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479 lines
16 KiB
479 lines
16 KiB
/*
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* Copyright (c) 2018 - 2019, Nordic Semiconductor ASA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef NRF_CCM_H__
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#define NRF_CCM_H__
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#include <nrfx.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @defgroup nrf_ccm_hal AES CCM HAL
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* @{
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* @ingroup nrf_ccm
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* @brief Hardware access layer for managing the AES CCM peripheral.
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*/
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/** @brief CCM tasks. */
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typedef enum
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{
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NRF_CCM_TASK_KSGEN = offsetof(NRF_CCM_Type, TASKS_KSGEN), ///< Start generation of key-stream.
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NRF_CCM_TASK_CRYPT = offsetof(NRF_CCM_Type, TASKS_CRYPT), ///< Start encryption/decryption.
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NRF_CCM_TASK_STOP = offsetof(NRF_CCM_Type, TASKS_STOP), ///< Stop encryption/decryption.
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#if defined(CCM_RATEOVERRIDE_RATEOVERRIDE_Pos) || defined(__NRFX_DOXYGEN__)
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NRF_CCM_TASK_RATEOVERRIDE = offsetof(NRF_CCM_Type, TASKS_RATEOVERRIDE), ///< Override DATARATE setting in MODE register.
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#endif
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} nrf_ccm_task_t;
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/** @brief CCM events. */
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typedef enum
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{
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NRF_CCM_EVENT_ENDKSGEN = offsetof(NRF_CCM_Type, EVENTS_ENDKSGEN), ///< Keystream generation complete.
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NRF_CCM_EVENT_ENDCRYPT = offsetof(NRF_CCM_Type, EVENTS_ENDCRYPT), ///< Encrypt/decrypt complete.
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NRF_CCM_EVENT_ERROR = offsetof(NRF_CCM_Type, EVENTS_ERROR), ///< CCM error event.
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} nrf_ccm_event_t;
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/** @brief CCM interrupts. */
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typedef enum
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{
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NRF_CCM_INT_ENDKSGEN_MASK = CCM_INTENSET_ENDKSGEN_Msk, ///< Interrupt on ENDKSGEN event.
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NRF_CCM_INT_ENDCRYPT_MASK = CCM_INTENSET_ENDCRYPT_Msk, ///< Interrupt on ENDCRYPT event.
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NRF_CCM_INT_ERROR_MASK = CCM_INTENSET_ERROR_Msk, ///< Interrupt on ERROR event.
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} nrf_ccm_int_mask_t;
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/** @brief CCM modes of operation. */
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typedef enum
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{
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NRF_CCM_MODE_ENCRYPTION = CCM_MODE_MODE_Encryption, ///< Encryption mode.
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NRF_CCM_MODE_DECRYPTION = CCM_MODE_MODE_Decryption, ///< Decryption mode.
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} nrf_ccm_mode_t;
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#if defined(CCM_MODE_DATARATE_Pos) || defined(__NRFX_DOXYGEN__)
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/** @brief CCM data rates. */
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typedef enum
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{
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NRF_CCM_DATARATE_1M = CCM_MODE_DATARATE_1Mbit, ///< 1 Mbps.
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NRF_CCM_DATARATE_2M = CCM_MODE_DATARATE_2Mbit, ///< 2 Mbps.
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#if defined(CCM_MODE_DATARATE_125Kbps) || defined(__NRFX_DOXYGEN__)
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NRF_CCM_DATARATE_125K = CCM_MODE_DATARATE_125Kbps, ///< 125 Kbps.
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#endif
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#if defined(CCM_MODE_DATARATE_500Kbps) || defined(__NRFX_DOXYGEN__)
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NRF_CCM_DATARATE_500K = CCM_MODE_DATARATE_500Kbps, ///< 500 Kbps.
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#endif
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} nrf_ccm_datarate_t;
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#endif // defined(CCM_MODE_DATARATE_Pos) || defined(__NRFX_DOXYGEN__)
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#if defined(CCM_MODE_LENGTH_Pos) || defined(__NRFX_DOXYGEN__)
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/** @brief CCM packet length options. */
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typedef enum
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{
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NRF_CCM_LENGTH_DEFAULT = CCM_MODE_LENGTH_Default, ///< Default length.
