encrypt/decrypt ARC4_BLOCK_SIZE of data + \param tfm linux crypto algo transform + \param out output bytestream + \param in input bytestream +*/ +static void arc4_crypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + struct arc4_ctx *ctx = crypto_tfm_ctx(tfm); + + _deu_arc4 (ctx, out, in, NULL, ARC4_BLOCK_SIZE, + CRYPTO_DIR_DECRYPT, CRYPTO_TFM_MODE_ECB); + +} + +/* + * \brief ARC4 function mappings +*/ +static struct crypto_alg ifxdeu_arc4_alg = { + .cra_name = "arc4", + .cra_driver_name = "ifxdeu-arc4", + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = ARC4_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct arc4_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_arc4_alg.cra_list), + .cra_u = { + .cipher = { + .cia_min_keysize = ARC4_MIN_KEY_SIZE, + .cia_max_keysize = ARC4_MAX_KEY_SIZE, + .cia_setkey = arc4_set_key, + .cia_encrypt = arc4_crypt, + .cia_decrypt = arc4_crypt, + } + } +}; + +/*! \fn static int ecb_arc4_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + \ingroup IFX_ARC4_FUNCTIONS + \brief ECB ARC4 encrypt using linux crypto blkcipher + \param desc blkcipher descriptor + \param dst output scatterlist + \param src input scatterlist + \param nbytes data size in bytes +*/ +static int ecb_arc4_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct arc4_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(1, "\n"); + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + _deu_arc4_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= ARC4_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn static int ecb_arc4_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + \ingroup IFX_ARC4_FUNCTIONS + \brief ECB ARC4 decrypt using linux crypto blkcipher + \param desc blkcipher descriptor + \param dst output scatterlist + \param src input scatterlist + \param nbytes data size in bytes +*/ +static int ecb_arc4_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct arc4_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(1, "\n"); + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + _deu_arc4_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= ARC4_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief ARC4 function mappings +*/ +static struct crypto_alg ifxdeu_ecb_arc4_alg = { + .cra_name = "ecb(arc4)", + .cra_driver_name = "ifxdeu-ecb(arc4)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = ARC4_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct arc4_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ecb_arc4_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = ARC4_MIN_KEY_SIZE, + .max_keysize = ARC4_MAX_KEY_SIZE, + .setkey = arc4_set_key, + .encrypt = ecb_arc4_encrypt, + .decrypt = ecb_arc4_decrypt, + } + } +}; + +/*! \fn int __init ifxdeu_init_arc4(void) + \ingroup IFX_ARC4_FUNCTIONS + \brief initialize arc4 driver +*/ +int __init ifxdeu_init_arc4(void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_arc4_alg))) + goto arc4_err; + + if ((ret = crypto_register_alg(&ifxdeu_ecb_arc4_alg))) + goto ecb_arc4_err; + + arc4_chip_init (); + + CRTCL_SECT_INIT; + + printk (KERN_NOTICE "IFX DEU ARC4 initialized %s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +arc4_err: + crypto_unregister_alg(&ifxdeu_arc4_alg); + printk(KERN_ERR "IFX arc4 initialization failed!\n"); + return ret; +ecb_arc4_err: + crypto_unregister_alg(&ifxdeu_ecb_arc4_alg); + printk (KERN_ERR "IFX ecb_arc4 initialization failed!\n"); + return ret; + +} + +/*! \fn void __exit ifxdeu_fini_arc4(void) + \ingroup IFX_ARC4_FUNCTIONS + \brief unregister arc4 driver +*/ +void __exit ifxdeu_fini_arc4(void) +{ + crypto_unregister_alg (&ifxdeu_arc4_alg); + crypto_unregister_alg (&ifxdeu_ecb_arc4_alg); +} + +#endif diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.h b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.h new file mode 100755 index 0000000000..8cd768d2c3 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_arc4.h @@ -0,0 +1,59 @@ +#ifndef IFXMIPS_ARC4_H +#define IFXMIPS_ARC4_H + +/* + * 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 file +*/ + +/*! + \defgroup IFX_DEU_DEFINITIONS IFX_DEU_DRIVERS + \ingroup IFX_DEU + \brief ifx deu definitions +*/ + +/*! + \file ifxmips_arc4.h + \brief ARC4 DEU header driver file +*/ + + + +#define ARC4_START IFX_ARC4_CON + +#ifdef CONFIG_CRYPTO_DEV_ARC4_AR9 +#include "ifxmips_deu_structs_ar9.h" +#endif +#ifdef CONFIG_CRYPTO_DEV_DMA_AR9 +#include "ifxmips_deu_structs_ar9.h" +#endif + +#ifdef CONFIG_CRYPTO_DEV_ARC4_VR9 +#include "ifxmips_deu_structs_vr9.h" +#endif +#ifdef CONFIG_CRYPTO_DEV_DMA_VR9 +#include "ifxmips_deu_structs_vr9.h" +#include <asm/ifx/irq.h> +#endif + +#endif /* IFXMIPS_ARC4_H */ diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_des.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_des.c new file mode 100755 index 0000000000..ffceb2868d --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_des.c @@ -0,0 +1,893 @@ +/* + * 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 +*/ + +/*! + \file ifxmips_des.c + \ingroup IFX_DEU + \brief DES encryption DEU driver file +*/ + +/*! + \defgroup IFX_DES_FUNCTIONS IFX_DES_FUNCTIONS + \ingroup IFX_DEU + \brief IFX DES Encryption functions +*/ + +/* Project Header Files */ +#include <linux/version.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/crypto.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <asm/byteorder.h> +#include <crypto/algapi.h> +#include "ifxmips_deu.h" + +/* DMA specific header and variables */ +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +#include "ifxmips_deu_dma.h" +#include <asm/ifx/irq.h> +#include <asm/ifx/ifx_dma_core.h> +extern _ifx_deu_device ifx_deu[1]; +extern u32 *des_buff_in; +extern u32 *des_buff_out; +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_POLL_DMA +#define CONFIG_CRYPTO_DEV_IFXMIPS_POLL_DMA +#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_POLL_DMA */ +#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_DMA */ + +spinlock_t des_lock; +#define CRTCL_SECT_INIT spin_lock_init(&des_lock) +#define CRTCL_SECT_START spin_lock_irqsave(&des_lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&des_lock, flag) + +/* Preprocessor declarations */ +#define DES_3DES_START IFX_DES_CON +#define DES_KEY_SIZE 8 +#define DES_EXPKEY_WORDS 32 +#define DES_BLOCK_SIZE 8 +#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE) +#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS) +#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE + +/* Function Declaration to prevent warning messages */ +void des_chip_init (void); +u32 endian_swap(u32 input); +u32 input_swap(u32 input); +int aes_memory_allocate(int value); +int des_memory_allocate(int value); +void memory_release(u32 *buffer); +u32* memory_alignment(const u8 *arg, u32 *buff_alloc, int in_out, int nbytes); +void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes); +void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes); + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +void ifx_deu_des (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode); +#else +void ifx_deu_des_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode); +#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_DMA */ + +struct des_ctx { + int controlr_M; + int key_length; + u8 iv[DES_BLOCK_SIZE]; + u32 expkey[DES3_EDE_EXPKEY_WORDS]; +}; + +extern int disable_deudma; + +/*! \fn int des_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets DES key + * \param tfm linux crypto algo transform + * \param key input key + * \param key_len key length +*/ +int des_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int key_len) +{ + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + + DPRINTF(0, "ctx @%p, key_len %d %d\n", ctx, key_len); + + ctx->controlr_M = 0; /* des */ + ctx->key_length = key_len; + + memcpy ((u8 *) (ctx->expkey), key, key_len); + + return 0; +} + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +/*! \fn void ifx_deu_des(void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode) + * \ingroup IFX_DES_FUNCTIONS + * \brief main interface to DES hardware + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc +*/ + +void ifx_deu_des (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode) +#else +/*! \fn void ifx_deu_des_core(void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode) + * \ingroup IFX_DES_FUNCTIONS + * \brief main interface to DES hardware + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc +*/ + +void ifx_deu_des_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode) +#endif +{ + volatile struct des_t *des = (struct des_t *) DES_3DES_START; + struct des_ctx *dctx = ctx_arg; + u32 *key = dctx->expkey; + ulong flag; + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + int i = 0; + int nblocks = 0; +#else + volatile struct deu_dma_t *dma = (struct deu_dma_t *) IFX_DEU_DMA_CON; + struct dma_device_info *dma_device = ifx_deu[0].dma_device; + //deu_drv_priv_t *deu_priv = (deu_drv_priv_t *)dma_device->priv; + int wlen = 0; + u32 *outcopy = NULL; + u32 *dword_mem_aligned_in = NULL; + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_POLL_DMA + u32 timeout = 0; + u32 *out_dma = NULL; +#endif + +#endif + + DPRINTF(0, "ctx @%p, mode %d, encdec %d\n", dctx, mode, encdec); + + CRTCL_SECT_START; + + des->controlr.E_D = !encdec; /* encryption */ + des->controlr.O = mode; /* 0 ECB, 1 CBC, 2 OFB, 3 CFB, 4 CTR */ + des->controlr.SM = 1; /* start after writing input register */ + des->controlr.DAU = 0; /* Disable Automatic Update of init vector */ + des->controlr.ARS = 1; /* Autostart Select - write to IHR */ + + des->controlr.M = dctx->controlr_M; + /* write keys */ + if (dctx->controlr_M == 0) { + /* DES mode */ + des->K1HR = DEU_ENDIAN_SWAP(*((u32 *) key + 0)); + des->K1LR = DEU_ENDIAN_SWAP(*((u32 *) key + 1)); +#ifdef CRYPTO_DEBUG + printk ("key1: %x\n", (*((u32 *) key + 0))); + printk ("key2: %x\n", (*((u32 *) key + 1))); +#endif + } else { + /* 3DES mode (EDE-x) */ + switch (dctx->key_length) { + case 24: + des->K3HR = DEU_ENDIAN_SWAP(*((u32 *) key + 4)); + des->K3LR = DEU_ENDIAN_SWAP(*((u32 *) key + 5)); + /* no break; */ + case 16: + des->K2HR = DEU_ENDIAN_SWAP(*((u32 *) key + 2)); + des->K2LR = DEU_ENDIAN_SWAP(*((u32 *) key + 3)); + /* no break; */ + case 8: + des->K1HR = DEU_ENDIAN_SWAP(*((u32 *) key + 0)); + des->K1LR = DEU_ENDIAN_SWAP(*((u32 *) key + 1)); + break; + default: + CRTCL_SECT_END; + return; + } + } + + /* write init vector (not required for ECB mode) */ + if (mode > 0) { + des->IVHR = DEU_ENDIAN_SWAP(*(u32 *) iv_arg); + des->IVLR = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 1)); + } + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + nblocks = nbytes / 4; + + for (i = 0; i < nblocks; i += 2) { + /* wait for busy bit to clear */ + + /*--- Workaround ---------------------------------------------------- + do a dummy read to the busy flag because it is not raised early + enough in CFB/OFB 3DES modes */ +#ifdef CRYPTO_DEBUG + printk ("ihr: %x\n", (*((u32 *) in_arg + i))); + printk ("ilr: %x\n", (*((u32 *) in_arg + 1 + i))); +#endif + des->IHR = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + i)); + des->ILR = INPUT_ENDIAN_SWAP(*((u32 *) in_arg + 1 + i)); /* start crypto */ + + while (des->controlr.BUS) { + /* this will not take long */ + } + + *((u32 *) out_arg + 0 + i) = des->OHR; + *((u32 *) out_arg + 1 + i) = des->OLR; + +#ifdef CRYPTO_DEBUG + printk ("ohr: %x\n", (*((u32 *) out_arg + i))); + printk ("olr: %x\n", (*((u32 *) out_arg + 1 + i))); +#endif + } + +#else /* dma mode */ + + /* Prepare Rx buf length used in dma psuedo interrupt */ + //deu_priv->deu_rx_buf = out_arg; + //deu_priv->deu_rx_len = nbytes; + + /* memory alignment issue */ + dword_mem_aligned_in = (u32 *) DEU_DWORD_REORDERING(in_arg, des_buff_in, BUFFER_IN, nbytes); + + dma->controlr.ALGO = 0; //DES + des->controlr.DAU = 0; + dma->controlr.BS = 0; + dma->controlr.EN = 1; + + while (des->controlr.BUS) { + // wait for AES to be ready + }; + + wlen = dma_device_write (dma_device, (u8 *) dword_mem_aligned_in, nbytes, NULL); + if (wlen != nbytes) { + dma->controlr.EN = 0; + CRTCL_SECT_END; + printk (KERN_ERR "[%s %s %d]: dma_device_write fail!\n", __FILE__, __func__, __LINE__); + return; // -EINVAL; + } + + WAIT_DES_DMA_READY(); + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_POLL_DMA + + outcopy = (u32 *) DEU_DWORD_REORDERING(out_arg, des_buff_out, BUFFER_OUT, nbytes); + + // polling DMA rx channel + while ((dma_device_read (dma_device, (u8 **) &out_dma, NULL)) == 0) { + timeout++; + + if (timeout >= 333000) { + dma->controlr.EN = 0; + CRTCL_SECT_END; + printk (KERN_ERR "[%s %s %d]: timeout!!\n", __FILE__, __func__, __LINE__); + return; // -EINVAL; + } + } + + WAIT_DES_DMA_READY(); + + DES_MEMORY_COPY(outcopy, out_dma, out_arg, nbytes); + +#else + + CRTCL_SECT_END; /* Sleep and wait for Rx finished */ + DEU_WAIT_EVENT(deu_priv->deu_thread_wait, DEU_EVENT, deu_priv->deu_event_flags); + CRTCL_SECT_START; + +#endif + +#endif /* dma mode */ + + if (mode > 0) { + *(u32 *) iv_arg = DEU_ENDIAN_SWAP(des->IVHR); + *((u32 *) iv_arg + 1) = DEU_ENDIAN_SWAP(des->IVLR); + }; + + CRTCL_SECT_END; +} + +//definitions from linux/include/crypto.h: +//#define CRYPTO_TFM_MODE_ECB 0x00000001 +//#define CRYPTO_TFM_MODE_CBC 0x00000002 +//#define CRYPTO_TFM_MODE_CFB 0x00000004 +//#define CRYPTO_TFM_MODE_CTR 0x00000008 +//#define CRYPTO_TFM_MODE_OFB 0x00000010 // not even defined +//but hardware definition: 0 ECB 1 CBC 2 OFB 3 CFB 4 CTR + +/*! \fn void ifx_deu_des(void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode) + * \ingroup IFX_DES_FUNCTIONS + * \brief main interface to DES hardware + * \param ctx_arg crypto algo context + * \param out_arg output bytestream + * \param in_arg input bytestream + * \param iv_arg initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param mode operation mode such as ebc, cbc +*/ + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +void ifx_deu_des (void *ctx_arg, u8 *out_arg, const u8 *in_arg, + u8 *iv_arg, u32 nbytes, int encdec, int mode) +{ + u32 remain = nbytes; + u32 inc; + + DPRINTF(0, "\n"); + + while (remain > 0) + { + if (remain >= DEU_MAX_PACKET_SIZE) + { + inc = DEU_MAX_PACKET_SIZE; + } + else + { + inc = remain; + } + + remain -= inc; + + ifx_deu_des_core(ctx_arg, out_arg, in_arg, iv_arg, inc, encdec, mode); + + out_arg += inc; + in_arg += inc; + } +} +#endif + + +/*! \fn void ifx_deu_des_ecb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets DES hardware to ECB mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ + +void ifx_deu_des_ecb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, dst, src, NULL, nbytes, encdec, 0); +} + +/*! \fn void ifx_deu_des_cbc (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets DES hardware to CBC mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_des_cbc (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, dst, src, iv, nbytes, encdec, 1); +} + +/*! \fn void ifx_deu_des_ofb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets DES hardware to OFB mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_des_ofb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, dst, src, iv, nbytes, encdec, 2); +} + +/*! \fn void ifx_deu_des_cfb (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + \ingroup IFX_DES_FUNCTIONS + \brief sets DES hardware to CFB mode + \param ctx crypto algo context + \param dst output bytestream + \param src input bytestream + \param iv initialization vector + \param nbytes length of bytestream + \param encdec 1 for encrypt; 0 for decrypt + \param inplace not used +*/ +void ifx_deu_des_cfb (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, dst, src, iv, nbytes, encdec, 3); +} + +/*! \fn void ifx_deu_des_ctr (void *ctx, uint8_t *dst, const uint8_t *src, uint8_t *iv, size_t nbytes, int encdec, int inplace) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets DES hardware to CTR mode + * \param ctx crypto algo context + * \param dst output bytestream + * \param src input bytestream + * \param iv initialization vector + * \param nbytes length of bytestream + * \param encdec 1 for encrypt; 0 for decrypt + * \param inplace not used +*/ +void ifx_deu_des_ctr (void *ctx, uint8_t *dst, const uint8_t *src, + uint8_t *iv, size_t nbytes, int encdec, int inplace) +{ + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, dst, src, iv, nbytes, encdec, 4); +} + +/*! \fn void des_encrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) + * \ingroup IFX_DES_FUNCTIONS + * \brief encrypt DES_BLOCK_SIZE of data + * \param tfm linux crypto algo transform + * \param out output bytestream + * \param in input bytestream +*/ +void des_encrypt (struct crypto_tfm *tfm, uint8_t * out, const uint8_t * in) +{ + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, out, in, NULL, DES_BLOCK_SIZE, CRYPTO_DIR_ENCRYPT, 0); +} + +/*! \fn void des_decrypt (struct crypto_tfm *tfm, uint8_t *out, const uint8_t *in) + * \ingroup IFX_DES_FUNCTIONS + * \brief encrypt DES_BLOCK_SIZE of data + * \param tfm linux crypto algo transform + * \param out output bytestream + * \param in input bytestream +*/ +void des_decrypt (struct crypto_tfm *tfm, uint8_t * out, const uint8_t * in) +{ + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + DPRINTF(0, "ctx @%p\n", ctx); + ifx_deu_des (ctx, out, in, NULL, DES_BLOCK_SIZE, CRYPTO_DIR_DECRYPT, 0); +} + +/* + * \brief 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. + * + */ + +/*! \fn int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) + * \ingroup IFX_DES_FUNCTIONS + * \brief sets 3DES key + * \param tfm linux crypto algo transform + * \param key input key + * \param keylen key length +*/ +int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int key_len) +{ + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + + DPRINTF(0, "ctx @%p, key_len %d\n", ctx, key_len); + + ctx->controlr_M = key_len / 8 + 1; // 3DES EDE1 / EDE2 / EDE3 Mode + ctx->key_length = key_len; + + memcpy ((u8 *) (ctx->expkey), key, key_len); + + return 0; +} + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_des_alg = { + .cra_name = "des", + .cra_driver_name = "ifxdeu-des", + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_module = THIS_MODULE, + .cra_alignmask = 3, + .cra_list = LIST_HEAD_INIT(ifxdeu_des_alg.cra_list), + .cra_u = { .cipher = { + .cia_min_keysize = DES_KEY_SIZE, + .cia_max_keysize = DES_KEY_SIZE, + .cia_setkey = des_setkey, + .cia_encrypt = des_encrypt, + .cia_decrypt = des_decrypt } } +}; + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_des3_ede_alg = { + .cra_name = "des3_ede", + .cra_driver_name = "ifxdeu-des3_ede", + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_module = THIS_MODULE, + .cra_alignmask = 3, + .cra_list = LIST_HEAD_INIT(ifxdeu_des3_ede_alg.cra_list), + .cra_u = { .cipher = { + .cia_min_keysize = DES_KEY_SIZE, + .cia_max_keysize = DES_KEY_SIZE, + .cia_setkey = des3_ede_setkey, + .cia_encrypt = des_encrypt, + .cia_decrypt = des_decrypt } } +}; + +/*! \fn int ecb_des_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_DES_FUNCTIONS + * \brief ECB DES encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes +*/ +int ecb_des_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(0, "ctx @%p\n", ctx); + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % DES_BLOCK_SIZE); + ifx_deu_des_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= DES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int ecb_des_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_DES_FUNCTIONS + * \brief ECB DES decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int ecb_des_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(0, "ctx @%p\n", ctx); + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + nbytes -= (nbytes % DES_BLOCK_SIZE); + ifx_deu_des_ecb(ctx, walk.dst.virt.addr, walk.src.virt.addr, + NULL, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= DES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_ecb_des_alg = { + .cra_name = "ecb(des)", + .cra_driver_name = "ifxdeu-ecb(des)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ecb_des_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .setkey = des_setkey, + .encrypt = ecb_des_encrypt, + .decrypt = ecb_des_decrypt, + } + } +}; + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_ecb_des3_ede_alg = { + .cra_name = "ecb(des3_ede)", + .cra_driver_name = "ifxdeu-ecb(des3_ede)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_ecb_des3_ede_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .setkey = des3_ede_setkey, + .encrypt = ecb_des_encrypt, + .decrypt = ecb_des_decrypt, + } + } +}; + +/*! \fn int cbc_des_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_DES_FUNCTIONS + * \brief CBC DES encrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int cbc_des_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(0, "ctx @%p\n", ctx); + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + //printk("iv = %08x\n", *(u32 *)iv); + nbytes -= (nbytes % DES_BLOCK_SIZE); + ifx_deu_des_cbc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_ENCRYPT, 0); + nbytes &= DES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/*! \fn int cbc_des_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) + * \ingroup IFX_DES_FUNCTIONS + * \brief CBC DES decrypt using linux crypto blkcipher + * \param desc blkcipher descriptor + * \param dst output scatterlist + * \param src input scatterlist + * \param nbytes data size in bytes + * \return err +*/ +int cbc_des_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + DPRINTF(0, "ctx @%p\n", ctx); + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = walk.iv; + //printk("iv = %08x\n", *(u32 *)iv); + nbytes -= (nbytes % DES_BLOCK_SIZE); + ifx_deu_des_cbc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + iv, nbytes, CRYPTO_DIR_DECRYPT, 0); + nbytes &= DES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_cbc_des_alg = { + .cra_name = "cbc(des)", + .cra_driver_name = "ifxdeu-cbc(des)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_cbc_des_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + .setkey = des_setkey, + .encrypt = cbc_des_encrypt, + .decrypt = cbc_des_decrypt, + } + } +}; + +/* + * \brief DES function mappings +*/ +struct crypto_alg ifxdeu_cbc_des3_ede_alg = { + .cra_name = "cbc(des3_ede)", + .cra_driver_name = "ifxdeu-cbc(des3_ede)", + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des_ctx), + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_cbc_des3_ede_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + .setkey = des3_ede_setkey, + .encrypt = cbc_des_encrypt, + .decrypt = cbc_des_decrypt, + } + } +}; + +/*! \fn int __init ifxdeu_init_des (void) + * \ingroup IFX_DES_FUNCTIONS + * \brief initialize des driver +*/ +int __init ifxdeu_init_des (void) +{ + int ret = 0; + + ret = crypto_register_alg(&ifxdeu_des_alg); + if (ret < 0) + goto des_err; + + ret = crypto_register_alg(&ifxdeu_ecb_des_alg); + if (ret < 0) + goto ecb_des_err; + + ret = crypto_register_alg(&ifxdeu_cbc_des_alg); + if (ret < 0) + goto cbc_des_err; + + ret = crypto_register_alg(&ifxdeu_des3_ede_alg); + if (ret < 0) + goto des3_ede_err; + + ret = crypto_register_alg(&ifxdeu_ecb_des3_ede_alg); + if (ret < 0) + goto ecb_des3_ede_err; + + ret = crypto_register_alg(&ifxdeu_cbc_des3_ede_alg); + if (ret < 0) + goto cbc_des3_ede_err; + + des_chip_init(); + + CRTCL_SECT_INIT; + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + if (ALLOCATE_MEMORY(BUFFER_IN, DES_ALGO) < 0) { + printk(KERN_ERR "[%s %s %d]: malloc memory fail!\n", __FILE__, __func__, __LINE__); + goto cbc_des3_ede_err; + } + if (ALLOCATE_MEMORY(BUFFER_OUT, DES_ALGO) < 0) { + printk(KERN_ERR "[%s %s %d]: malloc memory fail!\n", __FILE__, __func__, __LINE__); + goto cbc_des3_ede_err; + } +#endif + + printk (KERN_NOTICE "IFX DEU DES initialized %s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +des_err: + crypto_unregister_alg(&ifxdeu_des_alg); + printk(KERN_ERR "IFX des initialization failed!\n"); + return ret; +ecb_des_err: + crypto_unregister_alg(&ifxdeu_ecb_des_alg); + printk (KERN_ERR "IFX ecb_des initialization failed!\n"); + return ret; +cbc_des_err: + crypto_unregister_alg(&ifxdeu_cbc_des_alg); + printk (KERN_ERR "IFX cbc_des initialization failed!\n"); + return ret; +des3_ede_err: + crypto_unregister_alg(&ifxdeu_des3_ede_alg); + printk(KERN_ERR "IFX des3_ede initialization failed!\n"); + return ret; +ecb_des3_ede_err: + crypto_unregister_alg(&ifxdeu_ecb_des3_ede_alg); + printk (KERN_ERR "IFX ecb_des3_ede initialization failed!\n"); + return ret; +cbc_des3_ede_err: + crypto_unregister_alg(&ifxdeu_cbc_des3_ede_alg); + printk (KERN_ERR "IFX cbc_des3_ede initialization failed!\n"); + return ret; +} + +/*! \fn void __exit ifxdeu_fini_des (void) + * \ingroup IFX_DES_FUNCTIONS + * \brief unregister des driver +*/ +void __exit ifxdeu_fini_des (void) +{ + crypto_unregister_alg (&ifxdeu_des_alg); + crypto_unregister_alg (&ifxdeu_ecb_des_alg); + crypto_unregister_alg (&ifxdeu_cbc_des_alg); + crypto_unregister_alg (&ifxdeu_des3_ede_alg); + crypto_unregister_alg (&ifxdeu_ecb_des3_ede_alg); + crypto_unregister_alg (&ifxdeu_cbc_des3_ede_alg); + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + FREE_MEMORY(des_buff_in); + FREE_MEMORY(des_buff_out); +#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_DMA_DANUBE */ +} 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"); diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.h b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.h new file mode 100755 index 0000000000..77bb8daefc --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.h @@ -0,0 +1,144 @@ +/* + * 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.h + \brief main deu driver header file +*/ + +/*! + \defgroup IFX_DEU_DEFINITIONS IFX_DEU_DEFINITIONS + \ingroup IFX_DEU + \brief ifx deu definitions +*/ + + +#ifndef IFXMIPS_DEU_H +#define IFXMIPS_DEU_H + +#define IFX_DEU_DRV_VERSION "1.0.1" + +#include "ifxmips_deu_danube.h" + +#define IFXDEU_ALIGNMENT 16 + +#define PFX "ifxdeu: " + +#define IFXDEU_CRA_PRIORITY 300 +#define IFXDEU_COMPOSITE_PRIORITY 400 + + +#define IFX_DEU_BASE_ADDR (KSEG1 | 0x1E103100) +#define IFX_DEU_CLK ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x0000)) +#define IFX_DEU_ID ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x0008)) +#define IFX_DES_CON ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x0010)) +#define IFX_AES_CON ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x0050)) +#define IFX_HASH_CON ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x00B0)) +#define IFX_ARC4_CON ((volatile u32 *)(IFX_DEU_BASE_ADDR + 0x0100)) + +#define IFX_DEU_ID_REV 0x00001F +#define IFX_DEU_ID_ID 0x00FF00 +#define IFX_DEU_ID_DMA 0x010000 +#define IFX_DEU_ID_HASH 0x020000 +#define IFX_DEU_ID_AES 0x040000 +#define IFX_DEU_ID_3DES 0x080000 +#define IFX_DEU_ID_DES 0x100000 + +#define CRYPTO_DIR_ENCRYPT 1 +#define CRYPTO_DIR_DECRYPT 0 + +#undef CRYPTO_DEBUG + +#ifdef CRYPTO_DEBUG +extern char deu_debug_level; +#define DPRINTF(level, format, args...) if (level < deu_debug_level) printk(KERN_INFO "[%s %s %d]: " format, __FILE__, __func__, __LINE__, ##args); +#else +#define DPRINTF(level, format, args...) +#endif + +#define IFX_MPS (KSEG1 | 0x1F107000) + +#define IFX_MPS_CHIPID ((volatile u32*)(IFX_MPS + 0x0344)) +#define IFX_MPS_CHIPID_VERSION_GET(value) (((value) >> 28) & 0xF) +#define IFX_MPS_CHIPID_VERSION_SET(value) (((value) & 0xF) << 28) +#define IFX_MPS_CHIPID_PARTNUM_GET(value) (((value) >> 12) & 0xFFFF) +#define IFX_MPS_CHIPID_PARTNUM_SET(value) (((value) & 0xFFFF) << 12) +#define IFX_MPS_CHIPID_MANID_GET(value) (((value) >> 1) & 0x7FF) +#define IFX_MPS_CHIPID_MANID_SET(value) (((value) & 0x7FF) << 1) + +void chip_version(void); + +int __init ifxdeu_init_des (void); +int __init ifxdeu_init_aes (void); +int __init ifxdeu_init_arc4 (void); +int __init ifxdeu_init_sha1 (void); +int __init ifxdeu_init_md5 (void); +int __init