mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_rng.c@380:510f0c3515e3, 2014-11-03 (annotated)

Committer:
mbed_official
Date:
Mon Nov 03 10:15:07 2014 +0000
Revision:
380:510f0c3515e3
Parent:
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F411RE/stm32f4xx_hal_rng.c@235:685d5f11838f
Child:
384:ef87175507f1
Synchronized with git revision 417f470ba9f4882d7079611cbc576afd9c49b0ef



Full URL: https://github.com/mbedmicro/mbed/commit/417f470ba9f4882d7079611cbc576afd9c49b0ef/



Targets: Factorisation of NUCLEO_F401RE and F411RE cmsis folders

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /**
mbed_official 235:685d5f11838f 2 ******************************************************************************
mbed_official 235:685d5f11838f 3 * @file stm32f4xx_hal_rng.c
mbed_official 235:685d5f11838f 4 * @author MCD Application Team
mbed_official 235:685d5f11838f 5 * @version V1.1.0
mbed_official 235:685d5f11838f 6 * @date 19-June-2014
mbed_official 235:685d5f11838f 7 * @brief RNG HAL module driver.
mbed_official 235:685d5f11838f 8 * This file provides firmware functions to manage the following
mbed_official 235:685d5f11838f 9 * functionalities of the Random Number Generator (RNG) peripheral:
mbed_official 235:685d5f11838f 10 * + Initialization/de-initialization functions
mbed_official 235:685d5f11838f 11 * + Peripheral Control functions
mbed_official 235:685d5f11838f 12 * + Peripheral State functions
mbed_official 235:685d5f11838f 13 *
mbed_official 235:685d5f11838f 14 @verbatim
mbed_official 235:685d5f11838f 15 ==============================================================================
mbed_official 235:685d5f11838f 16 ##### How to use this driver #####
mbed_official 235:685d5f11838f 17 ==============================================================================
mbed_official 235:685d5f11838f 18 [..]
mbed_official 235:685d5f11838f 19 The RNG HAL driver can be used as follows:
mbed_official 235:685d5f11838f 20
mbed_official 235:685d5f11838f 21 (#) Enable the RNG controller clock using __RNG_CLK_ENABLE() macro.
mbed_official 235:685d5f11838f 22 (#) Activate the RNG peripheral using __HAL_RNG_ENABLE() macro.
mbed_official 235:685d5f11838f 23 (#) Wait until the 32 bit Random Number Generator contains a valid
mbed_official 235:685d5f11838f 24 random data using (polling/interrupt) mode.
mbed_official 235:685d5f11838f 25 (#) Get the 32 bit random number using HAL_RNG_GetRandomNumber() function.
mbed_official 235:685d5f11838f 26
mbed_official 235:685d5f11838f 27 @endverbatim
mbed_official 235:685d5f11838f 28 ******************************************************************************
mbed_official 235:685d5f11838f 29 * @attention
mbed_official 235:685d5f11838f 30 *
mbed_official 235:685d5f11838f 31 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 235:685d5f11838f 32 *
mbed_official 235:685d5f11838f 33 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 235:685d5f11838f 34 * are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 35 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 36 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 37 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 38 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 39 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 40 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 41 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 42 * without specific prior written permission.
mbed_official 235:685d5f11838f 43 *
mbed_official 235:685d5f11838f 44 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 45 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 47 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 50 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 51 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 52 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 54 *
mbed_official 235:685d5f11838f 55 ******************************************************************************
mbed_official 235:685d5f11838f 56 */
mbed_official 235:685d5f11838f 57
mbed_official 235:685d5f11838f 58 /* Includes ------------------------------------------------------------------*/
mbed_official 235:685d5f11838f 59 #include "stm32f4xx_hal.h"
mbed_official 235:685d5f11838f 60
mbed_official 235:685d5f11838f 61 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 235:685d5f11838f 62 * @{
mbed_official 235:685d5f11838f 63 */
mbed_official 235:685d5f11838f 64
mbed_official 235:685d5f11838f 65 /** @defgroup RNG
mbed_official 235:685d5f11838f 66 * @brief RNG HAL module driver.