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NRF_CCM_LENGTH_EXTENDED = CCM_MODE_LENGTH_Extended, ///< Extended length.
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} nrf_ccm_length_t;
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#endif // defined(CCM_MODE_LENGTH_Pos) || defined(__NRFX_DOXYGEN__)
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/** @brief CCM configuration. */
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typedef struct {
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nrf_ccm_mode_t mode; ///< Operation mode.
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#if defined(CCM_MODE_DATARATE_Pos) || defined(__NRFX_DOXYGEN__)
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nrf_ccm_datarate_t datarate; ///< Data rate.
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#endif
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#if defined(CCM_MODE_LENGTH_Pos) || defined(__NRFX_DOXYGEN__)
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nrf_ccm_length_t length; ///< Lenght of the CCM packet.
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#endif
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} nrf_ccm_config_t;
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/**
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* @brief Function for activating a specific CCM task.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] task Task to be activated.
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*/
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__STATIC_INLINE void nrf_ccm_task_trigger(NRF_CCM_Type * p_reg,
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nrf_ccm_task_t task);
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/**
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* @brief Function for getting the address of a specific CCM task register.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] task Requested task.
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*
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* @return Address of the specified task register.
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*/
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__STATIC_INLINE uint32_t nrf_ccm_task_address_get(NRF_CCM_Type const * p_reg,
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nrf_ccm_task_t task);
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/**
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* @brief Function for clearing a specific CCM event.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] event Event to clear.
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*/
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__STATIC_INLINE void nrf_ccm_event_clear(NRF_CCM_Type * p_reg,
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nrf_ccm_event_t event);
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/**
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* @brief Function for retrieving the state of a specific CCM event.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] event Event to be checked.
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*
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* @retval true The event has been generated.
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* @retval false The event has not been generated.
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*/
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__STATIC_INLINE bool nrf_ccm_event_check(NRF_CCM_Type const * p_reg,
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nrf_ccm_event_t event);
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/**
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* @brief Function for getting the address of a specific CCM event register.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] event Requested event.
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*
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* @return Address of the specified event register.
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*/
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__STATIC_INLINE uint32_t nrf_ccm_event_address_get(NRF_CCM_Type const * p_reg,
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nrf_ccm_event_t event);
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/**
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* @brief Function for enabling specified interrupts.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] mask Interrupts to be enabled.
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*/
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__STATIC_INLINE void nrf_ccm_int_enable(NRF_CCM_Type * p_reg, uint32_t mask);
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/**
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* @brief Function for disabling specified interrupts.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] mask Interrupts to be disabled.
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*/
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__STATIC_INLINE void nrf_ccm_int_disable(NRF_CCM_Type * p_reg, uint32_t mask);
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/**
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* @brief Function for retrieving the state of a given interrupt.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] ccm_int Interrupt to be checked.
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*
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* @retval true The interrupt is enabled.
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* @retval false The interrupt is not enabled.
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*/
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__STATIC_INLINE bool nrf_ccm_int_enable_check(NRF_CCM_Type const * p_reg,
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nrf_ccm_int_mask_t ccm_int);
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/**
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* @brief Function for enabling the CCM peripheral.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*/
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__STATIC_INLINE void nrf_ccm_enable(NRF_CCM_Type * p_reg);
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/**
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* @brief Function for disabling the CCM peripheral.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*/
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__STATIC_INLINE void nrf_ccm_disable(NRF_CCM_Type * p_reg);
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/**
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* @brief Function for setting the CCM peripheral configuration.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] p_config Pointer to the structure with configuration to be set.
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*/
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__STATIC_INLINE void nrf_ccm_configure(NRF_CCM_Type * p_reg,
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nrf_ccm_config_t const * p_config);
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#if defined(CCM_MAXPACKETSIZE_MAXPACKETSIZE_Pos) || defined(__NRFX_DOXYGEN__)
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/**
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* @brief Function for setting the length of key-stream generated
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* when the packet length is configured as extended.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] size Maximum length of the key-stream.
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*/
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__STATIC_INLINE void nrf_ccm_maxpacketsize_set(NRF_CCM_Type * p_reg,
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uint8_t size);
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#endif // defined(CCM_MAXPACKETSIZE_MAXPACKETSIZE_Pos) || defined(__NRFX_DOXYGEN__)
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/**
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* @brief Function for getting the MIC check result.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*
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* @retval true The MIC check passed.