ifxdeu_init_sha1_hmac (void); +int __init ifxdeu_init_md5_hmac (void); + +void __exit ifxdeu_fini_des (void); +void __exit ifxdeu_fini_aes (void); +void __exit ifxdeu_fini_arc4 (void); +void __exit ifxdeu_fini_sha1 (void); +void __exit ifxdeu_fini_md5 (void); +void __exit ifxdeu_fini_sha1_hmac (void); +void __exit ifxdeu_fini_md5_hmac (void); +void __exit ifxdeu_fini_dma(void); + +int deu_dma_init (void); + +#define DEU_WAKELIST_INIT(queue) \ + init_waitqueue_head(&queue) + +#define DEU_WAIT_EVENT_TIMEOUT(queue, event, flags, timeout) \ + do { \ + wait_event_interruptible_timeout((queue), \ + test_bit((event), &(flags)), (timeout)); \ + clear_bit((event), &(flags)); \ + }while (0) + + +#define DEU_WAKEUP_EVENT(queue, event, flags) \ + do { \ + set_bit((event), &(flags)); \ + wake_up_interruptible(&(queue)); \ + }while (0) + +#define DEU_WAIT_EVENT(queue, event, flags) \ + do { \ + wait_event_interruptible(queue, \ + test_bit((event), &(flags))); \ + clear_bit((event), &(flags)); \ + }while (0) + +typedef struct deu_drv_priv { + wait_queue_head_t deu_thread_wait; +#define DEU_EVENT 1 + volatile long deu_event_flags; + u8 *deu_rx_buf; + u32 deu_rx_len; +}deu_drv_priv_t; + +#endif /* IFXMIPS_DEU_H */ diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.c new file mode 100755 index 0000000000..a8cf8a58fd --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.c @@ -0,0 +1,443 @@ +/* + * 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 deu driver module +*/ + +/*! + \file ifxmips_deu_danube.c + \ingroup IFX_DEU + \brief board specific deu driver file for danube +*/ + +/*! + \defgroup BOARD_SPECIFIC_FUNCTIONS IFX_BOARD_SPECIFIC_FUNCTIONS + \ingroup IFX_DEU + \brief board specific deu functions +*/ + +/* Project header files */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/io.h> //dma_cache_inv +#include "ifxmips_deu.h" + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +u32 *des_buff_in = NULL; +u32 *des_buff_out = NULL; +u32 *aes_buff_in = NULL; +u32 *aes_buff_out = NULL; +_ifx_deu_device ifx_deu[1]; +#endif + +/* Function Declerations */ +int aes_memory_allocate(int value); +int des_memory_allocate(int value); +void memory_release(u32 *addr); +int aes_chip_init (void); +void des_chip_init (void); +int deu_dma_init (void); +u32 endian_swap(u32 input); +u32* memory_alignment(const u8 *arg, u32 *buff_alloc, int in_out, int nbytes); +void dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes); +void __exit ifxdeu_fini_dma(void); + +#define DES_3DES_START IFX_DES_CON +#define AES_START IFX_AES_CON + +/* Variables definition */ +int ifx_danube_pre_1_4; +u8 *g_dma_page_ptr = NULL; +u8 *g_dma_block = NULL; +u8 *g_dma_block2 = NULL; + + +/*! \fn int deu_dma_init (void) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief Initialize DMA for DEU usage. DMA specific registers are + * intialized here, including a pointer to the device, memory + * space for the device and DEU-DMA descriptors + * \return -1 if fail, otherwise return 0 +*/ + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA +int deu_dma_init (void) +{ + struct dma_device_info *dma_device = NULL; + int i = 0; + volatile struct deu_dma_t *dma = (struct deu_dma_t *) IFX_DEU_DMA_CON; + struct dma_device_info *deu_dma_device_ptr; + + // get one free page and share between g_dma_block and g_dma_block2 + printk("PAGE_SIZE = %ld\n", PAGE_SIZE); + g_dma_page_ptr = (u8 *)__get_free_page(GFP_KERNEL); // need 16-byte alignment memory block + g_dma_block = g_dma_page_ptr; // need 16-byte alignment memory block + g_dma_block2 = (u8 *)(g_dma_page_ptr + (PAGE_SIZE >> 1)); // need 16-byte alignment memory block + + + deu_dma_device_ptr = dma_device_reserve ("DEU"); + if (!deu_dma_device_ptr) { + printk ("DEU: reserve DMA fail!\n"); + return -1; + } + ifx_deu[0].dma_device = deu_dma_device_ptr; + dma_device = deu_dma_device_ptr; + //dma_device->priv = &deu_dma_priv; + dma_device->buffer_alloc = &deu_dma_buffer_alloc; + dma_device->buffer_free = &deu_dma_buffer_free; + dma_device->intr_handler = &deu_dma_intr_handler; + dma_device->tx_endianness_mode = IFX_DMA_ENDIAN_TYPE3; + dma_device->rx_endianness_mode = IFX_DMA_ENDIAN_TYPE3; + dma_device->port_num = 1; + dma_device->tx_burst_len = 4; + dma_device->max_rx_chan_num = 1; + dma_device->max_tx_chan_num = 1; + dma_device->port_packet_drop_enable = 0; + + for (i = 0; i < dma_device->max_rx_chan_num; i++) { + dma_device->rx_chan[i]->packet_size = DEU_MAX_PACKET_SIZE; + dma_device->rx_chan[i]->desc_len = 1; + dma_device->rx_chan[i]->control = IFX_DMA_CH_ON; + dma_device->rx_chan[i]->byte_offset = 0; + dma_device->rx_chan[i]->chan_poll_enable = 1; + + } + + for (i = 0; i < dma_device->max_tx_chan_num; i++) { + dma_device->tx_chan[i]->control = IFX_DMA_CH_ON; + dma_device->tx_chan[i]->desc_len = 1; + dma_device->tx_chan[i]->chan_poll_enable = 1; + } + + dma_device->current_tx_chan = 0; + dma_device->current_rx_chan = 0; + + dma_device_register (dma_device); + for (i = 0; i < dma_device->max_rx_chan_num; i++) { + (dma_device->rx_chan[i])->open (dma_device->rx_chan[i]); + } + + dma->controlr.BS = 0; + dma->controlr.RXCLS = 0; + dma->controlr.EN = 1; + + + *IFX_DMA_PS = 1; + + /* DANUBE PRE 1.4 SOFTWARE FIX */ + if (ifx_danube_pre_1_4) + *IFX_DMA_PCTRL = 0x14; + else + *IFX_DMA_PCTRL = 0xF14; + + return 0; +} + +/*! \fn u32 *memory_alignment(const u8 *arg, u32 *buffer_alloc, int in_buff, int nbytes) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief A fix to align mis-aligned address for Danube version 1.3 chips which has + * memory alignment issues. + * \param arg Pointer to the input / output memory address + * \param buffer_alloc A pointer to the buffer + * \param in_buff Input (if == 1) or Output (if == 0) buffer + * \param nbytes Number of bytes of data + * \return returns arg: if address is aligned, buffer_alloc: if memory address is not aligned +*/ + +u32 *memory_alignment(const u8 *arg, u32 *buffer_alloc, int in_buff, int nbytes) +{ + if (ifx_danube_pre_1_4) { + /* for input buffer */ + if(in_buff) { + if (((u32) arg) & 0xF) { + memcpy(buffer_alloc, arg, nbytes); + return (u32 *) buffer_alloc; + } + else + return (u32 *) arg; + } + else { + /* for output buffer */ + if (((u32) arg) & 0x3) + return buffer_alloc; + else + return (u32 *) arg; + } + } + + return (u32 *) arg; +} + +/*! \fn void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief copy the DMA data to the memory address space for AES. The swaping of the 4 bytes + * is done only for Danube version 1.3 (FIX). Otherwise, it is a direct memory copy + * to out_arg pointer + * \param outcopy Pointer to the address to store swapped copy + * \param out_dma A pointer to the memory address that stores the DMA data + * \param out_arg The pointer to the memory address that needs to be copied to + * \param nbytes Number of bytes of data +*/ + +void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes) +{ + int i = 0; + int x = 0; + + /* DANUBE PRE 1.4 SOFTWARE FIX */ + if (ifx_danube_pre_1_4) { + for (i = 0; i < (nbytes / 4); i++) { + x = i ^ 0x3; + outcopy[i] = out_dma[x]; + + } + if (((u32) out_arg) & 0x3) { + memcpy((u8 *)out_arg, outcopy, nbytes); + } + } + else + memcpy (out_arg, out_dma, nbytes); +} + +/*! \fn void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief copy the DMA data to the memory address space for DES. The swaping of the 4 bytes + * is done only for Danube version 1.3 (FIX). Otherwise, it is a direct memory copy + * to out_arg pointer + * + * \param outcopy Pointer to the address to store swapped copy + * \param out_dma A pointer to the memory address that stores the DMA data + * \param out_arg The pointer to the memory address that needs to be copied to + * \param nbytes Number of bytes of data +*/ + +void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes) +{ + int i = 0; + int x = 0; + + /* DANUBE PRE 1.4 SOFTWARE FIX */ + if (ifx_danube_pre_1_4) { + for (i = 0; i < (nbytes / 4); i++) { + x = i ^ 1; + outcopy[i] = out_dma[x]; + + } + if (((u32) out_arg) & 0x3) { + memcpy((u8 *)out_arg, outcopy, nbytes); + } + } + else + memcpy (out_arg, out_dma, nbytes); +} + +/*! \fn int des_memory_allocate(int value) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief allocates memory to the necessary memory input/output buffer location, used during + * the DES algorithm DMA transfer (memory alignment issues) + * \param value value determinds whether the calling of the function is for a input buffer + * or for an output buffer memory allocation +*/ + +int des_memory_allocate(int value) +{ + if (ifx_danube_pre_1_4) { + if (value == BUFFER_IN) { + des_buff_in = kmalloc(DEU_MAX_PACKET_SIZE, GFP_ATOMIC); + if (!des_buff_in) + return -1; + else + return 0; + } + else { + des_buff_out = kmalloc(DEU_MAX_PACKET_SIZE, GFP_ATOMIC); + if (!des_buff_out) + return -1; + else + return 0; + } + } + + else + return 0; +} + +/*! \fn int aes_memory_allocate(int value) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief allocates memory to the necessary memory input/output buffer location, used during + * the AES algorithm DMA transfer (memory alignment issues) + * \param value value determinds whether the calling of the function is for a input buffer + * or for an output buffer memory allocation +*/ + +int aes_memory_allocate(int value) +{ + if (ifx_danube_pre_1_4) { + if (value == BUFFER_IN) { + aes_buff_in = kmalloc(DEU_MAX_PACKET_SIZE, GFP_ATOMIC); + if (!aes_buff_in) + return -1; + else + return 0; + } + else { + aes_buff_out = kmalloc(DEU_MAX_PACKET_SIZE, GFP_ATOMIC); + if (!aes_buff_out) + return -1; + else + return 0; + } + } + + else + return 0; +} + +/*! \fn void memory_release(u32 *addr) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief frees previously allocated memory + * \param addr memory address of the buffer that needs to be freed +*/ + +void memory_release(u32 *addr) +{ + if (addr) + kfree(addr); + return; +} + +/*! \fn __exit ifxdeu_fini_dma(void) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief unregister dma devices after exit +*/ + +void __exit ifxdeu_fini_dma(void) +{ + if (g_dma_page_ptr) + free_page((u32) g_dma_page_ptr); + dma_device_release(ifx_deu[0].dma_device); + dma_device_unregister(ifx_deu[0].dma_device); + +} + +#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_DMA */ + +/*! \fn u32 endian_swap(u32 input) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief function is not used + * \param input Data input to be swapped + * \return input +*/ + +u32 endian_swap(u32 input) +{ + return input; +} + +/*! \fn u32 input_swap(u32 input) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief Swap the input data if the current chip is Danube version + * 1.4 and do nothing to the data if the current chip is + * Danube version 1.3 + * \param input data that needs to be swapped + * \return input or swapped input +*/ + +u32 input_swap(u32 input) +{ + if (!ifx_danube_pre_1_4) { + u8 *ptr = (u8 *)&input; + return ((ptr[3] << 24) | (ptr[2] << 16) | (ptr[1] << 8) | ptr[0]); + } + else + return input; +} + + + +/*! \fn void aes_chip_init (void) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief initialize AES hardware +*/ + +int aes_chip_init (void) +{ + volatile struct aes_t *aes = (struct aes_t *) AES_START; + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + //start crypto engine with write to ILR + aes->controlr.SM = 1; + aes->controlr.ARS = 1; +#else + aes->controlr.SM = 1; + aes->controlr.ARS = 1; // 0 for dma +#endif + return 0; +} + +/*! \fn void des_chip_init (void) + * \ingroup BOARD_SPECIFIC_FUNCTIONS + * \brief initialize DES hardware +*/ + +void des_chip_init (void) +{ + volatile struct des_t *des = (struct des_t *) DES_3DES_START; + +#ifndef CONFIG_CRYPTO_DEV_IFXMIPS_DMA + // start crypto engine with write to ILR + des->controlr.SM = 1; + des->controlr.ARS = 1; +#else + des->controlr.SM = 1; + des->controlr.ARS = 1; // 0 for dma + +#endif +} + +/*! \fn void chip_version (void) + * \ingroup IFX_DES_FUNCTIONS + * \brief To find the version of the chip by looking at the chip ID + * \param ifx_danube_pre_1_4 (sets to 1 if Chip is Danube less than v1.4) +*/ + +void chip_version(void) +{ + /* DANUBE PRE 1.4 SOFTWARE FIX */ + int chip_id = 0; + chip_id = *IFX_MPS_CHIPID; + chip_id >>= 28; + + if (chip_id >= 4) { + ifx_danube_pre_1_4 = 0; + printk("Danube Chip ver. 1.4 detected. \n"); + } + else { + ifx_danube_pre_1_4 = 1; + printk("Danube Chip ver. 1.3 or below detected. \n"); + } + + return; +} + diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.h b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.h new file mode 100755 index 0000000000..457e11b322 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_danube.h @@ -0,0 +1,230 @@ +/* + * 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 / Infineon Technologies + */ + +/*! + \defgroup IFX_DEU IFX_DEU_DRIVERS + \ingroup API + \brief deu driver module +*/ + +/*! + \file ifxmips_deu_danube.h + \brief board specific driver header file for danube +*/ + +/*! + \defgroup BOARD_SPECIFIC_FUNCTIONS IFX_BOARD_SPECIFIC_FUNCTIONS + \ingroup IFX_DEU + \brief board specific deu header files +*/ + +#ifndef IFXMIPS_DEU_DANUBE_H +#define IFXMIPS_DEU_DANUBE_H + +#ifdef CONFIG_CRYPTO_DEV_DMA +#define DEU_DWORD_REORDERING(ptr, buffer, in_out, bytes) memory_alignment(ptr, buffer, in_out, bytes) +#define AES_MEMORY_COPY(outcopy, out_dma, out_arg, nbytes) aes_dma_memory_copy(outcopy, out_dma, out_arg, nbytes) +#define DES_MEMORY_COPY(outcopy, out_dma, out_arg, nbytes) des_dma_memory_copy(outcopy, out_dma, out_arg, nbytes) +#define BUFFER_IN 1 +#define BUFFER_OUT 0 +#define DELAY_PERIOD 9 +#define AES_ALGO 1 +#define DES_ALGO 0 +#define FREE_MEMORY(buff) memory_release(buff) +#define ALLOCATE_MEMORY(val, type) type ? aes_memory_allocate(val) : des_memory_allocate(val) +#endif /* CONFIG_CRYPTO_DEV_DMA */ + +#define INPUT_ENDIAN_SWAP(input) input_swap(input) +#define DEU_ENDIAN_SWAP(input) endian_swap(input) +#define AES_DMA_MISC_CONFIG() + +#define WAIT_AES_DMA_READY() \ + do { \ + int i; \ + volatile struct deu_dma_t *dma = (struct deu_dma_t *) IFX_DEU_DMA_CON; \ + volatile struct aes_t *aes = (volatile struct aes_t *) AES_START; \ + for (i = 0; i < 10; i++) \ + udelay(DELAY_PERIOD); \ + while (dma->controlr.BSY) {}; \ + while (aes->controlr.BUS) {}; \ + } while (0) + +#define WAIT_DES_DMA_READY() \ + do { \ + int i; \ + volatile struct deu_dma_t *dma = (struct deu_dma_t *) IFX_DEU_DMA_CON; \ + volatile struct des_t *des = (struct des_t *) DES_3DES_START; \ + for (i = 0; i < 10; i++) \ + udelay(DELAY_PERIOD); \ + while (dma->controlr.BSY) {}; \ + while (des->controlr.BUS) {}; \ + } while (0) + +#define SHA_HASH_INIT \ + do { \ + volatile struct deu_hash_t *hash = (struct deu_hash_t *) HASH_START; \ + hash->controlr.SM = 1; \ + hash->controlr.ALGO = 0; \ + hash->controlr.INIT = 1; \ + } while(0) + +/* DEU STRUCTURES */ + +struct clc_controlr_t { + u32 Res:26; + u32 FSOE:1; + u32 SBWE:1; + u32 EDIS:1; + u32 SPEN:1; + u32 DISS:1; + u32 DISR:1; + +}; + +struct des_t { + struct des_controlr { + u32 KRE:1; + u32 reserved1:5; + u32 GO:1; + u32 STP:1; + u32 Res2:6; + u32 NDC:1; + u32 ENDI:1; + u32 Res3:2; + u32 F:3; + u32 O:3; + u32 BUS:1; + u32 DAU:1; + u32 ARS:1; + u32 SM:1; + u32 E_D:1; + u32 M:3; + + } controlr; + u32 IHR; + u32 ILR; + u32 K1HR; + u32 K1LR; + u32 K2HR; + u32 K2LR; + u32 K3HR; + u32 K3LR; + u32 IVHR; + u32 IVLR; + u32 OHR; + u32 OLR; +}; + +struct aes_t { + struct aes_controlr { + + u32 KRE:1; + u32 reserved1:4; + u32 PNK:1; + u32 GO:1; + u32 STP:1; + + u32 reserved2:6; + u32 NDC:1; + u32 ENDI:1; + u32 reserved3:2; + + u32 F:3; //fbs + u32 O:3; //om + u32 BUS:1; //bsy + u32 DAU:1; + u32 ARS:1; + u32 SM:1; + u32 E_D:1; + u32 KV:1; + u32 K:2; //KL + + } controlr; + u32 ID3R; //80h + u32 ID2R; //84h + u32 ID1R; //88h + u32 ID0R; //8Ch + u32 K7R; //90h + u32 K6R; //94h + u32 K5R; //98h + u32 K4R; //9Ch + u32 K3R; //A0h + u32 K2R; //A4h + u32 K1R; //A8h + u32 K0R; //ACh + u32 IV3R; //B0h + u32 IV2R; //B4h + u32 IV1R; //B8h + u32 IV0R; //BCh + u32 OD3R; //D4h + u32 OD2R; //D8h + u32 OD1R; //DCh + u32 OD0R; //E0h +}; + +struct deu_hash_t { + struct hash_controlr { + u32 reserved1:5; + u32 KHS:1; + u32 GO:1; + u32 INIT:1; + u32 reserved2:6; + u32 NDC:1; + u32 ENDI:1; + u32 reserved3:7; + u32 DGRY:1; + u32 BSY:1; + u32 reserved4:1; + u32 IRCL:1; + u32 SM:1; + u32 KYUE:1; + u32 HMEN:1; + u32 SSEN:1; + u32 ALGO:1; + + } controlr; + u32 MR; //B4h + u32 D1R; //B8h + u32 D2R; //BCh + u32 D3R; //C0h + u32 D4R; //C4h + u32 D5R; //C8h + + u32 dummy; //CCh + + u32 KIDX; //D0h + u32 KEY; //D4h + u32 DBN; //D8h +}; + +struct deu_dma_t { + struct dma_controlr { + u32 reserved1:22; + u32 BS:2; + u32 BSY:1; + u32 reserved2:1; + u32 ALGO:2; + u32 RXCLS:2; + u32 reserved3:1; + u32 EN:1; + + } controlr; +}; + +#endif /* IFXMIPS_DEU_DANUBE_H */ diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.c new file mode 100755 index 0000000000..ebc4af048d --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.c @@ -0,0 +1,150 @@ +/* + * 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 IFX_API + \brief ifx deu driver module +*/ + +/*! + \file ifxmips_deu_dma.c + \ingroup IFX_DEU + \brief DMA deu driver file +*/ + +/*! + \defgroup IFX_DMA_FUNCTIONS IFX_DMA_FUNCTIONS + \ingroup IFX_DEU + \brief deu-dma driver functions +*/ + +/* Project header files */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <asm/io.h> +#include "ifxmips_deu.h" + +extern _ifx_deu_device ifx_deu[1]; +extern spinlock_t ifx_deu_lock; + +//extern deu_drv_priv_t deu_dma_priv; + +/*! \fn int deu_dma_intr_handler (struct dma_device_info *dma_dev, int status) + * \ingroup IFX_DMA_FUNCTIONS + * \brief callback function for deu dma interrupt + * \param dma_dev dma device + * \param status not used +*/ +int deu_dma_intr_handler (struct dma_device_info *dma_dev, int status) +{ +#if 0 + int len = 0; + while (len <= 20000) { len++; } + u8 *buf; + int len = 0; + + + deu_drv_priv_t *deu_priv = (deu_drv_priv_t *)dma_dev->priv; + //printk("status:%d \n",status); + switch(status) { + case RCV_INT: + len = dma_device_read(dma_dev, (u8 **)&buf, NULL); + if ( len != deu_priv->deu_rx_len) { + printk(KERN_ERR "%s packet length %d is not equal to expect %d\n", + __func__, len, deu_priv->deu_rx_len); + return -1; + } + memcpy(deu_priv->deu_rx_buf, buf, deu_priv->deu_rx_len); + /* Reset for next usage */ + deu_priv->deu_rx_buf = NULL; + deu_priv->deu_rx_len = 0; + DEU_WAKEUP_EVENT(deu_priv->deu_thread_wait, DEU_EVENT, deu_priv->deu_event_flags); + break; + case TX_BUF_FULL_INT: + // delay for buffer to be cleared + while (len <= 