218 lines
7.5 KiB
C
218 lines
7.5 KiB
C
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/**
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******************************************************************************
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* @file stm32f4xx_ll_fmpi2c.c
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* @author MCD Application Team
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* @brief FMPI2C LL module driver.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#if defined(USE_FULL_LL_DRIVER)
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#if defined(FMPI2C_CR1_PE)
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_ll_fmpi2c.h"
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#include "stm32f4xx_ll_bus.h"
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#ifdef USE_FULL_ASSERT
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#include "stm32_assert.h"
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#else
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#define assert_param(expr) ((void)0U)
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#endif /* USE_FULL_ASSERT */
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/** @addtogroup STM32F4xx_LL_Driver
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* @{
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*/
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#if defined (FMPI2C1)
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/** @defgroup FMPI2C_LL FMPI2C
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup FMPI2C_LL_Private_Macros
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* @{
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*/
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#define IS_LL_FMPI2C_PERIPHERAL_MODE(__VALUE__) (((__VALUE__) == LL_FMPI2C_MODE_I2C) || \
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((__VALUE__) == LL_FMPI2C_MODE_SMBUS_HOST) || \
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((__VALUE__) == LL_FMPI2C_MODE_SMBUS_DEVICE) || \
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((__VALUE__) == LL_FMPI2C_MODE_SMBUS_DEVICE_ARP))
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#define IS_LL_FMPI2C_ANALOG_FILTER(__VALUE__) (((__VALUE__) == LL_FMPI2C_ANALOGFILTER_ENABLE) || \
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((__VALUE__) == LL_FMPI2C_ANALOGFILTER_DISABLE))
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#define IS_LL_FMPI2C_DIGITAL_FILTER(__VALUE__) ((__VALUE__) <= 0x0000000FU)
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#define IS_LL_FMPI2C_OWN_ADDRESS1(__VALUE__) ((__VALUE__) <= 0x000003FFU)
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#define IS_LL_FMPI2C_TYPE_ACKNOWLEDGE(__VALUE__) (((__VALUE__) == LL_FMPI2C_ACK) || \
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((__VALUE__) == LL_FMPI2C_NACK))
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#define IS_LL_FMPI2C_OWN_ADDRSIZE(__VALUE__) (((__VALUE__) == LL_FMPI2C_OWNADDRESS1_7BIT) || \
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((__VALUE__) == LL_FMPI2C_OWNADDRESS1_10BIT))
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup FMPI2C_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup FMPI2C_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-initialize the FMPI2C registers to their default reset values.
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* @param FMPI2Cx FMPI2C Instance.
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: FMPI2C registers are de-initialized
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* - ERROR: FMPI2C registers are not de-initialized
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*/
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ErrorStatus LL_FMPI2C_DeInit(FMPI2C_TypeDef *FMPI2Cx)
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{
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ErrorStatus status = SUCCESS;
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/* Check the FMPI2C Instance FMPI2Cx */
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assert_param(IS_FMPI2C_ALL_INSTANCE(FMPI2Cx));
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if (FMPI2Cx == FMPI2C1)
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{
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/* Force reset of FMPI2C clock */
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_FMPI2C1);
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/* Release reset of FMPI2C clock */
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LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_FMPI2C1);
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}
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else
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{
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status = ERROR;
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}
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return status;
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}
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/**
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* @brief Initialize the FMPI2C registers according to the specified parameters in FMPI2C_InitStruct.
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* @param FMPI2Cx FMPI2C Instance.
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* @param FMPI2C_InitStruct pointer to a @ref LL_FMPI2C_InitTypeDef structure.