mbed_official 235:685d5f11838f 67 * @{
mbed_official 235:685d5f11838f 68 */
mbed_official 235:685d5f11838f 69
mbed_official 235:685d5f11838f 70 #ifdef HAL_RNG_MODULE_ENABLED
mbed_official 235:685d5f11838f 71
mbed_official 235:685d5f11838f 72 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\
mbed_official 235:685d5f11838f 73 defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
mbed_official 235:685d5f11838f 74
mbed_official 235:685d5f11838f 75 /* Private typedef -----------------------------------------------------------*/
mbed_official 235:685d5f11838f 76 /* Private define ------------------------------------------------------------*/
mbed_official 235:685d5f11838f 77 #define RNG_TIMEOUT_VALUE 1000
mbed_official 235:685d5f11838f 78 /* Private macro -------------------------------------------------------------*/
mbed_official 235:685d5f11838f 79 /* Private variables ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 80 /* Private function prototypes -----------------------------------------------*/
mbed_official 235:685d5f11838f 81 /* Private functions ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 82
mbed_official 235:685d5f11838f 83 /** @defgroup RNG_Private_Functions
mbed_official 235:685d5f11838f 84 * @{
mbed_official 235:685d5f11838f 85 */
mbed_official 235:685d5f11838f 86
mbed_official 235:685d5f11838f 87 /** @defgroup RNG_Group1 Initialization and de-initialization functions
mbed_official 235:685d5f11838f 88 * @brief Initialization and Configuration functions.
mbed_official 235:685d5f11838f 89 *
mbed_official 235:685d5f11838f 90 @verbatim
mbed_official 235:685d5f11838f 91 ===============================================================================
mbed_official 235:685d5f11838f 92 ##### Initialization and de-initialization functions #####
mbed_official 235:685d5f11838f 93 ===============================================================================
mbed_official 235:685d5f11838f 94 [..] This section provides functions allowing to:
mbed_official 235:685d5f11838f 95 (+) Initialize the RNG according to the specified parameters
mbed_official 235:685d5f11838f 96 in the RNG_InitTypeDef and create the associated handle
mbed_official 235:685d5f11838f 97 (+) DeInitialize the RNG peripheral
mbed_official 235:685d5f11838f 98 (+) Initialize the RNG MSP
mbed_official 235:685d5f11838f 99 (+) DeInitialize RNG MSP
mbed_official 235:685d5f11838f 100
mbed_official 235:685d5f11838f 101 @endverbatim
mbed_official 235:685d5f11838f 102 * @{
mbed_official 235:685d5f11838f 103 */
mbed_official 235:685d5f11838f 104
mbed_official 235:685d5f11838f 105 /**
mbed_official 235:685d5f11838f 106 * @brief Initializes the RNG according to the specified
mbed_official 235:685d5f11838f 107 * parameters in the RNG_InitTypeDef and creates the associated handle.
mbed_official 235:685d5f11838f 108 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 109 * the configuration information for RNG.