20000) { len++; } + break; + + case TRANSMIT_CPT_INT: + break; + default: + break; + } +#endif + return 0; +} + +extern u8 *g_dma_block; +extern u8 *g_dma_block2; + +/*! \fn u8 *deu_dma_buffer_alloc (int len, int *byte_offset, void **opt) + * \ingroup IFX_DMA_FUNCTIONS + * \brief callback function for allocating buffers for dma receive descriptors + * \param len not used + * \param byte_offset dma byte offset + * \param *opt not used + * +*/ +u8 *deu_dma_buffer_alloc (int len, int *byte_offset, void **opt) +{ + u8 *swap = NULL; + + // dma-core needs at least 2 blocks of memory + swap = g_dma_block; + g_dma_block = g_dma_block2; + g_dma_block2 = swap; + + //dma_cache_wback_inv((unsigned long) g_dma_block, (PAGE_SIZE >> 1)); + *byte_offset = 0; + + return g_dma_block; +} + +/*! \fn int deu_dma_buffer_free (u8 * dataptr, void *opt) + * \ingroup IFX_DMA_FUNCTIONS + * \brief callback function for freeing dma transmit descriptors + * \param dataptr data pointer to be freed + * \param opt not used +*/ +int deu_dma_buffer_free (u8 *dataptr, void *opt) +{ +#if 0 + printk("Trying to free memory buffer\n"); + if (dataptr == NULL && opt == NULL) + return 0; + else if (opt == NULL) { + kfree(dataptr); + return 1; + } + else if (dataptr == NULL) { + kfree(opt); + return 1; + } + else { + kfree(opt); + kfree(dataptr); + } +#endif + return 0; +} + diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.h b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.h new file mode 100755 index 0000000000..666009727e --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu_dma.h @@ -0,0 +1,70 @@ +/* + * 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 + */ + +/*! + \addtogroup IFX_DEU IFX_DEU_DRIVERS + \ingroup API + \brief ifx deu driver module +*/ + +/*! + \file ifxmips_deu_dma.h + \ingroup IFX_DEU + \brief DMA deu driver header file +*/ + +#ifndef IFXMIPS_DEU_DMA_H +#define IFXMIPS_DEU_DMA_H + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/crypto.h> +#include <asm/scatterlist.h> +#include <asm/byteorder.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> + +// must match the size of memory block allocated for g_dma_block and g_dma_block2 +#define DEU_MAX_PACKET_SIZE (PAGE_SIZE >> 1) + +typedef struct ifx_deu_device { + struct dma_device_info *dma_device; + u8 *dst; + u8 *src; + int len; + int dst_count; + int src_count; + int recv_count; + int packet_size; + int packet_num; + wait_queue_t wait; +} _ifx_deu_device; + +extern _ifx_deu_device ifx_deu[1]; + +extern int deu_dma_intr_handler (struct dma_device_info *, int); +extern u8 *deu_dma_buffer_alloc (int, int *, void **); +extern int deu_dma_buffer_free (u8 *, void *); +extern void deu_dma_inactivate_poll(struct dma_device_info* dma_dev); +extern void deu_dma_activate_poll (struct dma_device_info* dma_dev); +extern struct dma_device_info* deu_dma_reserve(struct dma_device_info** dma_device); +extern int deu_dma_release(struct dma_device_info** dma_device); + +#endif /* IFMIPS_DEU_DMA_H */ diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5.c new file mode 100755 index 0000000000..cd484ab0df --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5.c @@ -0,0 +1,264 @@ +/* + * 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_md5.c + \ingroup IFX_DEU + \brief MD5 encryption deu driver file +*/ + +/*! + \defgroup IFX_MD5_FUNCTIONS IFX_MD5_FUNCTIONS + \ingroup IFX_DEU + \brief ifx deu MD5 functions +*/ + +/*Project header files */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/crypto.h> +#include <linux/types.h> +#include <asm/byteorder.h> +#include "ifxmips_deu.h" + +#define MD5_DIGEST_SIZE 16 +#define MD5_HMAC_BLOCK_SIZE 64 +#define MD5_BLOCK_WORDS 16 +#define MD5_HASH_WORDS 4 +#define HASH_START IFX_HASH_CON + +static spinlock_t lock; +#define CRTCL_SECT_INIT spin_lock_init(&lock) +#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag) + +struct md5_ctx { + u32 hash[MD5_HASH_WORDS]; + u32 block[MD5_BLOCK_WORDS]; + u64 byte_count; +}; + +extern int disable_deudma; + +/*! \fn static u32 endian_swap(u32 input) + * \ingroup IFX_MD5_FUNCTIONS + * \brief perform dword level endian swap + * \param input value of dword that requires to be swapped +*/ +static u32 endian_swap(u32 input) +{ + u8 *ptr = (u8 *)&input; + + return ((ptr[3] << 24) | (ptr[2] << 16) | (ptr[1] << 8) | ptr[0]); +} + +/*! \fn static void md5_transform(u32 *hash, u32 const *in) + * \ingroup IFX_MD5_FUNCTIONS + * \brief main interface to md5 hardware + * \param hash current hash value + * \param in 64-byte block of input +*/ +static void md5_transform(u32 *hash, u32 const *in) +{ + int i; + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + ulong flag; + + CRTCL_SECT_START; + + for (i = 0; i < 16; i++) { + hashs->MR = endian_swap(in[i]); + }; + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + + CRTCL_SECT_END; +} + +/*! \fn static inline void md5_transform_helper(struct md5_ctx *ctx) + * \ingroup IFX_MD5_FUNCTIONS + * \brief interfacing function for md5_transform() + * \param ctx crypto context +*/ +static inline void md5_transform_helper(struct md5_ctx *ctx) +{ + //le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(u32)); + md5_transform(ctx->hash, ctx->block); +} + +/*! \fn static void md5_init(struct crypto_tfm *tfm) + * \ingroup IFX_MD5_FUNCTIONS + * \brief initialize md5 hardware + * \param tfm linux crypto algo transform +*/ +static void md5_init(struct crypto_tfm *tfm) +{ + struct md5_ctx *mctx = crypto_tfm_ctx(tfm); + volatile struct deu_hash_t *hash = (struct deu_hash_t *) HASH_START; + + hash->controlr.SM = 1; + hash->controlr.ALGO = 1; // 1 = md5 0 = sha1 + hash->controlr.INIT = 1; // Initialize the hash operation by writing a '1' to the INIT bit. + + mctx->byte_count = 0; +} + +/*! \fn static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) + * \ingroup IFX_MD5_FUNCTIONS + * \brief on-the-fly md5 computation + * \param tfm linux crypto algo transform + * \param data input data + * \param len size of input data +*/ +static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) +{ + struct md5_ctx *mctx = crypto_tfm_ctx(tfm); + const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); + + mctx->byte_count += len; + + if (avail > len) { + memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), + data, len); + return; + } + + memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), + data, avail); + + md5_transform_helper(mctx); + data += avail; + len -= avail; + + while (len >= sizeof(mctx->block)) { + memcpy(mctx->block, data, sizeof(mctx->block)); + md5_transform_helper(mctx); + data += sizeof(mctx->block); + len -= sizeof(mctx->block); + } + + memcpy(mctx->block, data, len); +} + +/*! \fn static void md5_final(struct crypto_tfm *tfm, u8 *out) + * \ingroup IFX_MD5_FUNCTIONS + * \brief compute final md5 value + * \param tfm linux crypto algo transform + * \param out final md5 output value +*/ +static void md5_final(struct crypto_tfm *tfm, u8 *out) +{ + struct 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); + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + u32 flag; + + *p++ = 0x80; + if (padding < 0) { + memset(p, 0x00, padding + sizeof (u64)); + md5_transform_helper(mctx); + p = (char *)mctx->block; + padding = 56; + } + + memset(p, 0, padding); + mctx->block[14] = endian_swap(mctx->byte_count << 3); + mctx->block[15] = endian_swap(mctx->byte_count >> 29); + +#if 0 + le32_to_cpu_array(mctx->block, (sizeof(mctx->block) - + sizeof(u64)) / sizeof(u32)); +#endif + + md5_transform(mctx->hash, mctx->block); + + CRTCL_SECT_START; + + *((u32 *) out + 0) = endian_swap (hashs->D1R); + *((u32 *) out + 1) = endian_swap (hashs->D2R); + *((u32 *) out + 2) = endian_swap (hashs->D3R); + *((u32 *) out + 3) = endian_swap (hashs->D4R); + + CRTCL_SECT_END; + + // Wipe context + memset(mctx, 0, sizeof(*mctx)); +} + +/* + * \brief MD5 function mappings +*/ +static struct crypto_alg ifxdeu_md5_alg = { + .cra_name = "md5", + .cra_driver_name = "ifxdeu-md5", + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = MD5_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct md5_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_md5_alg.cra_list), + .cra_u = { .digest = { + .dia_digestsize = MD5_DIGEST_SIZE, + .dia_init = md5_init, + .dia_update = md5_update, + .dia_final = md5_final } } +}; + +/*! \fn int __init ifxdeu_init_md5 (void) + * \ingroup IFX_MD5_FUNCTIONS + * \brief initialize md5 driver +*/ +int __init ifxdeu_init_md5 (void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_md5_alg))) + goto md5_err; + + CRTCL_SECT_INIT; + + printk (KERN_NOTICE "IFX DEU MD5 initialized%s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +md5_err: + printk(KERN_ERR "IFX DEU MD5 initialization failed!\n"); + return ret; +} + +/*! \fn void __exit ifxdeu_fini_md5 (void) + * \ingroup IFX_MD5_FUNCTIONS + * \brief unregister md5 driver +*/ + +void __exit ifxdeu_fini_md5 (void) +{ + crypto_unregister_alg (&ifxdeu_md5_alg); +} + diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5_hmac.