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: FMPI2C registers are initialized
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* - ERROR: Not applicable
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*/
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ErrorStatus LL_FMPI2C_Init(FMPI2C_TypeDef *FMPI2Cx, LL_FMPI2C_InitTypeDef *FMPI2C_InitStruct)
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{
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/* Check the FMPI2C Instance FMPI2Cx */
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assert_param(IS_FMPI2C_ALL_INSTANCE(FMPI2Cx));
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/* Check the FMPI2C parameters from FMPI2C_InitStruct */
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assert_param(IS_LL_FMPI2C_PERIPHERAL_MODE(FMPI2C_InitStruct->PeripheralMode));
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assert_param(IS_LL_FMPI2C_ANALOG_FILTER(FMPI2C_InitStruct->AnalogFilter));
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assert_param(IS_LL_FMPI2C_DIGITAL_FILTER(FMPI2C_InitStruct->DigitalFilter));
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assert_param(IS_LL_FMPI2C_OWN_ADDRESS1(FMPI2C_InitStruct->OwnAddress1));
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assert_param(IS_LL_FMPI2C_TYPE_ACKNOWLEDGE(FMPI2C_InitStruct->TypeAcknowledge));
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assert_param(IS_LL_FMPI2C_OWN_ADDRSIZE(FMPI2C_InitStruct->OwnAddrSize));
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/* Disable the selected FMPI2Cx Peripheral */
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LL_FMPI2C_Disable(FMPI2Cx);
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/*---------------------------- FMPI2Cx CR1 Configuration ------------------------
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* Configure the analog and digital noise filters with parameters :
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* - AnalogFilter: FMPI2C_CR1_ANFOFF bit
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* - DigitalFilter: FMPI2C_CR1_DNF[3:0] bits
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*/
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LL_FMPI2C_ConfigFilters(FMPI2Cx, FMPI2C_InitStruct->AnalogFilter, FMPI2C_InitStruct->DigitalFilter);
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/*---------------------------- FMPI2Cx TIMINGR Configuration --------------------
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* Configure the SDA setup, hold time and the SCL high, low period with parameter :
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* - Timing: FMPI2C_TIMINGR_PRESC[3:0], FMPI2C_TIMINGR_SCLDEL[3:0], FMPI2C_TIMINGR_SDADEL[3:0],
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* FMPI2C_TIMINGR_SCLH[7:0] and FMPI2C_TIMINGR_SCLL[7:0] bits
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*/
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LL_FMPI2C_SetTiming(FMPI2Cx, FMPI2C_InitStruct->Timing);
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/* Enable the selected FMPI2Cx Peripheral */
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LL_FMPI2C_Enable(FMPI2Cx);
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/*---------------------------- FMPI2Cx OAR1 Configuration -----------------------
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* Disable, Configure and Enable FMPI2Cx device own address 1 with parameters :
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* - OwnAddress1: FMPI2C_OAR1_OA1[9:0] bits
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* - OwnAddrSize: FMPI2C_OAR1_OA1MODE bit
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*/
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LL_FMPI2C_DisableOwnAddress1(FMPI2Cx);
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LL_FMPI2C_SetOwnAddress1(FMPI2Cx, FMPI2C_InitStruct->OwnAddress1, FMPI2C_InitStruct->OwnAddrSize);
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/* OwnAdress1 == 0 is reserved for General Call address */
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if (FMPI2C_InitStruct->OwnAddress1 != 0U)
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{
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LL_FMPI2C_EnableOwnAddress1(FMPI2Cx);
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}
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/*---------------------------- FMPI2Cx MODE Configuration -----------------------
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* Configure FMPI2Cx peripheral mode with parameter :
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* - PeripheralMode: FMPI2C_CR1_SMBDEN and FMPI2C_CR1_SMBHEN bits
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*/
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LL_FMPI2C_SetMode(FMPI2Cx, FMPI2C_InitStruct->PeripheralMode);
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/*---------------------------- FMPI2Cx CR2 Configuration ------------------------
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* Configure the ACKnowledge or Non ACKnowledge condition
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* after the address receive match code or next received byte with parameter :
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* - TypeAcknowledge: FMPI2C_CR2_NACK bit
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*/
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LL_FMPI2C_AcknowledgeNextData(FMPI2Cx, FMPI2C_InitStruct->TypeAcknowledge);
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return SUCCESS;
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}
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/**
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* @brief Set each @ref LL_FMPI2C_InitTypeDef field to default value.
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* @param FMPI2C_InitStruct Pointer to a @ref LL_FMPI2C_InitTypeDef structure.
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* @retval None
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*/
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void LL_FMPI2C_StructInit(LL_FMPI2C_InitTypeDef *FMPI2C_InitStruct)
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{
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/* Set FMPI2C_InitStruct fields to default values */
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FMPI2C_InitStruct->PeripheralMode = LL_FMPI2C_MODE_I2C;
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FMPI2C_InitStruct->Timing = 0U;
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FMPI2C_InitStruct->AnalogFilter = LL_FMPI2C_ANALOGFILTER_ENABLE;
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FMPI2C_InitStruct->DigitalFilter = 0U;
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FMPI2C_InitStruct->OwnAddress1 = 0U;
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FMPI2C_InitStruct->TypeAcknowledge = LL_FMPI2C_NACK;
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FMPI2C_InitStruct->OwnAddrSize = LL_FMPI2C_OWNADDRESS1_7BIT;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* FMPI2C1 */
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/**
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* @}
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*/
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#endif /* FMPI2C_CR1_PE */
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#endif /* USE_FULL_LL_DRIVER */
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