mbed_official 235:685d5f11838f 110 * @retval HAL status
mbed_official 235:685d5f11838f 111 */
mbed_official 235:685d5f11838f 112 HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 113 {
mbed_official 235:685d5f11838f 114 /* Check the RNG handle allocation */
mbed_official 235:685d5f11838f 115 if(hrng == NULL)
mbed_official 235:685d5f11838f 116 {
mbed_official 235:685d5f11838f 117 return HAL_ERROR;
mbed_official 235:685d5f11838f 118 }
mbed_official 235:685d5f11838f 119
mbed_official 235:685d5f11838f 120 if(hrng->State == HAL_RNG_STATE_RESET)
mbed_official 235:685d5f11838f 121 {
mbed_official 235:685d5f11838f 122 /* Init the low level hardware */
mbed_official 235:685d5f11838f 123 HAL_RNG_MspInit(hrng);
mbed_official 235:685d5f11838f 124 }
mbed_official 235:685d5f11838f 125 /* Change RNG peripheral state */
mbed_official 235:685d5f11838f 126 hrng->State = HAL_RNG_STATE_BUSY;
mbed_official 235:685d5f11838f 127
mbed_official 235:685d5f11838f 128 /* Enable the RNG Peripheral */
mbed_official 235:685d5f11838f 129 __HAL_RNG_ENABLE(hrng);
mbed_official 235:685d5f11838f 130
mbed_official 235:685d5f11838f 131 /* Initialize the RNG state */
mbed_official 235:685d5f11838f 132 hrng->State = HAL_RNG_STATE_READY;
mbed_official 235:685d5f11838f 133
mbed_official 235:685d5f11838f 134 /* Return function status */
mbed_official 235:685d5f11838f 135 return HAL_OK;
mbed_official 235:685d5f11838f 136 }
mbed_official 235:685d5f11838f 137
mbed_official 235:685d5f11838f 138 /**
mbed_official 235:685d5f11838f 139 * @brief DeInitializes the RNG peripheral.
mbed_official 235:685d5f11838f 140 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 141 * the configuration information for RNG.
mbed_official 235:685d5f11838f 142 * @retval HAL status
mbed_official 235:685d5f11838f 143 */
mbed_official 235:685d5f11838f 144 HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 145 {
mbed_official 235:685d5f11838f 146 /* Check the RNG peripheral state */
mbed_official 235:685d5f11838f 147 if(hrng->State == HAL_RNG_STATE_BUSY)
mbed_official 235:685d5f11838f 148 {
mbed_official 235:685d5f11838f 149 return HAL_BUSY;
mbed_official 235:685d5f11838f 150 }
mbed_official 235:685d5f11838f 151
mbed_official 235:685d5f11838f 152 /* Update the RNG state */
mbed_official 235:685d5f11838f 153 hrng->State = HAL_RNG_STATE_BUSY;
mbed_official 235:685d5f11838f 154
mbed_official 235:685d5f11838f 155 /* Disable the RNG Peripheral */
mbed_official 235:685d5f11838f 156 __HAL_RNG_DISABLE(hrng);
mbed_official 235:685d5f11838f 157
mbed_official 235:685d5f11838f 158 /* Set the RNG registers to their reset values */
mbed_official 235:685d5f11838f 159 hrng->Instance->CR &= 0xFFFFFFF3;
mbed_official 235:685d5f11838f 160 hrng->Instance->SR &= 0xFFFFFF98;
mbed_official 235:685d5f11838f 161 hrng->Instance->DR &= 0x0;
mbed_official 235:685d5f11838f 162
mbed_official 235:685d5f11838f 163 /* DeInit the low level hardware */
mbed_official 235:685d5f11838f 164 HAL_RNG_MspDeInit(hrng);
mbed_official 235:685d5f11838f 165
mbed_official 235:685d5f11838f 166 /* Update the RNG state */
mbed_official 235:685d5f11838f 167 hrng->State = HAL_RNG_STATE_RESET;
mbed_official 235:685d5f11838f 168
mbed_official 235:685d5f11838f 169 /* Release Lock */
mbed_official 235:685d5f11838f 170 __HAL_UNLOCK(hrng);
mbed_official 235:685d5f11838f 171
mbed_official 235:685d5f11838f 172 /* Return the function status */
mbed_official 235:685d5f11838f 173 return HAL_OK;
mbed_official 235:685d5f11838f 174 }
mbed_official 235:685d5f11838f 175
mbed_official 235:685d5f11838f 176 /**
mbed_official 235:685d5f11838f 177 * @brief Initializes the RNG MSP.
mbed_official 235:685d5f11838f 178 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 179 * the configuration information for RNG.
