232 lines
7.3 KiB
C
232 lines
7.3 KiB
C
/*
|
|
* Copyright 2017 NXP
|
|
* All rights reserved.
|
|
*
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef _FSL_BEE_H_
|
|
#define _FSL_BEE_H_
|
|
|
|
#include "fsl_common.h"
|
|
|
|
/*!
|
|
* @addtogroup bee
|
|
* @{
|
|
*/
|
|
|
|
/*******************************************************************************
|
|
* Definitions
|
|
*******************************************************************************/
|
|
|
|
/*! @name Driver version */
|
|
/*@{*/
|
|
/*! @brief BEE driver version. Version 2.0.1.
|
|
*
|
|
* Current version: 2.0.1
|
|
*
|
|
* Change log:
|
|
* - Version 2.0.1
|
|
* - Initial version
|
|
*/
|
|
#define FSL_BEE_DRIVER_VERSION (MAKE_VERSION(2, 0, 1))
|
|
/*@}*/
|
|
|
|
typedef enum _bee_aes_mode
|
|
{
|
|
kBEE_AesEcbMode = 0U, /*!< AES ECB Mode */
|
|
kBEE_AesCtrMode = 1U /*!< AES CTR Mode */
|
|
} bee_aes_mode_t;
|
|
|
|
typedef enum _bee_region
|
|
{
|
|
kBEE_Region0 = 0U, /*!< BEE region 0 */
|
|
kBEE_Region1 = 1U /*!< BEE region 1 */
|
|
} bee_region_t;
|
|
|
|
typedef enum _bee_ac_prot_enable
|
|
{
|
|
kBEE_AccessProtDisabled = 0U, /*!< BEE access permission control disabled */
|
|
kBEE_AccessProtEnabled = 1U /*!< BEE access permission control enabled */
|
|
} bee_ac_prot_enable;
|
|
|
|
typedef enum _bee_endian_swap_enable
|
|
{
|
|
kBEE_EndianSwapDisabled = 1U, /*!< BEE endian swap disabled */
|
|
kBEE_EndianSwapEnabled = 0U /*!< BEE endian swap enabled */
|
|
} bee_endian_swap_enable;
|
|
|
|
typedef enum _bee_security_level
|
|
{
|
|
kBEE_SecurityLevel0 = 0U, /*!< BEE security level 0 */
|
|
kBEE_SecurityLevel1 = 1U, /*!< BEE security level 1 */
|
|
kBEE_SecurityLevel2 = 2U, /*!< BEE security level 2 */
|
|
kBEE_SecurityLevel3 = 3U /*!< BEE security level 3 */
|
|
} bee_security_level;
|
|
|
|
typedef enum _bee_status_flags
|
|
{
|
|
kBEE_DisableAbortFlag = 1U, /*!< Disable abort flag. */
|
|
kBEE_Reg0ReadSecViolation = 2U, /*!< Region-0 read channel security violation */
|
|
kBEE_ReadIllegalAccess = 4U, /*!< Read channel illegal access detected */
|
|
kBEE_Reg1ReadSecViolation = 8U, /*!< Region-1 read channel security violation */
|
|
kBEE_Reg0AccessViolation = 16U, /*!< Protected region-0 access violation */
|
|
kBEE_Reg1AccessViolation = 32U, /*!< Protected region-1 access violation */
|
|
kBEE_IdleFlag = BEE_STATUS_BEE_IDLE_MASK /*!< Idle flag */
|
|
} bee_status_flags_t;
|
|
|
|
/*! @brief BEE region configuration structure. */
|
|
typedef struct _bee_region_config
|
|
{
|
|
bee_aes_mode_t region0Mode; /*!< AES mode used for encryption/decryption for region 0 */
|
|
bee_aes_mode_t region1Mode; /*!< AES mode used for encryption/decryption for region 1 */
|
|
uint32_t region0AddrOffset; /*!< Region 0 address offset */
|
|
uint32_t region1AddrOffset; /*!< Region 1 address offset */
|
|
bee_security_level region0SecLevel; /*!< Region 0 security level */
|
|
bee_security_level region1SecLevel; /*!< Region 1 security level */
|
|
uint32_t region1Bot; /*!< Region 1 bottom address */
|
|
uint32_t region1Top; /*!< Region 1 top address */
|
|
bee_ac_prot_enable accessPermission; /*!< Access permission control enable/disable */
|
|
bee_endian_swap_enable endianSwapEn; /*!< Endian swap enable/disable */
|
|
} bee_region_config_t;
|
|
|
|
/*******************************************************************************
|
|
* API
|
|
******************************************************************************/
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*!
|
|
* @brief Resets BEE module to factory default values.
