The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
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mbed 2
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Diff: TARGET_RO359B/TOOLCHAIN_IAR/fsl_rnga.h
- Revision:
- 171:3a7713b1edbc
- Parent:
- 143:86740a56073b
diff -r e95d10626187 -r 3a7713b1edbc TARGET_RO359B/TOOLCHAIN_IAR/fsl_rnga.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_RO359B/TOOLCHAIN_IAR/fsl_rnga.h Thu Nov 08 11:45:42 2018 +0000 @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2017 NXP + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_RNGA_DRIVER_H_ +#define _FSL_RNGA_DRIVER_H_ + +#include "fsl_common.h" + +#if defined(FSL_FEATURE_SOC_RNG_COUNT) && FSL_FEATURE_SOC_RNG_COUNT +/*! + * @addtogroup rnga + * @{ + */ + + +/******************************************************************************* + * Definitions + *******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief RNGA driver version 2.0.1. */ +#define FSL_RNGA_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! @brief RNGA working mode */ +typedef enum _rnga_mode +{ + kRNGA_ModeNormal = 0U, /*!< Normal Mode. The ring-oscillator clocks are active; RNGA generates entropy + (randomness) from the clocks and stores it in shift registers.*/ + kRNGA_ModeSleep = 1U, /*!< Sleep Mode. The ring-oscillator clocks are inactive; RNGA does not generate entropy.*/ +} rnga_mode_t; + +/******************************************************************************* + * API + *******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @brief Initializes the RNGA. + * + * This function initializes the RNGA. + * When called, the RNGA entropy generation starts immediately. + * + * @param base RNGA base address + */ +void RNGA_Init(RNG_Type *base); + +/*! + * @brief Shuts down the RNGA. + * + * This function shuts down the RNGA. + * + * @param base RNGA base address + */ +void RNGA_Deinit(RNG_Type *base); + +/*! + * @brief Gets random data. + * + * This function gets random data from the RNGA. + * + * @param base RNGA base address + * @param data pointer to user buffer to be filled by random data + * @param data_size size of data in bytes + * @return RNGA status + */ +status_t RNGA_GetRandomData(RNG_Type *base, void *data, size_t data_size); + +/*! + * @brief Feeds the RNGA module. + * + * This function inputs an entropy value that the RNGA uses to seed its + * pseudo-random algorithm. + * + * @param base RNGA base address + * @param seed input seed value + */ +void RNGA_Seed(RNG_Type *base, uint32_t seed); + +/*! + * @brief Sets the RNGA in normal mode or sleep mode. + * + * This function sets the RNGA in sleep mode or normal mode. + * + * @param base RNGA base address + * @param mode normal mode or sleep mode + */ +void RNGA_SetMode(RNG_Type *base, rnga_mode_t mode); + +/*! + * @brief Gets the RNGA working mode. + * + * This function gets the RNGA working mode. + * + * @param base RNGA base address + * @return normal mode or sleep mode + */ +rnga_mode_t RNGA_GetMode(RNG_Type *base); + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* FSL_FEATURE_SOC_RNG_COUNT */ +#endif /* _FSL_RNGA_H_*/