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xtensa/esp32: Add AES hardware accelerator driver

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This commit is contained in:
Dong Heng 2020-12-24 19:59:21 +08:00 committed by Alan Carvalho de Assis
parent a2f82542ef
commit 4bbc17454c
8 changed files with 1406 additions and 0 deletions
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13
arch/xtensa/src/esp32/Kconfig
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@ -280,6 +280,10 @@ config ESP32_I2C1
select I2C
select I2C_DRIVER
config ESP32_AES_ACCELERATOR
bool "AES Accelerator"
default n
endmenu # ESP32 Peripheral Selection
menu "Memory Configuration"
@ -759,4 +763,13 @@ config ESP32_PARTITION_MOUNT
endmenu # ESP32_PARTITION
menu "AES accelerate"
depends on ESP32_AES_ACCELERATOR
config ESP32_AES_ACCELERATOR_TEST
bool "AES driver test"
default n
endmenu # ESP32_AES_ACCELERATOR
endif # ARCH_CHIP_ESP32

4
arch/xtensa/src/esp32/Make.defs
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@ -178,6 +178,10 @@ ifeq ($(CONFIG_ESP32_RT_TIMER),y)
CHIP_CSRCS += esp32_rt_timer.c
endif
ifeq ($(CONFIG_ESP32_AES_ACCELERATOR),y)
CHIP_CSRCS += esp32_aes.c
endif
ifeq ($(CONFIG_ESP32_WIRELESS),y)
WIRELESS_DRV_UNPACK = esp-wireless-drivers-3rdparty
WIRELESS_DRV_ID = 4a352be

1049
arch/xtensa/src/esp32/esp32_aes.c Normal file
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File diff suppressed because it is too large Load Diff

216
arch/xtensa/src/esp32/esp32_aes.h Normal file
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@ -0,0 +1,216 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_aes.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32_ESP32_AES_H
#define __ARCH_XTENSA_SRC_ESP32_ESP32_AES_H
#include <nuttx/config.h>
#include <stdint.h>
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Types
****************************************************************************/
/* AES private description */
struct esp32_aes_s
{
uint32_t key[8]; /* Key data value */
uint16_t keybits; /* Key data bits */
};
/* AES XTS private description */
struct esp32_aes_xts_s
{
struct esp32_aes_s crypt; /* AES block encryption/decryption */
struct esp32_aes_s tweak; /* AES tweak encryption/decryption */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp32_aes_ecb_cypher
*
* Description:
* Process AES ECB encryption/decryption.
*
* Input Parameters:
* aes - AES object data pointer
* encrypt - True: encryption mode; False: decryption mode
* input - Input data pointer
* output - Output buffer pointer
* size - Data size in bytes
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_ecb_cypher(struct esp32_aes_s *aes, bool encrypt,
const void *input, void *output, uint32_t size);
/****************************************************************************
* Name: esp32_aes_cbc_cypher
*
* Description:
* Process AES CBC encryption/decryption.
*
* Input Parameters:
* aes - AES object data pointer
* encrypt - True: encryption mode; False: decryption mode
* ivptr - Initialization vector pointer
* input - Input data pointer
* output - Output buffer pointer
* size - Data size in bytes
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_cbc_cypher(struct esp32_aes_s *aes, bool encrypt, void *ivptr,
const void *input, void *output, uint32_t size);
/****************************************************************************
* Name: esp32_aes_ctr_cypher
*
* Description:
* Process AES CTR encryption/decryption.
*
* Input Parameters:
* aes - AES object data pointer
* offptr - Offset buffer pointer
* cntptr - Counter buffer pointer
* cacheptr - Counter calculation buffer pointer
* input - Input data pointer
* output - Output buffer pointer
* size - Data size in bytes
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_ctr_cypher(struct esp32_aes_s *aes, uint32_t *offptr,
void *cntptr, void *cacheptr, const void *input,
void *output, uint32_t size);
/****************************************************************************
* Name: esp32_aes_xts_cypher
*
* Description:
* Process AES XTS encryption/decryption.
*
* Input Parameters:
* aes - AES object data pointer
* encrypt - True: encryption mode; False: decryption mode
* unitptr - Unit data buffer pointer
* input - Input data pointer
* output - Output buffer pointer
* size - Data size in bytes
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_xts_cypher(struct esp32_aes_xts_s *aes, bool encrypt,
void *unitptr, const void *input, void *output,
uint32_t size);
/****************************************************************************
* Name: esp32_aes_setkey
*
* Description:
* Configurate AES key.
*
* Input Parameters:
* aes - AES object data pointer
* keyptr - Key data pointer
* keybits - Key data bits
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_setkey(struct esp32_aes_s *aes, const void *keyptr,
uint16_t keybits);
/****************************************************************************
* Name: esp32_aes_xts_setkey
*
* Description:
* Configurate AES XTS key.
*
* Input Parameters:
* aes - AES object data pointer
* keyptr - Key data pointer
* keybits - Key data bits
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_xts_setkey(struct esp32_aes_xts_s *aes, const void *keyptr,
uint16_t keybits);
/****************************************************************************
* Name: esp32_aes_init
*
* Description:
* Initialize ESP32 AES hardware.
*
* Input Parameters:
* None
*
* Returned Value:
* OK is returned on success. Otherwise, a negated errno value is returned.
*
****************************************************************************/
int esp32_aes_init(void);
#ifdef __cplusplus
}
#endif
#undef EXTERN
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_XTENSA_SRC_ESP32_ESP32_AES_H */