mbed_official 235:685d5f11838f 180 * @retval None
mbed_official 235:685d5f11838f 181 */
mbed_official 235:685d5f11838f 182 __weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 183 {
mbed_official 235:685d5f11838f 184 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 185 the HAL_RNG_MspInit could be implemented in the user file
mbed_official 235:685d5f11838f 186 */
mbed_official 235:685d5f11838f 187 }
mbed_official 235:685d5f11838f 188
mbed_official 235:685d5f11838f 189 /**
mbed_official 235:685d5f11838f 190 * @brief DeInitializes the RNG MSP.
mbed_official 235:685d5f11838f 191 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 192 * the configuration information for RNG.
mbed_official 235:685d5f11838f 193 * @retval None
mbed_official 235:685d5f11838f 194 */
mbed_official 235:685d5f11838f 195 __weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 196 {
mbed_official 235:685d5f11838f 197 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 198 the HAL_RNG_MspDeInit could be implemented in the user file
mbed_official 235:685d5f11838f 199 */
mbed_official 235:685d5f11838f 200 }
mbed_official 235:685d5f11838f 201
mbed_official 235:685d5f11838f 202 /**
mbed_official 235:685d5f11838f 203 * @}
mbed_official 235:685d5f11838f 204 */
mbed_official 235:685d5f11838f 205
mbed_official 235:685d5f11838f 206 /** @defgroup RNG_Group2 Peripheral Control functions
mbed_official 235:685d5f11838f 207 * @brief management functions.
mbed_official 235:685d5f11838f 208 *
mbed_official 235:685d5f11838f 209 @verbatim
mbed_official 235:685d5f11838f 210 ===============================================================================
mbed_official 235:685d5f11838f 211 ##### Peripheral Control functions #####
mbed_official 235:685d5f11838f 212 ===============================================================================
mbed_official 235:685d5f11838f 213 [..] This section provides functions allowing to:
mbed_official 235:685d5f11838f 214 (+) Get the 32 bit Random number
mbed_official 235:685d5f11838f 215 (+) Get the 32 bit Random number with interrupt enabled
mbed_official 235:685d5f11838f 216 (+) Handle RNG interrupt request
mbed_official 235:685d5f11838f 217
mbed_official 235:685d5f11838f 218
mbed_official 235:685d5f11838f 219 @endverbatim
mbed_official 235:685d5f11838f 220 * @{
mbed_official 235:685d5f11838f 221 */
mbed_official 235:685d5f11838f 222
mbed_official 235:685d5f11838f 223 /**
mbed_official 235:685d5f11838f 224 * @brief Returns a 32-bit random number.
mbed_official 235:685d5f11838f 225 * @note Each time the random number data is read the RNG_FLAG_DRDY flag
mbed_official 235:685d5f11838f 226 * is automatically cleared.
mbed_official 235:685d5f11838f 227 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 228 * the configuration information for RNG.
mbed_official 235:685d5f11838f 229 * @retval 32-bit random number
mbed_official 235:685d5f11838f 230 */
mbed_official 235:685d5f11838f 231 uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 232 {
mbed_official 235:685d5f11838f 233 uint32_t random32bit = 0;
mbed_official 235:685d5f11838f 234 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 235
mbed_official 235:685d5f11838f 236 /* Process Locked */
mbed_official 235:685d5f11838f 237 __HAL_LOCK(hrng);
mbed_official 235:685d5f11838f 238
mbed_official 235:685d5f11838f 239 /* Get tick */
mbed_official 235:685d5f11838f 240 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 241
mbed_official 235:685d5f11838f 242 /* Check if data register contains valid random data */
mbed_official 235:685d5f11838f 243 while(__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET)
mbed_official 235:685d5f11838f 244 {
mbed_official 235:685d5f11838f 245 if((HAL_GetTick() - tickstart ) > RNG_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 246 {
mbed_official 235:685d5f11838f 247 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 248 }
mbed_official 235:685d5f11838f 249 }
mbed_official 235:685d5f11838f 250
mbed_official 235:685d5f11838f 251 /* Get a 32bit Random number */
mbed_official 235:685d5f11838f 252 random32bit = hrng->Instance->DR;
mbed_official 235:685d5f11838f 253
mbed_official 235:685d5f11838f 254 /* Process Unlocked */
mbed_official 235:685d5f11838f 255 __HAL_UNLOCK(hrng);
mbed_official 235:685d5f11838f 256
mbed_official 235:685d5f11838f 257 /* Return the 32 bit random number */
mbed_official 235:685d5f11838f 258 return random32bit;
mbed_official 235:685d5f11838f 259 }
mbed_official 235:685d5f11838f 260
mbed_official 235:685d5f11838f 261 /**
mbed_official 235:685d5f11838f 262 * @brief Returns a 32-bit random number with interrupt enabled.
