diff options
Diffstat (limited to 'fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_exti.c')
| -rw-r--r-- | fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_exti.c | 559 |
1 files changed, 559 insertions, 0 deletions
diff --git a/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_exti.c b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_exti.c new file mode 100644 index 0000000..1adb8f7 --- /dev/null +++ b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_exti.c @@ -0,0 +1,559 @@ +/**
+ ******************************************************************************
+ * @file stm32f0xx_hal_exti.c
+ * @author MCD Application Team
+ * @brief EXTI HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Extended Interrupts and events controller (EXTI) peripheral:
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### EXTI Peripheral features #####
+ ==============================================================================
+ [..]
+ (+) Each Exti line can be configured within this driver.
+
+ (+) Exti line can be configured in 3 different modes
+ (++) Interrupt
+ (++) Event
+ (++) Both of them
+
+ (+) Configurable Exti lines can be configured with 3 different triggers
+ (++) Rising
+ (++) Falling
+ (++) Both of them
+
+ (+) When set in interrupt mode, configurable Exti lines have two different
+ interrupts pending registers which allow to distinguish which transition
+ occurs:
+ (++) Rising edge pending interrupt
+ (++) Falling
+
+ (+) Exti lines 0 to 15 are linked to gpio pin number 0 to 15. Gpio port can
+ be selected through multiplexer.
+
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+
+ (#) Configure the EXTI line using HAL_EXTI_SetConfigLine().
+ (++) Choose the interrupt line number by setting "Line" member from
+ EXTI_ConfigTypeDef structure.
+ (++) Configure the interrupt and/or event mode using "Mode" member from
+ EXTI_ConfigTypeDef structure.
+ (++) For configurable lines, configure rising and/or falling trigger
+ "Trigger" member from EXTI_ConfigTypeDef structure.
+ (++) For Exti lines linked to gpio, choose gpio port using "GPIOSel"
+ member from GPIO_InitTypeDef structure.
+
+ (#) Get current Exti configuration of a dedicated line using
+ HAL_EXTI_GetConfigLine().
+ (++) Provide exiting handle as parameter.
+ (++) Provide pointer on EXTI_ConfigTypeDef structure as second parameter.
+
+ (#) Clear Exti configuration of a dedicated line using HAL_EXTI_GetConfigLine().
+ (++) Provide exiting handle as parameter.
+
+ (#) Register callback to treat Exti interrupts using HAL_EXTI_RegisterCallback().
+ (++) Provide exiting handle as first parameter.
+ (++) Provide which callback will be registered using one value from
+ EXTI_CallbackIDTypeDef.
+ (++) Provide callback function pointer.
+
+ (#) Get interrupt pending bit using HAL_EXTI_GetPending().
+
+ (#) Clear interrupt pending bit using HAL_EXTI_GetPending().
+
+ (#) Generate software interrupt using HAL_EXTI_GenerateSWI().
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2019 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
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_HAL_Driver
+ * @{
+ */
+
+/** @addtogroup EXTI
+ * @{
+ */
+/** MISRA C:2012 deviation rule has been granted for following rule:
+ * Rule-18.1_b - Medium: Array `EXTICR' 1st subscript interval [0,7] may be out
+ * of bounds [0,3] in following API :
+ * HAL_EXTI_SetConfigLine
+ * HAL_EXTI_GetConfigLine
+ * HAL_EXTI_ClearConfigLine
+ */
+
+#ifdef HAL_EXTI_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private defines -----------------------------------------------------------*/
+/** @defgroup EXTI_Private_Constants EXTI Private Constants
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+
+/** @addtogroup EXTI_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup EXTI_Exported_Functions_Group1
+ * @brief Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Configuration functions #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Set configuration of a dedicated Exti line.
+ * @param hexti Exti handle.
+ * @param pExtiConfig Pointer on EXTI configuration to be set.
+ * @retval HAL Status.
