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+/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_smbus_ex.c
+ * @author MCD Application Team
+ * @brief SMBUS Extended HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of SMBUS Extended peripheral:
+ * + Extended features functions
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software is licensed under terms that can be found in the LICENSE file
+ * in the root directory of this software component.
+ * If no LICENSE file comes with this software, it is provided AS-IS.
+ *
+ ******************************************************************************
+ @verbatim
+ ==============================================================================
+ ##### SMBUS peripheral Extended features #####
+ ==============================================================================
+
+ [..] Comparing to other previous devices, the SMBUS interface for STM32H7xx
+ devices contains the following additional features
+
+ (+) Disable or enable wakeup from Stop mode(s)
+ (+) Disable or enable Fast Mode Plus
+
+ ##### How to use this driver #####
+ ==============================================================================
+ (#) Configure the enable or disable of SMBUS Wake Up Mode using the functions :
+ (++) HAL_SMBUSEx_EnableWakeUp()
+ (++) HAL_SMBUSEx_DisableWakeUp()
+ (#) Configure the enable or disable of fast mode plus driving capability using the functions :
+ (++) HAL_SMBUSEx_EnableFastModePlus()
+ (++) HAL_SMBUSEx_DisableFastModePlus()
+ @endverbatim
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/** @addtogroup STM32H7xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup SMBUSEx SMBUSEx
+ * @ingroup RTEMSBSPsARMSTM32H7
+ * @brief SMBUS Extended HAL module driver
+ * @{
+ */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup SMBUSEx_Exported_Functions SMBUS Extended Exported Functions
+ * @ingroup RTEMSBSPsARMSTM32H7
+ * @{
+ */
+
+/** @defgroup SMBUSEx_Exported_Functions_Group2 WakeUp Mode Functions
+ * @ingroup RTEMSBSPsARMSTM32H7
+ * @brief WakeUp Mode Functions
+ *
+@verbatim
+ ===============================================================================
+ ##### WakeUp Mode Functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Configure Wake Up Feature
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable SMBUS wakeup from Stop mode(s).
+ * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains
+ * the configuration information for the specified SMBUSx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SMBUSEx_EnableWakeUp(SMBUS_HandleTypeDef *hsmbus)
+{
+ /* Check the parameters */
+ assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hsmbus->Instance));
+
+ if (hsmbus->State == HAL_SMBUS_STATE_READY)
+ {
+ /* Process Locked */
+ __HAL_LOCK(hsmbus);
+
+ hsmbus->State = HAL_SMBUS_STATE_BUSY;
+
+ /* Disable the selected SMBUS peripheral */
+ __HAL_SMBUS_DISABLE(hsmbus);
+
+ /* Enable wakeup from stop mode */
+ hsmbus->Instance->CR1 |= I2C_CR1_WUPEN;
+
+ __HAL_SMBUS_ENABLE(hsmbus);
+
+ hsmbus->State = HAL_SMBUS_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hsmbus);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Disable SMBUS wakeup from Stop mode(s).
+ * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains
+ * the configuration information for the specified SMBUSx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SMBUSEx_DisableWakeUp(SMBUS_HandleTypeDef *hsmbus)
+{
+ /* Check the parameters */
+ assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hsmbus->Instance));
+
+ if (hsmbus->State == HAL_SMBUS_STATE_READY)
+ {
+ /* Process Locked */
+ __HAL_LOCK(hsmbus);
+
+ hsmbus->State = HAL_SMBUS_STATE_BUSY;
+
+ /* Disable the selected SMBUS peripheral */
+ __HAL_SMBUS_DISABLE(hsmbus);
+
+ /* Disable wakeup from stop mode */
+ hsmbus->Instance->CR1 &= ~(I2C_CR1_WUPEN);
+
+ __HAL_SMBUS_ENABLE(hsmbus);
+
+ hsmbus->State = HAL_SMBUS_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hsmbus);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+/**
+ * @}
+ */
+
+/** @defgroup SMBUSEx_Exported_Functions_Group3 Fast Mode Plus Functions
+ * @ingroup RTEMSBSPsARMSTM32H7
+ * @brief Fast Mode Plus Functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Fast Mode Plus Functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Configure Fast Mode Plus
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable the SMBUS fast mode plus driving capability.
+ * @param ConfigFastModePlus Selects the pin.
+ * This parameter can be one of the @ref SMBUSEx_FastModePlus values
+ * @note For I2C1, fast mode plus driving capability can be enabled on all selected
+ * I2C1 pins using SMBUS_FASTMODEPLUS_I2C1 parameter or independently
+ * on each one of the following pins PB6, PB7, PB8 and PB9.
+ * @note For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability
+ * can be enabled only by using SMBUS_FASTMODEPLUS_I2C1 parameter.
+ * @note For all I2C2 pins fast mode plus driving capability can be enabled
+ * only by using SMBUS_FASTMODEPLUS_I2C2 parameter.
+ * @note For all I2C3 pins fast mode plus driving capability can be enabled
+ * only by using SMBUS_FASTMODEPLUS_I2C3 parameter.
+ * @note For all I2C4 pins fast mode plus driving capability can be enabled
+ * only by using SMBUS_FASTMODEPLUS_I2C4 parameter.
+ * @note For all I2C5 pins fast mode plus driving capability can be enabled
+ * only by using SMBUS_FASTMODEPLUS_I2C5 parameter.
+ * @retval None
+ */
+void HAL_SMBUSEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
+{
+ /* Check the parameter */
+ assert_param(IS_SMBUS_FASTMODEPLUS(ConfigFastModePlus));
+
+ /* Enable SYSCFG clock */
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+ /* Enable fast mode plus driving capability for selected pin */
+ SET_BIT(SYSCFG->PMCR, (uint32_t)ConfigFastModePlus);
+}
+
+/**
+ * @brief Disable the SMBUS fast mode plus driving capability.
+ * @param ConfigFastModePlus Selects the pin.
+ * This parameter can be one of the @ref SMBUSEx_FastModePlus values
+ * @note For I2C1, fast mode plus driving capability can be disabled on all selected
+ * I2C1 pins using SMBUS_FASTMODEPLUS_I2C1 parameter or independently
+ * on each one of the following pins PB6, PB7, PB8 and PB9.
+ * @note For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability
+ * can be disabled only by using SMBUS_FASTMODEPLUS_I2C1 parameter.
+ * @note For all I2C2 pins fast mode plus driving capability can be disabled
+ * only by using SMBUS_FASTMODEPLUS_I2C2 parameter.
+ * @note For all I2C3 pins fast mode plus driving capability can be disabled
+ * only by using SMBUS_FASTMODEPLUS_I2C3 parameter.
+ * @note For all I2C4 pins fast mode plus driving capability can be disabled
+ * only by using SMBUS_FASTMODEPLUS_I2C4 parameter.
+ * @note For all I2C5 pins fast mode plus driving capability can be disabled
+ * only by using SMBUS_FASTMODEPLUS_I2C5 parameter.
+ * @retval None
+ */
+void HAL_SMBUSEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
+{
+ /* Check the parameter */
+ assert_param(IS_SMBUS_FASTMODEPLUS(ConfigFastModePlus));
+
+ /* Enable SYSCFG clock */
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+ /* Disable fast mode plus driving capability for selected pin */
+ CLEAR_BIT(SYSCFG->PMCR, (uint32_t)ConfigFastModePlus);
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
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