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* @retval false The MIC check failed.
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*/
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__STATIC_INLINE bool nrf_ccm_micstatus_get(NRF_CCM_Type const * p_reg);
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/**
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* @brief Function for setting the pointer to the data structure
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* holding the AES key and the CCM NONCE vector.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] p_data Pointer to the data structure.
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*/
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__STATIC_INLINE void nrf_ccm_cnfptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data);
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/**
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* @brief Function for getting the pointer to the data structure
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* holding the AES key and the CCM NONCE vector.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*
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* @return Pointer to the data structure.
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*/
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__STATIC_INLINE uint32_t * nrf_ccm_cnfptr_get(NRF_CCM_Type const * p_reg);
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/**
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* @brief Function for setting the input data pointer.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] p_data Input data pointer.
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*/
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__STATIC_INLINE void nrf_ccm_inptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data);
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/**
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* @brief Function for getting the input data pointer.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*
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* @return Input data pointer.
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*/
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__STATIC_INLINE uint32_t * nrf_ccm_inptr_get(NRF_CCM_Type const * p_reg);
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/**
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* @brief Function for setting the output data pointer.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] p_data Output data pointer.
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*/
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__STATIC_INLINE void nrf_ccm_outptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data);
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/**
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* @brief Function for getting the output data pointer.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*
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* @return Output data pointer.
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*/
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__STATIC_INLINE uint32_t * nrf_ccm_outptr_get(NRF_CCM_Type const * p_reg);
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/**
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* @brief Function for setting the pointer to the scratch area used for
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* temporary storage.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] p_area Pointer to the scratch area.
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*/
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__STATIC_INLINE void nrf_ccm_scratchptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_area);
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/**
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* @brief Function for getting the pointer to the scratch area.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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*
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* @return Pointer to the scratch area.
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*/
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__STATIC_INLINE uint32_t * nrf_ccm_stratchptr_get(NRF_CCM_Type const * p_reg);
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#if defined(CCM_RATEOVERRIDE_RATEOVERRIDE_Pos) || defined(__NRFX_DOXYGEN__)
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/**
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* @brief Function for setting the data rate override value.
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*
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* @param[in] p_reg Pointer to the structure of registers of the peripheral.
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* @param[in] datarate Override value to be applied when the RATEOVERRIDE task
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* is triggered.
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*/
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__STATIC_INLINE void nrf_ccm_datarate_override_set(NRF_CCM_Type * p_reg,
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nrf_ccm_datarate_t datarate);
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#endif // defined(CCM_RATEOVERRIDE_RATEOVERRIDE_Pos) || defined(__NRFX_DOXYGEN__)
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#ifndef SUPPRESS_INLINE_IMPLEMENTATION
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__STATIC_INLINE void nrf_ccm_task_trigger(NRF_CCM_Type * p_reg,
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nrf_ccm_task_t task)
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{
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*((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)task)) = 0x1UL;
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}
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__STATIC_INLINE uint32_t nrf_ccm_task_address_get(NRF_CCM_Type const * p_reg,
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nrf_ccm_task_t task)
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{
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return ((uint32_t)p_reg + (uint32_t)task);
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}
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__STATIC_INLINE void nrf_ccm_event_clear(NRF_CCM_Type * p_reg,
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nrf_ccm_event_t event)
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{
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*((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event)) = 0x0UL;
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#if __CORTEX_M == 0x04
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volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event));
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(void)dummy;
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#endif
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}