mbed_official 235:685d5f11838f 263 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 264 * the configuration information for RNG.
mbed_official 235:685d5f11838f 265 * @retval 32-bit random number
mbed_official 235:685d5f11838f 266 */
mbed_official 235:685d5f11838f 267 uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 268 {
mbed_official 235:685d5f11838f 269 uint32_t random32bit = 0;
mbed_official 235:685d5f11838f 270
mbed_official 235:685d5f11838f 271 /* Process Locked */
mbed_official 235:685d5f11838f 272 __HAL_LOCK(hrng);
mbed_official 235:685d5f11838f 273
mbed_official 235:685d5f11838f 274 /* Change RNG peripheral state */
mbed_official 235:685d5f11838f 275 hrng->State = HAL_RNG_STATE_BUSY;
mbed_official 235:685d5f11838f 276
mbed_official 235:685d5f11838f 277 /* Get a 32bit Random number */
mbed_official 235:685d5f11838f 278 random32bit = hrng->Instance->DR;
mbed_official 235:685d5f11838f 279
mbed_official 235:685d5f11838f 280 /* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */
mbed_official 235:685d5f11838f 281 __HAL_RNG_ENABLE_IT(hrng);
mbed_official 235:685d5f11838f 282
mbed_official 235:685d5f11838f 283 /* Return the 32 bit random number */
mbed_official 235:685d5f11838f 284 return random32bit;
mbed_official 235:685d5f11838f 285 }
mbed_official 235:685d5f11838f 286
mbed_official 235:685d5f11838f 287 /**
mbed_official 235:685d5f11838f 288 * @brief Handles RNG interrupt request.
mbed_official 235:685d5f11838f 289 * @note In the case of a clock error, the RNG is no more able to generate
mbed_official 235:685d5f11838f 290 * random numbers because the PLL48CLK clock is not correct. User has
mbed_official 235:685d5f11838f 291 * to check that the clock controller is correctly configured to provide
mbed_official 235:685d5f11838f 292 * the RNG clock and clear the CEIS bit using __HAL_RNG_CLEAR_FLAG().
mbed_official 235:685d5f11838f 293 * The clock error has no impact on the previously generated
mbed_official 235:685d5f11838f 294 * random numbers, and the RNG_DR register contents can be used.
mbed_official 235:685d5f11838f 295 * @note In the case of a seed error, the generation of random numbers is
mbed_official 235:685d5f11838f 296 * interrupted as long as the SECS bit is '1'. If a number is
mbed_official 235:685d5f11838f 297 * available in the RNG_DR register, it must not be used because it may
mbed_official 235:685d5f11838f 298 * not have enough entropy. In this case, it is recommended to clear the
mbed_official 235:685d5f11838f 299 * SEIS bit using __HAL_RNG_CLEAR_FLAG(), then disable and enable
mbed_official 235:685d5f11838f 300 * the RNG peripheral to reinitialize and restart the RNG.
mbed_official 235:685d5f11838f 301 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 302 * the configuration information for RNG.
