mirror of
https://github.com/IcedRooibos/py32f0-template.git
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239 lines
8.6 KiB
C
239 lines
8.6 KiB
C
/**
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******************************************************************************
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* @file py32f0xx_ll_exti.c
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* @author MCU Application Team
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* @brief EXTI LL module driver.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) Puya Semiconductor Co.
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* All rights reserved.</center></h2>
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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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 "py32f0xx_ll_exti.h"
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#ifdef USE_FULL_ASSERT
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#include "py32_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 PY32F0xx_LL_Driver
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* @{
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*/
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#if defined (EXTI)
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/** @defgroup EXTI_LL EXTI
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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 EXTI_LL_Private_Macros
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* @{
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*/
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#define IS_LL_EXTI_LINE(__VALUE__) ((__VALUE__ == LL_EXTI_LINE_0 ) || \
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(__VALUE__ == LL_EXTI_LINE_1 ) || \
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(__VALUE__ == LL_EXTI_LINE_2 ) || \
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(__VALUE__ == LL_EXTI_LINE_3 ) || \
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(__VALUE__ == LL_EXTI_LINE_4 ) || \
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(__VALUE__ == LL_EXTI_LINE_5 ) || \
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(__VALUE__ == LL_EXTI_LINE_6 ) || \
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(__VALUE__ == LL_EXTI_LINE_7 ) || \
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(__VALUE__ == LL_EXTI_LINE_8 ) || \
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(__VALUE__ == LL_EXTI_LINE_9 ) || \
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(__VALUE__ == LL_EXTI_LINE_10 ) || \
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(__VALUE__ == LL_EXTI_LINE_11 ) || \
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(__VALUE__ == LL_EXTI_LINE_12 ) || \
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(__VALUE__ == LL_EXTI_LINE_13 ) || \
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(__VALUE__ == LL_EXTI_LINE_14 ) || \
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(__VALUE__ == LL_EXTI_LINE_15 ) || \
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(__VALUE__ == LL_EXTI_LINE_16 ) || \
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(__VALUE__ == LL_EXTI_LINE_17 ) || \
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(__VALUE__ == LL_EXTI_LINE_18 ) || \
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(__VALUE__ == LL_EXTI_LINE_19 ) || \
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(__VALUE__ == LL_EXTI_LINE_29 ))
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#define IS_LL_EXTI_MODE(__VALUE__) (((__VALUE__) == LL_EXTI_MODE_IT) \
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|| ((__VALUE__) == LL_EXTI_MODE_EVENT) \
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|| ((__VALUE__) == LL_EXTI_MODE_IT_EVENT))
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#define IS_LL_EXTI_TRIGGER(__VALUE__) (((__VALUE__) == LL_EXTI_TRIGGER_NONE) \
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|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING) \
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|| ((__VALUE__) == LL_EXTI_TRIGGER_FALLING) \
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|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING_FALLING))
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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 EXTI_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup EXTI_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-initialize the EXTI registers to their default reset values.
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* @retval An ErrorStatus enumeration value:
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* - 0x00: EXTI registers are de-initialized
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*/
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uint32_t LL_EXTI_DeInit(void)
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{
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/* Interrupt mask register set to default reset values */
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LL_EXTI_WriteReg(IMR, 0x20080000U);
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/* Event mask register set to default reset values */
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LL_EXTI_WriteReg(EMR, 0x00000000U);
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/* Rising Trigger selection register set to default reset values */
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LL_EXTI_WriteReg(RTSR, 0x00000000U);
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/* Falling Trigger selection register set to default reset values */
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LL_EXTI_WriteReg(FTSR, 0x00000000U);
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/* Software interrupt event register set to default reset values */
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LL_EXTI_WriteReg(SWIER, 0x00000000U);
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/* Pending register set to default reset values */
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LL_EXTI_WriteReg(PR, 0x00007FFFFU);
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return 0x00u;
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}
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/**
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* @brief Initialize the EXTI registers according to the specified parameters in EXTI_InitStruct.
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* @param EXTI_InitStruct pointer to a @ref LL_EXTI_InitTypeDef structure.
