diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_ll_rng.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_ll_rng.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_ll_rng.c b/bsps/arm/stm32h7/hal/stm32h7xx_ll_rng.c new file mode 100644 index 0000000000..8579270538 --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_ll_rng.c @@ -0,0 +1,158 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_ll_rng.c
+ * @author MCD Application Team
+ * @brief RNG LL module driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_ll_rng.h"
+#include "stm32h7xx_ll_bus.h"
+
+#ifdef USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32H7xx_LL_Driver
+ * @{
+ */
+
+#if defined (RNG)
+
+/** @addtogroup RNG_LL
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/** @addtogroup RNG_LL_Private_Macros
+ * @{
+ */
+#define IS_LL_RNG_CED(__MODE__) (((__MODE__) == LL_RNG_CED_ENABLE) || \
+ ((__MODE__) == LL_RNG_CED_DISABLE))
+
+#if defined(RNG_CR_CONDRST)
+#define IS_LL_RNG_CLOCK_DIVIDER(__CLOCK_DIV__) ((__CLOCK_DIV__) <=0x0Fu)
+
+
+#define IS_LL_RNG_NIST_COMPLIANCE(__NIST_COMPLIANCE__) (((__NIST_COMPLIANCE__) == LL_RNG_NIST_COMPLIANT) || \
+ ((__NIST_COMPLIANCE__) == LL_RNG_NOTNIST_COMPLIANT))
+
+#define IS_LL_RNG_CONFIG1 (__CONFIG1__) ((__CONFIG1__) <= 0x3FUL)
+
+#define IS_LL_RNG_CONFIG2 (__CONFIG2__) ((__CONFIG2__) <= 0x07UL)
+
+#define IS_LL_RNG_CONFIG3 (__CONFIG3__) ((__CONFIG3__) <= 0xFUL)
+#endif /* RNG_CR_CONDRST*/
+/**
+ * @}
+ */
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup RNG_LL_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup RNG_LL_EF_Init
+ * @{
+ */
+
+/**
+ * @brief De-initialize RNG registers (Registers restored to their default values).
+ * @param RNGx RNG Instance
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RNG registers are de-initialized
+ * - ERROR: not applicable
+ */
+ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
+{
+ /* Check the parameters */
+ assert_param(IS_RNG_ALL_INSTANCE(RNGx));
+ /* Enable RNG reset state */
+ LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
+
+ /* Release RNG from reset state */
+ LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
+ return (SUCCESS);
+}
+
+/**
+ * @brief Initialize RNG registers according to the specified parameters in RNG_InitStruct.
+ * @param RNGx RNG Instance
+ * @param RNG_InitStruct pointer to a LL_RNG_InitTypeDef structure
+ * that contains the configuration information for the specified RNG peripheral.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RNG registers are initialized according to RNG_InitStruct content
+ * - ERROR: not applicable
+ */
+ErrorStatus LL_RNG_Init(RNG_TypeDef *RNGx, LL_RNG_InitTypeDef *RNG_InitStruct)
+{
+ /* Check the parameters */
+ assert_param(IS_RNG_ALL_INSTANCE(RNGx));
+ assert_param(IS_LL_RNG_CED(RNG_InitStruct->ClockErrorDetection));
+
+#if defined(RNG_CR_CONDRST)
+ /* Clock Error Detection Configuration when CONDRT bit is set to 1 */
+ MODIFY_REG(RNGx->CR, RNG_CR_CED | RNG_CR_CONDRST, RNG_InitStruct->ClockErrorDetection | RNG_CR_CONDRST);
+ /* Writing bits CONDRST=0*/
+ CLEAR_BIT(RNGx->CR, RNG_CR_CONDRST);
+#else
+ /* Clock Error Detection configuration */
+ MODIFY_REG(RNGx->CR, RNG_CR_CED, RNG_InitStruct->ClockErrorDetection);
+#endif /* RNG_CR_CONDRST */
+
+ return (SUCCESS);
+}
+
+/**
+ * @brief Set each @ref LL_RNG_InitTypeDef field to default value.
+ * @param RNG_InitStruct pointer to a @ref LL_RNG_InitTypeDef structure
+ * whose fields will be set to default values.
+ * @retval None
+ */
+void LL_RNG_StructInit(LL_RNG_InitTypeDef *RNG_InitStruct)
+{
+ /* Set RNG_InitStruct fields to default values */
+ RNG_InitStruct->ClockErrorDetection = LL_RNG_CED_ENABLE;
+
+}
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* RNG */
+
+/**
+ * @}
+ */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
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