mbed_official 235:685d5f11838f 303 * @retval None
mbed_official 235:685d5f11838f 304
mbed_official 235:685d5f11838f 305 */
mbed_official 235:685d5f11838f 306 void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 307 {
mbed_official 235:685d5f11838f 308 /* RNG clock error interrupt occurred */
mbed_official 235:685d5f11838f 309 if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_CEI) != RESET)
mbed_official 235:685d5f11838f 310 {
mbed_official 235:685d5f11838f 311 HAL_RNG_ErrorCallback(hrng);
mbed_official 235:685d5f11838f 312
mbed_official 235:685d5f11838f 313 /* Clear the clock error flag */
mbed_official 235:685d5f11838f 314 __HAL_RNG_CLEAR_FLAG(hrng, RNG_IT_CEI);
mbed_official 235:685d5f11838f 315
mbed_official 235:685d5f11838f 316 /* Change RNG peripheral state */
mbed_official 235:685d5f11838f 317 hrng->State = HAL_RNG_STATE_ERROR;
mbed_official 235:685d5f11838f 318
mbed_official 235:685d5f11838f 319 /* Process Unlocked */
mbed_official 235:685d5f11838f 320 __HAL_UNLOCK(hrng);
mbed_official 235:685d5f11838f 321 }
mbed_official 235:685d5f11838f 322
mbed_official 235:685d5f11838f 323 /* RNG seed error interrupt occurred */
mbed_official 235:685d5f11838f 324 if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_SEI) != RESET)
mbed_official 235:685d5f11838f 325 {
mbed_official 235:685d5f11838f 326 HAL_RNG_ErrorCallback(hrng);
mbed_official 235:685d5f11838f 327
mbed_official 235:685d5f11838f 328 /* Clear the seed error flag */
mbed_official 235:685d5f11838f 329 __HAL_RNG_CLEAR_FLAG(hrng, RNG_IT_SEI);
mbed_official 235:685d5f11838f 330
mbed_official 235:685d5f11838f 331 /* Change RNG peripheral state */
mbed_official 235:685d5f11838f 332 hrng->State = HAL_RNG_STATE_ERROR;
mbed_official 235:685d5f11838f 333
mbed_official 235:685d5f11838f 334 /* Process Unlocked */
mbed_official 235:685d5f11838f 335 __HAL_UNLOCK(hrng);
mbed_official 235:685d5f11838f 336 }
mbed_official 235:685d5f11838f 337
mbed_official 235:685d5f11838f 338 /* Check RNG data ready flag */
mbed_official 235:685d5f11838f 339 if(__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) != RESET)
mbed_official 235:685d5f11838f 340 {
mbed_official 235:685d5f11838f 341 /* Data Ready callback */
mbed_official 235:685d5f11838f 342 HAL_RNG_ReadyCallback(hrng);
mbed_official 235:685d5f11838f 343
mbed_official 235:685d5f11838f 344 /* Change RNG peripheral state */
mbed_official 235:685d5f11838f 345 hrng->State = HAL_RNG_STATE_READY;
mbed_official 235:685d5f11838f 346
mbed_official 235:685d5f11838f 347 /* Clear the RNG Data Ready flag */
mbed_official 235:685d5f11838f 348 __HAL_RNG_CLEAR_FLAG(hrng, RNG_FLAG_DRDY);
mbed_official 235:685d5f11838f 349
mbed_official 235:685d5f11838f 350 /* Process Unlocked */
mbed_official 235:685d5f11838f 351 __HAL_UNLOCK(hrng);
mbed_official 235:685d5f11838f 352 }
mbed_official 235:685d5f11838f 353 }
mbed_official 235:685d5f11838f 354
mbed_official 235:685d5f11838f 355 /**
mbed_official 235:685d5f11838f 356 * @brief Data Ready callback in non-blocking mode.
mbed_official 235:685d5f11838f 357 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 358 * the configuration information for RNG.