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5_hmac.c new file mode 100755 index 0000000000..fcd118e310 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_md5_hmac.c @@ -0,0 +1,307 @@ +/* + * 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_md5_hmac.c + \ingroup IFX_DEU + \brief MD5-HMAC encryption deu driver file +*/ + +/*! + \defgroup IFX_MD5_HMAC_FUNCTIONS IFX_MD5_HMAC_FUNCTIONS + \ingroup IFX_DEU + \brief ifx md5-hmac driver functions +*/ + +/* Project Header files */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/crypto.h> +#include <linux/types.h> +#include <asm/byteorder.h> +#include "ifxmips_deu.h" + +#define MD5_DIGEST_SIZE 16 +#define MD5_HMAC_BLOCK_SIZE 64 +#define MD5_BLOCK_WORDS 16 +#define MD5_HASH_WORDS 4 +#define MD5_HMAC_DBN_TEMP_SIZE 1024 // size in dword, needed for dbn workaround +#define HASH_START IFX_HASH_CON + +static spinlock_t lock; +#define CRTCL_SECT_INIT spin_lock_init(&lock) +#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag) + +struct md5_hmac_ctx { + u32 hash[MD5_HASH_WORDS]; + u32 block[MD5_BLOCK_WORDS]; + u64 byte_count; + u32 dbn; + u32 temp[MD5_HMAC_DBN_TEMP_SIZE]; +}; + +extern int disable_deudma; + +/*! \fn static u32 endian_swap(u32 input) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief perform dword level endian swap + * \param input value of dword that requires to be swapped +*/ +static u32 endian_swap(u32 input) +{ + u8 *ptr = (u8 *)&input; + + return ((ptr[3] << 24) | (ptr[2] << 16) | (ptr[1] << 8) | ptr[0]); +} + +/*! \fn static void md5_hmac_transform(struct crypto_tfm *tfm, u32 const *in) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief save input block to context + * \param tfm linux crypto algo transform + * \param in 64-byte block of input +*/ +static void md5_hmac_transform(struct crypto_tfm *tfm, u32 const *in) +{ + struct md5_hmac_ctx *mctx = crypto_tfm_ctx(tfm); + + memcpy(&mctx->temp[mctx->dbn<<4], in, 64); //dbn workaround + mctx->dbn += 1; + + if ( (mctx->dbn<<4) > MD5_HMAC_DBN_TEMP_SIZE ) + { + printk("MD5_HMAC_DBN_TEMP_SIZE exceeded\n"); + } + +} + +/*! \fn int md5_hmac_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief sets md5 hmac key + * \param tfm linux crypto algo transform + * \param key input key + * \param keylen key length greater than 64 bytes IS NOT SUPPORTED +*/ +int md5_hmac_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) +{ + volatile struct deu_hash_t *hash = (struct deu_hash_t *) HASH_START; + int i, j; + u32 *in_key = (u32 *)key; + + hash->KIDX = 0x80000000; // reset all 16 words of the key to '0' + asm("sync"); + + j = 0; + for (i = 0; i < keylen; i+=4) + { + hash->KIDX = j; + asm("sync"); + hash->KEY = *((u32 *) in_key + j); + j++; + } + + return 0; +} + +/*! \fn void md5_hmac_init(struct crypto_tfm *tfm) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief initialize md5 hmac context + * \param tfm linux crypto algo transform +*/ +void md5_hmac_init(struct crypto_tfm *tfm) +{ + struct md5_hmac_ctx *mctx = crypto_tfm_ctx(tfm); + + memset(mctx, 0, sizeof(struct md5_hmac_ctx)); + mctx->dbn = 0; //dbn workaround +} + +/*! \fn void md5_hmac_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief on-the-fly md5 hmac computation + * \param tfm linux crypto algo transform + * \param data input data + * \param len size of input data +*/ +void md5_hmac_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) +{ + struct md5_hmac_ctx *mctx = crypto_tfm_ctx(tfm); + const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); + + mctx->byte_count += len; + + if (avail > len) { + memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), + data, len); + return; + } + + memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), + data, avail); + + md5_hmac_transform(tfm, mctx->block); + data += avail; + len -= avail; + + while (len >= sizeof(mctx->block)) { + memcpy(mctx->block, data, sizeof(mctx->block)); + md5_hmac_transform(tfm, mctx->block); + data += sizeof(mctx->block); + len -= sizeof(mctx->block); + } + + memcpy(mctx->block, data, len); + +} + +/*! \fn void md5_hmac_final(struct crypto_tfm *tfm, u8 *out) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief compute final md5 hmac value + * \param tfm linux crypto algo transform + * \param out final md5 hmac output value +*/ +void md5_hmac_final(struct crypto_tfm *tfm, u8 *out) +{ + struct md5_hmac_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); + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + u32 flag; + int i = 0; + int dbn; + u32 *in = &mctx->temp[0]; + + *p++ = 0x80; + if (padding < 0) { + memset(p, 0x00, padding + sizeof (u64)); + md5_hmac_transform(tfm, mctx->block); + p = (char *)mctx->block; + padding = 56; + } + + memset(p, 0, padding); + mctx->block[14] = endian_swap((mctx->byte_count + 64) << 3); // need to add 512 bit of the IPAD operation + mctx->block[15] = 0x00000000; + + md5_hmac_transform(tfm, mctx->block); + + CRTCL_SECT_START; + + printk("dbn = %d\n", mctx->dbn); + hashs->DBN = mctx->dbn; + + *IFX_HASH_CON = 0x0703002D; //khs, go, init, ndc, endi, kyue, hmen, md5 + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + +for (dbn = 0; dbn < mctx->dbn; dbn++) +{ + for (i = 0; i < 16; i++) { + hashs->MR = in[i]; + }; + + hashs->controlr.GO = 1; + asm("sync"); + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + + in += 16; +} + + +#if 1 + //wait for digest ready + while (! hashs->controlr.DGRY) { + // this will not take long + } +#endif + + *((u32 *) out + 0) = hashs->D1R; + *((u32 *) out + 1) = hashs->D2R; + *((u32 *) out + 2) = hashs->D3R; + *((u32 *) out + 3) = hashs->D4R; + *((u32 *) out + 4) = hashs->D5R; + + CRTCL_SECT_END; +} + +/* + * \brief MD5_HMAC function mappings +*/ + +static struct crypto_alg ifxdeu_md5_hmac_alg = { + .cra_name = "hmac(md5)", + .cra_driver_name = "ifxdeu-md5_hmac", + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = MD5_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct md5_hmac_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ifxdeu_md5_hmac_alg.cra_list), + .cra_u = { .digest = { + .dia_digestsize = MD5_DIGEST_SIZE, + .dia_setkey = md5_hmac_setkey, + .dia_init = md5_hmac_init, + .dia_update = md5_hmac_update, + .dia_final = md5_hmac_final } } +}; + +/*! \fn int __init ifxdeu_init_md5_hmac (void) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief initialize md5 hmac driver +*/ +int __init ifxdeu_init_md5_hmac (void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_md5_hmac_alg))) + goto md5_hmac_err; + + CRTCL_SECT_INIT; + + printk (KERN_NOTICE "IFX DEU MD5_HMAC initialized%s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +md5_hmac_err: + printk(KERN_ERR "IFX DEU MD5_HMAC initialization failed!\n"); + return ret; +} + +/** \fn void __exit ifxdeu_fini_md5_hmac (void) + * \ingroup IFX_MD5_HMAC_FUNCTIONS + * \brief unregister md5 hmac driver +*/ +void __exit ifxdeu_fini_md5_hmac (void) +{ + crypto_unregister_alg (&ifxdeu_md5_hmac_alg); +} + diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1.c new file mode 100755 index 0000000000..0802e2ccc8 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1.c @@ -0,0 +1,244 @@ +/* + * 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_sha1.c + \ingroup IFX_DEU + \brief SHA1 encryption deu driver file +*/ + +/*! + \defgroup IFX_SHA1_FUNCTIONS IFX_SHA1_FUNCTIONS + \ingroup IFX_DEU + \brief ifx deu sha1 functions +*/ + + +/* Project header */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/crypto.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <asm/scatterlist.h> +#include <asm/byteorder.h> +#include "ifxmips_deu.h" + +#define SHA1_DIGEST_SIZE 20 +#define SHA1_HMAC_BLOCK_SIZE 64 +#define HASH_START IFX_HASH_CON + +static spinlock_t lock; +#define CRTCL_SECT_INIT spin_lock_init(&lock) +#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag) + +/* + * \brief SHA1 private structure +*/ +struct sha1_ctx { + u64 count; + u32 state[5]; + u8 buffer[64]; +}; + +extern int disable_deudma; + + +/*! \fn static void sha1_transform (u32 *state, const u32 *in) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief main interface to sha1 hardware + * \param state current state + * \param in 64-byte block of input +*/ +static void sha1_transform (u32 *state, const u32 *in) +{ + int i = 0; + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + u32 flag; + + CRTCL_SECT_START; + + for (i = 0; i < 16; i++) { + hashs->MR = in[i]; + }; + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + + CRTCL_SECT_END; +} + +/*! \fn static void sha1_init(struct crypto_tfm *tfm) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief initialize sha1 hardware + * \param tfm linux crypto algo transform +*/ +static void sha1_init(struct crypto_tfm *tfm) +{ + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); + + SHA_HASH_INIT; + + sctx->count = 0; +} + +/*! \fn static void sha1_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief on-the-fly sha1 computation + * \param tfm linux crypto algo transform + * \param data input data + * \param len size of input data +*/ +static void sha1_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) +{ + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); + unsigned int i, j; + + j = (sctx->count >> 3) & 0x3f; + sctx->count += len << 3; + + if ((j + len) > 63) { + memcpy (&sctx->buffer[j], data, (i = 64 - j)); + sha1_transform (sctx->state, (const u32 *)sctx->buffer); + for (; i + 63 < len; i += 64) { + sha1_transform (sctx->state, (const u32 *)&data[i]); + } + + j = 0; + } + else + i = 0; + + memcpy (&sctx->buffer[j], &data[i], len - i); +} + +/*! \fn static void sha1_final(struct crypto_tfm *tfm, u8 *out) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief compute final sha1 value + * \param tfm linux crypto algo transform + * \param out final md5 output value +*/ +static void sha1_final(struct crypto_tfm *tfm, u8 *out) +{ + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); + u32 index, padlen; + u64 t; + u8 bits[8] = { 0, }; + static const u8 padding[64] = { 0x80, }; + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + ulong flag; + + t = sctx->count; + bits[7] = 0xff & t; + t >>= 8; + bits[6] = 0xff & t; + t >>= 8; + bits[5] = 0xff & t; + t >>= 8; + bits[4] = 0xff & t; + t >>= 8; + bits[3] = 0xff & t; + t >>= 8; + bits[2] = 0xff & t; + t >>= 8; + bits[1] = 0xff & t; + t >>= 8; + bits[0] = 0xff & t; + + /* Pad out to 56 mod 64 */ + index = (sctx->count >> 3) & 0x3f; + padlen = (index < 56) ? (56 - index) : ((64 + 56) - index); + sha1_update (tfm, padding, padlen); + + /* Append length */ + sha1_update (tfm, bits, sizeof bits); + + CRTCL_SECT_START; + + *((u32 *) out + 0) = hashs->D1R; + *((u32 *) out + 1) = hashs->D2R; + *((u32 *) out + 2) = hashs->D3R; + *((u32 *) out + 3) = hashs->D4R; + *((u32 *) out + 4) = hashs->D5R; + + CRTCL_SECT_END; + + // Wipe context + memset (sctx, 0, sizeof *sctx); +} + +/* + * \brief SHA1 function mappings +*/ +struct crypto_alg ifxdeu_sha1_alg = { + .cra_name = "sha1", + .cra_driver_name= "ifxdeu-sha1", + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct sha1_ctx), + .cra_module = THIS_MODULE, + .cra_alignmask = 3, + .cra_list = LIST_HEAD_INIT(ifxdeu_sha1_alg.cra_list), + .cra_u = { .digest = { + .dia_digestsize = SHA1_DIGEST_SIZE, + .dia_init = sha1_init, + .dia_update = sha1_update, + .dia_final = sha1_final } } +}; + +/*! \fn int __init ifxdeu_init_sha1 (void) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief initialize sha1 driver +*/ +int __init ifxdeu_init_sha1 (void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_sha1_alg))) + goto sha1_err; + + CRTCL_SECT_INIT; + + printk (KERN_NOTICE "IFX DEU SHA1 initialized%s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +sha1_err: + printk(KERN_ERR "IFX DEU SHA1 initialization failed!\n"); + return ret; +} + +/*! \fn void __exit ifxdeu_fini_sha1 (void) + * \ingroup IFX_SHA1_FUNCTIONS + * \brief unregister sha1 driver +*/ +void __exit ifxdeu_fini_sha1 (void) +{ + crypto_unregister_alg (&ifxdeu_sha1_alg); +} diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1_hmac.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1_hmac.c new file mode 100755 index 0000000000..59f0854c5c --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_sha1_hmac.c @@ -0,0 +1,308 @@ +/* + * 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_sha1_hmac.c + \ingroup IFX_DEU + \brief SHA1-HMAC deu driver file +*/ + +/*! + \defgroup IFX_SHA1_HMAC_FUNCTIONS IFX_SHA1_HMAC_FUNCTIONS + \ingroup IFX_DEU + \brief ifx sha1 hmac functions +*/ + + +/* Project header */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/crypto.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <asm/scatterlist.h> +#include <asm/byteorder.h> +#include <linux/delay.h> +#include "ifxmips_deu.h" + +#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_SHA1_HMAC + +#define SHA1_DIGEST_SIZE 20 +#define SHA1_HMAC_BLOCK_SIZE 64 +#define SHA1_HMAC_DBN_TEMP_SIZE 1024 // size in dword, needed for dbn workaround +#define HASH_START IFX_HASH_CON + +static spinlock_t lock; +#define CRTCL_SECT_INIT spin_lock_init(&lock) +#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag) +#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag) + +struct sha1_hmac_ctx { + u64 count; + u32 state[5]; + u8 buffer[64]; + u32 dbn; + u32 temp[SHA1_HMAC_DBN_TEMP_SIZE]; +}; + +extern int disable_deudma; + +/*! \fn static void sha1_hmac_transform(struct crypto_tfm *tfm, u32 const *in) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief save input block to context + * \param tfm linux crypto algo transform + * \param in 64-byte block of input +*/ +static void sha1_hmac_transform(struct crypto_tfm *tfm, u32 const *in) +{ + struct sha1_hmac_ctx *sctx = crypto_tfm_ctx(tfm); + + memcpy(&sctx->temp[sctx->dbn<<4], in, 64); //dbn workaround + sctx->dbn += 1; + + if ( (sctx->dbn<<4) > SHA1_HMAC_DBN_TEMP_SIZE ) + { + printk("SHA1_HMAC_DBN_TEMP_SIZE exceeded\n"); + } + +} + +/*! \fn int sha1_hmac_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief sets sha1 hmac key + * \param tfm linux crypto algo transform + * \param key input key + * \param keylen key length greater than 64 bytes IS NOT SUPPORTED +*/ +int sha1_hmac_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) +{ + volatile struct deu_hash_t *hash = (struct deu_hash_t *) HASH_START; + int i, j; + u32 *in_key = (u32 *)key; + + hash->KIDX = 0x80000000; // reset all 16 words of the key to '0' + asm("sync"); + + j = 0; + for (i = 0; i < keylen; i+=4) + { + hash->KIDX = j; + asm("sync"); + hash->KEY = *((u32 *) in_key + j); + j++; + } + + return 0; +} + +/*! \fn void sha1_hmac_init(struct crypto_tfm *tfm) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief initialize sha1 hmac context + * \param tfm linux crypto algo transform +*/ +void sha1_hmac_init(struct crypto_tfm *tfm) +{ + struct sha1_hmac_ctx *sctx = crypto_tfm_ctx(tfm); + + memset(sctx, 0, sizeof(struct sha1_hmac_ctx)); + sctx->dbn = 0; //dbn workaround +} + +/*! \fn static void sha1_hmac_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief on-the-fly sha1 hmac computation + * \param tfm linux crypto algo transform + * \param data input data + * \param len size of input data +*/ +static void sha1_hmac_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) +{ + struct sha1_hmac_ctx *sctx = crypto_tfm_ctx(tfm); + unsigned int i, j; + + j = (sctx->count >> 3) & 0x3f; + sctx->count += len << 3; + //printk("sctx->count = %d\n", (sctx->count >> 3)); + + if ((j + len) > 63) { + memcpy (&sctx->buffer[j], data, (i = 64 - j)); + sha1_hmac_transform (tfm, (const u32 *)sctx->buffer); + for (; i + 63 < len; i += 64) { + sha1_hmac_transform (tfm, (const u32 *)&data[i]); + } + + j = 0; + } + else + i = 0; + + memcpy (&sctx->buffer[j], &data[i], len - i); +} + +/*! \fn static void sha1_hmac_final(struct crypto_tfm *tfm, u8 *out) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief ompute final sha1 hmac value + * \param tfm linux crypto algo transform + * \param out final sha1 hmac output value +*/ +static void sha1_hmac_final(struct crypto_tfm *tfm, u8 *out) +{ + struct sha1_hmac_ctx *sctx = crypto_tfm_ctx(tfm); + u32 index, padlen; + u64 t; + u8 bits[8] = { 0, }; + static const u8 padding[64] = { 0x80, }; + volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START; + ulong flag; + int i = 0; + int dbn; + u32 *in = &sctx->temp[0]; + + t = sctx->count + 512; // need to add 512 bit of the IPAD operation + bits[7] = 0xff & t; + t >>= 8; + bits[6] = 0xff & t; + t >>= 8; + bits[5] = 0xff & t; + t >>= 8; + bits[4] = 0xff & t; + t >>= 8; + bits[3] = 0xff & t; + t >>= 8; + bits[2] = 0xff & t; + t >>= 8; + bits[1] = 0xff & t; + t >>= 8; + bits[0] = 0xff & t; + + /* Pad out to 56 mod 64 */ + index = (sctx->count >> 3) & 0x3f; + padlen = (index < 56) ? (56 - index) : ((64 + 56) - index); + sha1_hmac_update (tfm, padding, padlen); + + /* Append length */ + sha1_hmac_update (tfm, bits, sizeof bits); + + CRTCL_SECT_START; + + hashs->DBN = sctx->dbn; + + //for vr9 change, ENDI = 1 + *IFX_HASH_CON = HASH_CON_VALUE; + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + + for (dbn = 0; dbn < sctx->dbn; dbn++) + { + for (i = 0; i < 16; i++) { + hashs->MR = in[i]; + }; + + hashs->controlr.GO = 1; + asm("sync"); + + //wait for processing + while (hashs->controlr.BSY) { + // this will not take long + } + + in += 16; +} + + +#if 1 + //wait for digest ready + while (! hashs->controlr.DGRY) { + // this will not take long + } +#endif + + *((u32 *) out + 0) = hashs->D1R; + *((u32 *) out + 1) = hashs->D2R; + *((u32 *) out + 2) = hashs->D3R; + *((u32 *) out + 3) = hashs->D4R; + *((u32 *) out + 4) = hashs->D5R; + + CRTCL_SECT_END; +} + +/* + * \brief SHA1-HMAC function mappings +*/ + +struct crypto_alg ifxdeu_sha1_hmac_alg = { + .cra_name = "hmac(sha1)", + .cra_driver_name= "ifxdeu-sha1_hmac", + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct sha1_hmac_ctx), + .cra_module = THIS_MODULE, + .cra_alignmask = 3, + .cra_list = LIST_HEAD_INIT(ifxdeu_sha1_hmac_alg.cra_list), + .cra_u = { .digest = { + .dia_digestsize = SHA1_DIGEST_SIZE, + .dia_setkey = sha1_hmac_setkey, + .dia_init = sha1_hmac_init, + .dia_update = sha1_hmac_update, + .dia_final = sha1_hmac_final } } +}; + + +/*! \fn int __init ifxdeu_init_sha1_hmac (void) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief initialize sha1 hmac driver +*/ +int __init ifxdeu_init_sha1_hmac (void) +{ + int ret; + + if ((ret = crypto_register_alg(&ifxdeu_sha1_hmac_alg))) + goto sha1_err; + + CRTCL_SECT_INIT; + + printk (KERN_NOTICE "IFX DEU SHA1_HMAC initialized%s.\n", disable_deudma ? "" : " (DMA)"); + return ret; + +sha1_err: + printk(KERN_ERR "IFX DEU SHA1_HMAC initialization failed!\n"); + return ret; +} + +/*! \fn void __exit ifxdeu_fini_sha1_hmac (void) + * \ingroup IFX_SHA1_HMAC_FUNCTIONS + * \brief unregister sha1 hmac driver +*/ +void __exit ifxdeu_fini_sha1_hmac (void) +{ + crypto_unregister_alg (&ifxdeu_sha1_hmac_alg); +} + +#endif |