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- /**
- ******************************************************************************
- * @file stm32h7xx_ll_swpmi.c
- * @author MCD Application Team
- * @brief SWPMI 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_swpmi.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
- * @{
- */
-
-
- /** @addtogroup SWPMI_LL
- * @{
- */
-
- /* Private types -------------------------------------------------------------*/
- /* Private variables ---------------------------------------------------------*/
- /* Private constants ---------------------------------------------------------*/
- /* Private macros ------------------------------------------------------------*/
- /** @addtogroup SWPMI_LL_Private_Macros
- * @{
- */
-
- #define IS_LL_SWPMI_BITRATE_VALUE(__VALUE__) (((__VALUE__) <= 255U))
-
- #define IS_LL_SWPMI_SW_BUFFER_RX(__VALUE__) (((__VALUE__) == LL_SWPMI_SW_BUFFER_RX_SINGLE) \
- || ((__VALUE__) == LL_SWPMI_SW_BUFFER_RX_MULTI))
-
- #define IS_LL_SWPMI_SW_BUFFER_TX(__VALUE__) (((__VALUE__) == LL_SWPMI_SW_BUFFER_TX_SINGLE) \
- || ((__VALUE__) == LL_SWPMI_SW_BUFFER_TX_MULTI))
-
- #define IS_LL_SWPMI_VOLTAGE_CLASS(__VALUE__) (((__VALUE__) == LL_SWPMI_VOLTAGE_CLASS_C) \
- || ((__VALUE__) == LL_SWPMI_VOLTAGE_CLASS_B))
-
- /**
- * @}
- */
-
- /* Private function prototypes -----------------------------------------------*/
-
- /* Exported functions --------------------------------------------------------*/
- /** @addtogroup SWPMI_LL_Exported_Functions
- * @{
- */
-
- /** @addtogroup SWPMI_LL_EF_Init
- * @{
- */
-
- /**
- * @brief De-initialize the SWPMI peripheral registers to their default reset values.
- * @param SWPMIx SWPMI Instance
- * @retval An ErrorStatus enumeration value
- * - SUCCESS: SWPMI registers are de-initialized
- * - ERROR: Not applicable
- */
- ErrorStatus LL_SWPMI_DeInit(SWPMI_TypeDef *SWPMIx)
- {
- ErrorStatus status = SUCCESS;
-
- /* Check the parameter */
- assert_param(IS_SWPMI_INSTANCE(SWPMIx));
-
- if (SWPMIx == SWPMI1)
- {
- LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_SWPMI1);
- LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_SWPMI1);
- }
- else
- {
- status = ERROR;
- }
-
- return status;
- }
-
- /**
- * @brief Initialize the SWPMI peripheral according to the specified parameters in the SWPMI_InitStruct.
- * @note As some bits in SWPMI configuration registers can only be written when the SWPMI is deactivated (SWPMI_CR_SWPACT bit = 0),
- * SWPMI IP should be in deactivated state prior calling this function. Otherwise, ERROR result will be returned.
- * @param SWPMIx SWPMI Instance
- * @param SWPMI_InitStruct pointer to a @ref LL_SWPMI_InitTypeDef structure that contains
- * the configuration information for the SWPMI peripheral.
- * @retval An ErrorStatus enumeration value
- * - SUCCESS: SWPMI registers are initialized
- * - ERROR: SWPMI registers are not initialized
- */
- ErrorStatus LL_SWPMI_Init(SWPMI_TypeDef *SWPMIx, LL_SWPMI_InitTypeDef *SWPMI_InitStruct)
- {
- ErrorStatus status = SUCCESS;
-
- /* Check the parameters */
- assert_param(IS_SWPMI_INSTANCE(SWPMIx));
- assert_param(IS_LL_SWPMI_BITRATE_VALUE(SWPMI_InitStruct->BitRatePrescaler));
- assert_param(IS_LL_SWPMI_SW_BUFFER_TX(SWPMI_InitStruct->TxBufferingMode));
- assert_param(IS_LL_SWPMI_SW_BUFFER_RX(SWPMI_InitStruct->RxBufferingMode));
- assert_param(IS_LL_SWPMI_VOLTAGE_CLASS(SWPMI_InitStruct->VoltageClass));
-
- /* SWPMI needs to be in deactivated state, in order to be able to configure some bits */
- if (LL_SWPMI_IsActivated(SWPMIx) == 0U)
- {
- /* Configure the BRR register (Bitrate) */
- LL_SWPMI_SetBitRatePrescaler(SWPMIx, SWPMI_InitStruct->BitRatePrescaler);
-
- /* Configure the voltage class */
- LL_SWPMI_SetVoltageClass(SWPMIx, SWPMI_InitStruct->VoltageClass);
-
- /* Set the new configuration of the SWPMI peripheral */
- MODIFY_REG(SWPMIx->CR,
- (SWPMI_CR_RXMODE | SWPMI_CR_TXMODE),
- (SWPMI_InitStruct->TxBufferingMode | SWPMI_InitStruct->RxBufferingMode));
- }
- /* Else (SWPMI not in deactivated state => return ERROR) */
- else
- {
- status = ERROR;
- }
-
- return status;
- }
-
- /**
- * @brief Set each @ref LL_SWPMI_InitTypeDef field to default value.
- * @param SWPMI_InitStruct pointer to a @ref LL_SWPMI_InitTypeDef structure that contains
- * the configuration information for the SWPMI peripheral.
- * @retval None
- */
- void LL_SWPMI_StructInit(LL_SWPMI_InitTypeDef *SWPMI_InitStruct)
- {
- /* Set SWPMI_InitStruct fields to default values */
- SWPMI_InitStruct->VoltageClass = LL_SWPMI_VOLTAGE_CLASS_C;
- SWPMI_InitStruct->BitRatePrescaler = (uint32_t)0x00000001;
- SWPMI_InitStruct->TxBufferingMode = LL_SWPMI_SW_BUFFER_TX_SINGLE;
- SWPMI_InitStruct->RxBufferingMode = LL_SWPMI_SW_BUFFER_RX_SINGLE;
- }
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
-
- /**
- * @}
- */
-
- #endif /* USE_FULL_LL_DRIVER */
-
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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