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Diffstat (limited to 'stmhal/hal/src/stm32f4xx_hal_rng.c')
-rw-r--r--stmhal/hal/src/stm32f4xx_hal_rng.c57
1 files changed, 37 insertions, 20 deletions
diff --git a/stmhal/hal/src/stm32f4xx_hal_rng.c b/stmhal/hal/src/stm32f4xx_hal_rng.c
index 83ec34912..d9372ed91 100644
--- a/stmhal/hal/src/stm32f4xx_hal_rng.c
+++ b/stmhal/hal/src/stm32f4xx_hal_rng.c
@@ -2,8 +2,8 @@
******************************************************************************
* @file stm32f4xx_hal_rng.c
* @author MCD Application Team
- * @version V1.0.0
- * @date 18-February-2014
+ * @version V1.1.0
+ * @date 19-June-2014
* @brief RNG HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Random Number Generator (RNG) peripheral:
@@ -69,6 +69,9 @@
#ifdef HAL_RNG_MODULE_ENABLED
+#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\
+ defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
+
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define RNG_TIMEOUT_VALUE 1000
@@ -102,7 +105,8 @@
/**
* @brief Initializes the RNG according to the specified
* parameters in the RNG_InitTypeDef and creates the associated handle.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
@@ -118,20 +122,23 @@ HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
/* Init the low level hardware */
HAL_RNG_MspInit(hrng);
}
+ /* Change RNG peripheral state */
+ hrng->State = HAL_RNG_STATE_BUSY;
/* Enable the RNG Peripheral */
__HAL_RNG_ENABLE(hrng);
-
+
/* Initialize the RNG state */
hrng->State = HAL_RNG_STATE_READY;
-
+
/* Return function status */
return HAL_OK;
}
/**
* @brief DeInitializes the RNG peripheral.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng)
@@ -168,7 +175,8 @@ HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng)
/**
* @brief Initializes the RNG MSP.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng)
@@ -180,7 +188,8 @@ __weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng)
/**
* @brief DeInitializes the RNG MSP.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng)
@@ -215,23 +224,25 @@ __weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng)
* @brief Returns a 32-bit random number.
* @note Each time the random number data is read the RNG_FLAG_DRDY flag
* is automatically cleared.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval 32-bit random number
*/
uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng)
{
uint32_t random32bit = 0;
- uint32_t timeout = 0;
+ uint32_t tickstart = 0;
/* Process Locked */
__HAL_LOCK(hrng);
- timeout = HAL_GetTick() + RNG_TIMEOUT_VALUE;
+ /* Get tick */
+ tickstart = HAL_GetTick();
/* Check if data register contains valid random data */
while(__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET)
{
- if(HAL_GetTick() >= timeout)
+ if((HAL_GetTick() - tickstart ) > RNG_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
@@ -249,7 +260,8 @@ uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng)
/**
* @brief Returns a 32-bit random number with interrupt enabled.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval 32-bit random number
*/
uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng)
@@ -286,13 +298,14 @@ uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng)
* not have enough entropy. In this case, it is recommended to clear the
* SEIS bit using __HAL_RNG_CLEAR_FLAG(), then disable and enable
* the RNG peripheral to reinitialize and restart the RNG.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval None
*/
void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
{
- /* RNG clock error interrupt occured */
+ /* RNG clock error interrupt occurred */
if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_CEI) != RESET)
{
HAL_RNG_ErrorCallback(hrng);
@@ -307,7 +320,7 @@ void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
__HAL_UNLOCK(hrng);
}
- /* RNG seed error interrupt occured */
+ /* RNG seed error interrupt occurred */
if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_SEI) != RESET)
{
HAL_RNG_ErrorCallback(hrng);
@@ -341,7 +354,8 @@ void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
/**
* @brief Data Ready callback in non-blocking mode.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval None
*/
@@ -354,7 +368,8 @@ __weak void HAL_RNG_ReadyCallback(RNG_HandleTypeDef* hrng)
/**
* @brief RNG error callbacks.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng)
@@ -385,7 +400,8 @@ __weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng)
/**
* @brief Returns the RNG state.
- * @param hrng: RNG handle
+ * @param hrng: pointer to a RNG_HandleTypeDef structure that contains
+ * the configuration information for RNG.
* @retval HAL state
*/
HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
@@ -401,6 +417,8 @@ HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
* @}
*/
+#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
+
#endif /* HAL_RNG_MODULE_ENABLED */
/**
* @}
@@ -411,4 +429,3 @@ HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
-
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-26 09:19:56 +0000