301 lines
10 KiB
C
301 lines
10 KiB
C
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/**
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******************************************************************************
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* @file stm32f7xx_ll_gpio.c
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* @author MCD Application Team
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* @brief GPIO LL module driver.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 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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/* Includes ------------------------------------------------------------------*/
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#include "stm32f7xx_ll_gpio.h"
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#include "stm32f7xx_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
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/** @addtogroup STM32F7xx_LL_Driver
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* @{
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*/
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#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK)
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/** @addtogroup GPIO_LL
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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 GPIO_LL_Private_Macros
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* @{
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*/
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#define IS_LL_GPIO_PIN(__VALUE__) (((0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))
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#define IS_LL_GPIO_MODE(__VALUE__) (((__VALUE__) == LL_GPIO_MODE_INPUT) ||\
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((__VALUE__) == LL_GPIO_MODE_OUTPUT) ||\
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((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
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((__VALUE__) == LL_GPIO_MODE_ANALOG))
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#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__) (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL) ||\
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((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))
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#define IS_LL_GPIO_SPEED(__VALUE__) (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW) ||\
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((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM) ||\
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((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH) ||\
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((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))
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#define IS_LL_GPIO_PULL(__VALUE__) (((__VALUE__) == LL_GPIO_PULL_NO) ||\
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((__VALUE__) == LL_GPIO_PULL_UP) ||\
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((__VALUE__) == LL_GPIO_PULL_DOWN))
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#define IS_LL_GPIO_ALTERNATE(__VALUE__) (((__VALUE__) == LL_GPIO_AF_0 ) ||\
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((__VALUE__) == LL_GPIO_AF_1 ) ||\
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((__VALUE__) == LL_GPIO_AF_2 ) ||\
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((__VALUE__) == LL_GPIO_AF_3 ) ||\
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((__VALUE__) == LL_GPIO_AF_4 ) ||\
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((__VALUE__) == LL_GPIO_AF_5 ) ||\
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((__VALUE__) == LL_GPIO_AF_6 ) ||\
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((__VALUE__) == LL_GPIO_AF_7 ) ||\
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((__VALUE__) == LL_GPIO_AF_8 ) ||\
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((__VALUE__) == LL_GPIO_AF_9 ) ||\
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((__VALUE__) == LL_GPIO_AF_10 ) ||\
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((__VALUE__) == LL_GPIO_AF_11 ) ||\
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((__VALUE__) == LL_GPIO_AF_12 ) ||\
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((__VALUE__) == LL_GPIO_AF_13 ) ||\
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((__VALUE__) == LL_GPIO_AF_14 ) ||\
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((__VALUE__) == LL_GPIO_AF_15 ))
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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 GPIO_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup GPIO_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-initialize GPIO registers (Registers restored to their default values).
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* @param GPIOx GPIO Port
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: GPIO registers are de-initialized
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* - ERROR: Wrong GPIO Port
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*/
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ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
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{
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ErrorStatus status = SUCCESS;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
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/* Force and Release reset on clock of GPIOx Port */
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if (GPIOx == GPIOA)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOA);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOA);
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}
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else if (GPIOx == GPIOB)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOB);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOB);
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}
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else if (GPIOx == GPIOC)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOC);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOC);
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}
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#if defined(GPIOD)
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else if (GPIOx == GPIOD)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOD);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOD);
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}
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#endif /* GPIOD */
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#if defined(GPIOE)
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else if (GPIOx == GPIOE)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOE);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOE);
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}
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#endif /* GPIOE */
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#if defined(GPIOF)
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else if (GPIOx == GPIOF)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOF);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOF);
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}
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#endif /* GPIOF */
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#if defined(GPIOG)
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else if (GPIOx == GPIOG)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOG);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOG);
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}
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#endif /* GPIOG */
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#if defined(GPIOH)
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else if (GPIOx == GPIOH)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOH);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOH);
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}
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#endif /* GPIOH */
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#if defined(GPIOI)
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else if (GPIOx == GPIOI)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOI);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOI);
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}
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#endif /* GPIOI */
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#if defined(GPIOJ)
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else if (GPIOx == GPIOJ)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
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}
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#endif /* GPIOJ */
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#if defined(GPIOK)
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else if (GPIOx == GPIOK)
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{
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOK);
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOK);
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}
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#endif /* GPIOK */
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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 GPIO registers according to the specified parameters in GPIO_InitStruct.
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* @param GPIOx GPIO Port
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* @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
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* that contains the configuration information for the specified GPIO peripheral.
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
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* - ERROR: Not applicable
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*/
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ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
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{
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uint32_t pinpos = 0x00000000U;
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uint32_t currentpin = 0x00000000U;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
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assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
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assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
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assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));
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/* ------------------------- Configure the port pins ---------------- */
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/* Initialize pinpos on first pin set */
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pinpos = POSITION_VAL(GPIO_InitStruct->Pin);
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/* Configure the port pins */
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while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
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{
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/* Get current io position */
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currentpin = (GPIO_InitStruct->Pin) & (0x00000001U << pinpos);
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if (currentpin)
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{
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if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
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{
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/* Check Speed mode parameters */
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assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));
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/* Speed mode configuration */
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LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
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/* Check Output mode parameters */
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assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));
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/* Output mode configuration*/
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LL_GPIO_SetPinOutputType(GPIOx, GPIO_InitStruct->Pin, GPIO_InitStruct->OutputType);
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}
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/* Pull-up Pull down resistor configuration*/
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LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);
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if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
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{
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/* Check Alternate parameter */
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assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));
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/* Speed mode configuration */
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if (POSITION_VAL(currentpin) < 0x00000008U)
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{
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LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
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}
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else
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{
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LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
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}
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}
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/* Pin Mode configuration */
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LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
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}
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pinpos++;
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}
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return (SUCCESS);
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}
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/**
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* @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
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* @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
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* whose fields will be set to default values.
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* @retval None
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*/
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void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
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{
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/* Reset GPIO init structure parameters values */
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GPIO_InitStruct->Pin = LL_GPIO_PIN_ALL;
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GPIO_InitStruct->Mode = LL_GPIO_MODE_ANALOG;
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GPIO_InitStruct->Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct->Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct->Alternate = LL_GPIO_AF_0;
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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 /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK) */
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/**
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* @}
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*/
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#endif /* USE_FULL_LL_DRIVER */
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