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__STATIC_INLINE bool nrf_ccm_event_check(NRF_CCM_Type const * p_reg,
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nrf_ccm_event_t event)
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{
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return (bool)*(volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
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}
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__STATIC_INLINE uint32_t nrf_ccm_event_address_get(NRF_CCM_Type const * p_reg,
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nrf_ccm_event_t event)
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{
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return ((uint32_t)p_reg + (uint32_t)event);
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}
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__STATIC_INLINE void nrf_ccm_int_enable(NRF_CCM_Type * p_reg, uint32_t mask)
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{
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p_reg->INTENSET = mask;
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}
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__STATIC_INLINE void nrf_ccm_int_disable(NRF_CCM_Type * p_reg, uint32_t mask)
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{
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p_reg->INTENCLR = mask;
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}
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__STATIC_INLINE bool nrf_ccm_int_enable_check(NRF_CCM_Type const * p_reg,
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nrf_ccm_int_mask_t ccm_int)
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{
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return (bool)(p_reg->INTENSET & ccm_int);
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}
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__STATIC_INLINE void nrf_ccm_enable(NRF_CCM_Type * p_reg)
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{
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p_reg->ENABLE = (CCM_ENABLE_ENABLE_Enabled << CCM_ENABLE_ENABLE_Pos);
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}
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__STATIC_INLINE void nrf_ccm_disable(NRF_CCM_Type * p_reg)
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{
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p_reg->ENABLE = (CCM_ENABLE_ENABLE_Disabled << CCM_ENABLE_ENABLE_Pos);
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}
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__STATIC_INLINE void nrf_ccm_configure(NRF_CCM_Type * p_reg,
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nrf_ccm_config_t const * p_config)
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{
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p_reg->MODE = (((uint32_t)p_config->mode << CCM_MODE_MODE_Pos) |
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#if defined(CCM_MODE_DATARATE_Pos)
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((uint32_t)p_config->datarate << CCM_MODE_DATARATE_Pos) |
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#endif
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#if defined(CCM_MODE_LENGTH_Pos)
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((uint32_t)p_config->length << CCM_MODE_LENGTH_Pos) |
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#endif
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0);
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}
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#if defined(CCM_MAXPACKETSIZE_MAXPACKETSIZE_Pos)
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__STATIC_INLINE void nrf_ccm_maxpacketsize_set(NRF_CCM_Type * p_reg,
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uint8_t size)
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{
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NRFX_ASSERT((size >= 0x1B) && (size <= 0xFB));
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p_reg->MAXPACKETSIZE = size;
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}
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#endif // defined(CCM_MAXPACKETSIZE_MAXPACKETSIZE_Pos)
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__STATIC_INLINE bool nrf_ccm_micstatus_get(NRF_CCM_Type const * p_reg)
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{
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return (bool)(p_reg->MICSTATUS);
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}
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__STATIC_INLINE void nrf_ccm_cnfptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data)
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{
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p_reg->CNFPTR = (uint32_t)p_data;
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}
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__STATIC_INLINE uint32_t * nrf_ccm_cnfptr_get(NRF_CCM_Type const * p_reg)
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{
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return (uint32_t *)(p_reg->CNFPTR);
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}
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__STATIC_INLINE void nrf_ccm_inptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data)
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{
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p_reg->INPTR = (uint32_t)p_data;
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}
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__STATIC_INLINE uint32_t * nrf_ccm_inptr_get(NRF_CCM_Type const * p_reg)
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{
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return (uint32_t *)(p_reg->INPTR);
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}
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__STATIC_INLINE void nrf_ccm_outptr_set(NRF_CCM_Type * p_reg,
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uint32_t const * p_data)
|
|
{
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|
p_reg->OUTPTR = (uint32_t)p_data;
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|
}
|
|
|
|
__STATIC_INLINE uint32_t * nrf_ccm_outptr_get(NRF_CCM_Type const * p_reg)
|
|
{
|
|
return (uint32_t *)(p_reg->OUTPTR);
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_ccm_scratchptr_set(NRF_CCM_Type * p_reg,
|
|
uint32_t const * p_area)
|
|
{
|
|
p_reg->SCRATCHPTR = (uint32_t)p_area;
|
|
}
|
|
|
|
__STATIC_INLINE uint32_t * nrf_ccm_stratchptr_get(NRF_CCM_Type const * p_reg)
|
|
{
|
|
return (uint32_t *)(p_reg->SCRATCHPTR);
|
|
}
|
|
|
|
#if defined(CCM_RATEOVERRIDE_RATEOVERRIDE_Pos)
|
|
__STATIC_INLINE void nrf_ccm_datarate_override_set(NRF_CCM_Type * p_reg,
|
|
nrf_ccm_datarate_t datarate)
|
|
{
|
|
p_reg->RATEOVERRIDE = ((uint32_t)datarate << CCM_RATEOVERRIDE_RATEOVERRIDE_Pos);
|
|
}
|
|
#endif
|
|
|
|
#endif // SUPPRESS_INLINE_IMPLEMENTATION
|
|
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // NRF_CCM_H__
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|
|