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* @retval An ErrorStatus enumeration value:
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* - 0x00: EXTI registers are initialized
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* - any other value : wrong configuration
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*/
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uint32_t LL_EXTI_Init(LL_EXTI_InitTypeDef *EXTI_InitStruct)
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{
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uint32_t status = 0x00u;
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/* Check the parameters */
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assert_param(IS_LL_EXTI_LINE(EXTI_InitStruct->Line));
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assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->LineCommand));
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assert_param(IS_LL_EXTI_MODE(EXTI_InitStruct->Mode));
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/* ENABLE LineCommand */
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if (EXTI_InitStruct->LineCommand != DISABLE)
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{
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assert_param(IS_LL_EXTI_TRIGGER(EXTI_InitStruct->Trigger));
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/* Configure EXTI Lines*/
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if (EXTI_InitStruct->Line != LL_EXTI_LINE_NONE)
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{
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switch (EXTI_InitStruct->Mode)
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{
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case LL_EXTI_MODE_IT:
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/* First Disable Event on provided Lines */
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LL_EXTI_DisableEvent(EXTI_InitStruct->Line);
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/* Then Enable IT on provided Lines */
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LL_EXTI_EnableIT(EXTI_InitStruct->Line);
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break;
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case LL_EXTI_MODE_EVENT:
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/* First Disable IT on provided Lines */
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LL_EXTI_DisableIT(EXTI_InitStruct->Line);
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/* Then Enable Event on provided Lines */
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LL_EXTI_EnableEvent(EXTI_InitStruct->Line);
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break;
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case LL_EXTI_MODE_IT_EVENT:
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/* Directly Enable IT & Event on provided Lines */
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LL_EXTI_EnableIT(EXTI_InitStruct->Line);
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LL_EXTI_EnableEvent(EXTI_InitStruct->Line);
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break;
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default:
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status = 0x01u;
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break;
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}
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if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
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{
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switch (EXTI_InitStruct->Trigger)
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{
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case LL_EXTI_TRIGGER_RISING:
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/* First Disable Falling Trigger on provided Lines */
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LL_EXTI_DisableFallingTrig(EXTI_InitStruct->Line);
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/* Then Enable Rising Trigger on provided Lines */
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LL_EXTI_EnableRisingTrig(EXTI_InitStruct->Line);
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break;
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case LL_EXTI_TRIGGER_FALLING:
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/* First Disable Rising Trigger on provided Lines */
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LL_EXTI_DisableRisingTrig(EXTI_InitStruct->Line);
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/* Then Enable Falling Trigger on provided Lines */
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LL_EXTI_EnableFallingTrig(EXTI_InitStruct->Line);
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break;
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case LL_EXTI_TRIGGER_RISING_FALLING:
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LL_EXTI_EnableRisingTrig(EXTI_InitStruct->Line);
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LL_EXTI_EnableFallingTrig(EXTI_InitStruct->Line);
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break;
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default:
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status |= 0x02u;
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break;
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}
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}
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}
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}
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/* DISABLE LineCommand */
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else
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{
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/* De-configure EXTI Lines*/
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LL_EXTI_DisableIT(EXTI_InitStruct->Line);
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LL_EXTI_DisableEvent(EXTI_InitStruct->Line);
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}
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return status;
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}
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/**
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* @brief Set each @ref LL_EXTI_InitTypeDef field to default value.
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* @param EXTI_InitStruct Pointer to a @ref LL_EXTI_InitTypeDef structure.
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* @retval None
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*/
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void LL_EXTI_StructInit(LL_EXTI_InitTypeDef *EXTI_InitStruct)
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{
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EXTI_InitStruct->Line = LL_EXTI_LINE_NONE;
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EXTI_InitStruct->LineCommand = DISABLE;
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EXTI_InitStruct->Mode = LL_EXTI_MODE_IT;
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EXTI_InitStruct->Trigger = LL_EXTI_TRIGGER_FALLING;
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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 (EXTI) */
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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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/************************ (C) COPYRIGHT Puya *****END OF FILE****/
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