mbed_official 235:685d5f11838f 359 * @retval None
mbed_official 235:685d5f11838f 360 */
mbed_official 235:685d5f11838f 361
mbed_official 235:685d5f11838f 362 __weak void HAL_RNG_ReadyCallback(RNG_HandleTypeDef* hrng)
mbed_official 235:685d5f11838f 363 {
mbed_official 235:685d5f11838f 364 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 365 the HAL_RNG_ReadyCallback could be implemented in the user file
mbed_official 235:685d5f11838f 366 */
mbed_official 235:685d5f11838f 367 }
mbed_official 235:685d5f11838f 368
mbed_official 235:685d5f11838f 369 /**
mbed_official 235:685d5f11838f 370 * @brief RNG error callbacks.
mbed_official 235:685d5f11838f 371 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 372 * the configuration information for RNG.
mbed_official 235:685d5f11838f 373 * @retval None
mbed_official 235:685d5f11838f 374 */
mbed_official 235:685d5f11838f 375 __weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 376 {
mbed_official 235:685d5f11838f 377 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 378 the HAL_RNG_ErrorCallback could be implemented in the user file
mbed_official 235:685d5f11838f 379 */
mbed_official 235:685d5f11838f 380 }
mbed_official 235:685d5f11838f 381
mbed_official 235:685d5f11838f 382 /**
mbed_official 235:685d5f11838f 383 * @}
mbed_official 235:685d5f11838f 384 */
mbed_official 235:685d5f11838f 385
mbed_official 235:685d5f11838f 386 /** @defgroup RNG_Group3 Peripheral State functions
mbed_official 235:685d5f11838f 387 * @brief Peripheral State functions.
mbed_official 235:685d5f11838f 388 *
mbed_official 235:685d5f11838f 389 @verbatim
mbed_official 235:685d5f11838f 390 ===============================================================================
mbed_official 235:685d5f11838f 391 ##### Peripheral State functions #####
mbed_official 235:685d5f11838f 392 ===============================================================================
mbed_official 235:685d5f11838f 393 [..]
mbed_official 235:685d5f11838f 394 This subsection permits to get in run-time the status of the peripheral
mbed_official 235:685d5f11838f 395 and the data flow.
mbed_official 235:685d5f11838f 396
mbed_official 235:685d5f11838f 397 @endverbatim
mbed_official 235:685d5f11838f 398 * @{
mbed_official 235:685d5f11838f 399 */
mbed_official 235:685d5f11838f 400
mbed_official 235:685d5f11838f 401 /**
mbed_official 235:685d5f11838f 402 * @brief Returns the RNG state.
mbed_official 235:685d5f11838f 403 * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 404 * the configuration information for RNG.
mbed_official 235:685d5f11838f 405 * @retval HAL state
mbed_official 235:685d5f11838f 406 */
mbed_official 235:685d5f11838f 407 HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
mbed_official 235:685d5f11838f 408 {
mbed_official 235:685d5f11838f 409 return hrng->State;
mbed_official 235:685d5f11838f 410 }
mbed_official 235:685d5f11838f 411
mbed_official 235:685d5f11838f 412 /**
mbed_official 235:685d5f11838f 413 * @}
mbed_official 235:685d5f11838f 414 */
mbed_official 235:685d5f11838f 415
mbed_official 235:685d5f11838f 416 /**
mbed_official 235:685d5f11838f 417 * @}
mbed_official 235:685d5f11838f 418 */
mbed_official 235:685d5f11838f 419
mbed_official 235:685d5f11838f 420 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
mbed_official 235:685d5f11838f 421
mbed_official 235:685d5f11838f 422 #endif /* HAL_RNG_MODULE_ENABLED */
mbed_official 235:685d5f11838f 423 /**
mbed_official 235:685d5f11838f 424 * @}
mbed_official 235:685d5f11838f 425 */
mbed_official 235:685d5f11838f 426
mbed_official 235:685d5f11838f 427 /**
mbed_official 235:685d5f11838f 428 * @}
mbed_official 235:685d5f11838f 429 */
mbed_official 235:685d5f11838f 430
mbed_official 235:685d5f11838f 431 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/