47
arch/xtensa/src/esp32/hardware/esp32_aes.h Normal file
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@ -0,0 +1,47 @@
/****************************************************************************
* arch/xtensa/src/esp32/hardware/esp32_aes.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32_HARDWARE_ESP32_AES_H
#define __ARCH_XTENSA_SRC_ESP32_HARDWARE_ESP32_AES_H
/* AES acceleration registers */
#define DR_REG_AES_BASE (0x3ff01000)
#define AES_START_REG ((DR_REG_AES_BASE) + 0x00)
#define AES_IDLE_REG ((DR_REG_AES_BASE) + 0x04)
#define AES_MODE_REG ((DR_REG_AES_BASE) + 0x08)
#define AES_KEY_BASE ((DR_REG_AES_BASE) + 0x10)
#define AES_TEXT_BASE ((DR_REG_AES_BASE) + 0x30)
#define AES_ENDIAN ((DR_REG_AES_BASE) + 0x40)
/* AES start register */
#define AES_START_OPT (BIT(0))
/* AES idle register */
#define AES_IDLE_STATE (BIT(0))
/* AES mode register */
#define AES_MODE_DECRYPT (BIT(2))
#endif /* __ARCH_XTENSA_SRC_ESP32_HARDWARE_ESP32_AES_H */

8
arch/xtensa/src/esp32/hardware/esp32_dport.h
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@ -111,6 +111,10 @@
/* DPORT_PERI_CLK_EN : R/W ;bitpos:[31:0] ;default: 32'h0 ; */
#define DPORT_PERI_CLK_EN_AES (1 << 0)
#define DPORT_PERI_CLK_EN_SHA (1 << 1)
#define DPORT_PERI_CLK_EN_RSA (1 << 2)
#define DPORT_PERI_CLK_EN 0xFFFFFFFF
#define DPORT_PERI_CLK_EN_M ((DPORT_PERI_CLK_EN_V)<<(DPORT_PERI_CLK_EN_S))
#define DPORT_PERI_CLK_EN_V 0xFFFFFFFF
@ -120,6 +124,10 @@
/* DPORT_PERI_RST_EN : R/W ;bitpos:[31:0] ;default: 32'h0 ; */
#define DPORT_PERI_RST_EN_AES (1 << 0)
#define DPORT_PERI_RST_EN_SHA (1 << 1)
#define DPORT_PERI_RST_EN_RSA (1 << 2)
#define DPORT_PERI_RST_EN 0xFFFFFFFF
#define DPORT_PERI_RST_EN_M ((DPORT_PERI_RST_EN_V)<<(DPORT_PERI_RST_EN_S))
#define DPORT_PERI_RST_EN_V 0xFFFFFFFF

56
boards/xtensa/esp32/esp32-devkitc/configs/aes/defconfig Normal file
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@ -0,0 +1,56 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_ARCH_LEDS is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
CONFIG_ARCH="xtensa"
CONFIG_ARCH_BOARD="esp32-devkitc"
CONFIG_ARCH_BOARD_ESP32_DEVKITC=y
CONFIG_ARCH_CHIP="esp32"
CONFIG_ARCH_CHIP_ESP32=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_ALGTEST=y
CONFIG_CRYPTO_CRYPTODEV=y
CONFIG_CRYPTO_SW_AES=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_FEATURES=y
CONFIG_ESP32_AES_ACCELERATOR=y
CONFIG_ESP32_AES_ACCELERATOR_TEST=y
CONFIG_ESP32_UART0=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INTELHEX_BINARY=y
CONFIG_MAX_TASKS=16
CONFIG_MM_REGIONS=2
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_NSH=y
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_USER_ENTRYPOINT="esp32_aes_main"

13
boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c
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@ -73,6 +73,10 @@
# include "esp32_board_wdt.h"
#endif
#ifdef CONFIG_ESP32_AES_ACCELERATOR
# include "esp32_aes.h"
#endif
#include "esp32-devkitc.h"
/****************************************************************************
@ -148,6 +152,15 @@ int esp32_bringup(void)
#endif
#ifdef CONFIG_ESP32_AES_ACCELERATOR
ret = esp32_aes_init();
if (ret < 0)
{
syslog(LOG_ERR,
"ERROR: Failed to initialize AES: %d\n", ret);
}
#endif
#if defined(CONFIG_ESP32_SPIRAM) && \
defined(CONFIG_ESP32_SPIRAM_BANKSWITCH_ENABLE)
ret = esp_himem_init();