|
|
*
|
|
* This function performs hardware reset of BEE module. Attributes and keys from software for both regions are cleared.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
*/
|
|
void BEE_Init(BEE_Type *base);
|
|
|
|
/*!
|
|
* @brief Resets BEE module, clears keys for both regions and disables clock to the BEE.
|
|
*
|
|
* This function performs hardware reset of BEE module and disables clocks. Attributes and keys from software for both
|
|
* regions are cleared.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
*/
|
|
void BEE_Deinit(BEE_Type *base);
|
|
|
|
/*!
|
|
* @brief Enables BEE decryption.
|
|
*
|
|
* This function enables decryption using BEE.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
*/
|
|
static inline void BEE_Enable(BEE_Type *base)
|
|
{
|
|
base->CTRL |= BEE_CTRL_BEE_ENABLE_MASK;
|
|
}
|
|
|
|
/*!
|
|
* @brief Disables BEE decryption.
|
|
*
|
|
* This function disables decryption using BEE.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
*/
|
|
static inline void BEE_Disable(BEE_Type *base)
|
|
{
|
|
base->CTRL &= ~BEE_CTRL_BEE_ENABLE_MASK;
|
|
}
|
|
|
|
/*!
|
|
* @brief Loads default values to the BEE region configuration structure.
|
|
*
|
|
* Loads default values to the BEE region configuration structure. The default values are as follows:
|
|
* @code
|
|
* config->region0Mode = kBEE_AesCtrMode;
|
|
* config->region1Mode = kBEE_AesCtrMode;
|
|
* config->region0AddrOffset = 0U;
|
|
* config->region1AddrOffset = 0U;
|
|
* config->region0SecLevel = kBEE_SecurityLevel3;
|
|
* config->region1SecLevel = kBEE_SecurityLevel3;
|
|
* config->region1Bot = 0U;
|
|
* config->region1Top = 0U;
|
|
* config->accessPermission = kBEE_AccessProtDisabled;
|
|
* config->endianSwapEn = kBEE_EndianSwapEnabled;
|
|
* @endcode
|
|
*
|
|
* @param config Configuration structure for BEE peripheral.
|
|
*/
|
|
void BEE_GetDefaultConfig(bee_region_config_t *config);
|
|
|
|
/*!
|
|
* @brief Sets BEE configuration.
|
|
*
|
|
* This function sets BEE peripheral and BEE region settings accorging to given configuration structure.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
* @param config Configuration structure for BEE.
|
|
*/
|
|
void BEE_SetConfig(BEE_Type *base, const bee_region_config_t *config);
|
|
|
|
/*!
|
|
* @brief Loads the AES key for selected region into BEE key registers.
|
|
*
|
|
* This function loads given AES key to BEE register for the given region.
|
|
* The key must be 32-bit aligned and stored in little-endian format.
|
|
*
|
|
* Please note, that eFuse BEE_KEYx_SEL must be set accordingly to be able to load and use key loaded in BEE registers.
|
|
* Otherwise, key cannot loaded and BEE will use key from OTPMK or SW_GP2.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
* @param region Selection of the BEE region to be configured.
|
|
* @param key AES key (in little-endian format).
|
|
* @param keySize Size of AES key.
|
|
*/
|
|
status_t BEE_SetRegionKey(
|
|
BEE_Type *base, bee_region_t region, const uint8_t *key, size_t keySize);
|
|
|
|
/*!
|
|
* @brief Loads the nonce for selected region into BEE nonce registers.
|
|
*
|
|
* This function loads given nonce(only AES CTR mode) to BEE register for the given region.
|
|
* The nonce must be 32-bit aligned and stored in little-endian format.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
* @param region Selection of the BEE region to be configured.
|
|
* @param nonce AES nonce (in little-endian format).
|
|
* @param nonceSize Size of AES nonce.
|
|
*/
|
|
status_t BEE_SetRegionNonce(
|
|
BEE_Type *base, bee_region_t region, const uint8_t *nonce, size_t nonceSize);
|
|
|
|
/*!
|
|
* @brief Gets the BEE status flags.
|
|
*
|
|
* This function returns status of BEE peripheral.
|
|
*
|
|
* @param base BEE peripheral address.
|
|
*
|
|
* @return The status flags. This is the logical OR of members of the
|
|
* enumeration ::bee_status_flags_t
|
|
*/
|
|
uint32_t BEE_GetStatusFlags(BEE_Type *base);
|
|
|
|
/*!
|
|
* @brief Clears the BEE status flags.
|
|
*
|
|
* @param base BEE peripheral base address.
|
|
* @param mask The status flags to clear. This is a logical OR of members of the
|
|
* enumeration ::bee_status_flags_t
|
|
*/
|
|
void BEE_ClearStatusFlags(BEE_Type *base, uint32_t mask);
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* _FSL_BEE_H_ */
|