+ */
+HAL_StatusTypeDef HAL_EXTI_SetConfigLine(EXTI_HandleTypeDef *hexti, EXTI_ConfigTypeDef *pExtiConfig)
+{
+ uint32_t regval;
+ uint32_t linepos;
+ uint32_t maskline;
+
+ /* Check null pointer */
+ if ((hexti == NULL) || (pExtiConfig == NULL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check parameters */
+ assert_param(IS_EXTI_LINE(pExtiConfig->Line));
+ assert_param(IS_EXTI_MODE(pExtiConfig->Mode));
+
+ /* Assign line number to handle */
+ hexti->Line = pExtiConfig->Line;
+
+ /* Compute line mask */
+ linepos = (pExtiConfig->Line & EXTI_PIN_MASK);
+ maskline = (1uL << linepos);
+
+ /* Configure triggers for configurable lines */
+ if ((pExtiConfig->Line & EXTI_CONFIG) != 0x00u)
+ {
+ assert_param(IS_EXTI_TRIGGER(pExtiConfig->Trigger));
+
+ /* Configure rising trigger */
+ /* Mask or set line */
+ if ((pExtiConfig->Trigger & EXTI_TRIGGER_RISING) != 0x00u)
+ {
+ EXTI->RTSR |= maskline;
+ }
+ else
+ {
+ EXTI->RTSR &= ~maskline;
+ }
+
+ /* Configure falling trigger */
+ /* Mask or set line */
+ if ((pExtiConfig->Trigger & EXTI_TRIGGER_FALLING) != 0x00u)
+ {
+ EXTI->FTSR |= maskline;
+ }
+ else
+ {
+ EXTI->FTSR &= ~maskline;
+ }
+
+
+ /* Configure gpio port selection in case of gpio exti line */
+ if ((pExtiConfig->Line & EXTI_GPIO) == EXTI_GPIO)
+ {
+ assert_param(IS_EXTI_GPIO_PORT(pExtiConfig->GPIOSel));
+ assert_param(IS_EXTI_GPIO_PIN(linepos));
+
+ regval = SYSCFG->EXTICR[linepos >> 2u];
+ regval &= ~(SYSCFG_EXTICR1_EXTI0 << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
+ regval |= (pExtiConfig->GPIOSel << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
+ SYSCFG->EXTICR[linepos >> 2u] = regval;
+ }
+ }
+
+ /* Configure interrupt mode : read current mode */
+ /* Mask or set line */
+ if ((pExtiConfig->Mode & EXTI_MODE_INTERRUPT) != 0x00u)
+ {
+ EXTI->IMR |= maskline;
+ }
+ else
+ {
+ EXTI->IMR &= ~maskline;
+ }
+
+ /* Configure event mode : read current mode */
+ /* Mask or set line */
+ if ((pExtiConfig->Mode & EXTI_MODE_EVENT) != 0x00u)
+ {
+ EXTI->EMR |= maskline;
+ }
+ else
+ {
+ EXTI->EMR &= ~maskline;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get configuration of a dedicated Exti line.
+ * @param hexti Exti handle.
+ * @param pExtiConfig Pointer on structure to store Exti configuration.
+ * @retval HAL Status.
+ */
+HAL_StatusTypeDef HAL_EXTI_GetConfigLine(EXTI_HandleTypeDef *hexti, EXTI_ConfigTypeDef *pExtiConfig)
+{
+ uint32_t regval;
+ uint32_t linepos;
+ uint32_t maskline;
+
+ /* Check null pointer */
+ if ((hexti == NULL) || (pExtiConfig == NULL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameter */
+ assert_param(IS_EXTI_LINE(hexti->Line));
+
+ /* Store handle line number to configuration structure */
+ pExtiConfig->Line = hexti->Line;
+
+ /* Compute line mask */
+ linepos = (pExtiConfig->Line & EXTI_PIN_MASK);
+ maskline = (1uL << linepos);
+
+ /* 1] Get core mode : interrupt */
+
+ /* Check if selected line is enable */
+ if ((EXTI->IMR & maskline) != 0x00u)
+ {
+ pExtiConfig->Mode = EXTI_MODE_INTERRUPT;
+ }
+ else
+ {
+ pExtiConfig->Mode = EXTI_MODE_NONE;
+ }
+
+ /* Get event mode */
+ /* Check if selected line is enable */
+ if ((EXTI->EMR & maskline) != 0x00u)
+ {
+ pExtiConfig->Mode |= EXTI_MODE_EVENT;
+ }
+
+ /* 2] Get trigger for configurable lines : rising */
+ if ((pExtiConfig->Line & EXTI_CONFIG) != 0x00u)
+ {
+ /* Check if configuration of selected line is enable */
+ if ((EXTI->RTSR & maskline) != 0x00u)
+ {
+ pExtiConfig->Trigger = EXTI_TRIGGER_RISING;
+ }
+ else
+ {
+ pExtiConfig->Trigger = EXTI_TRIGGER_NONE;
+ }
+
+ /* Get falling configuration */
+ /* Check if configuration of selected line is enable */
+ if ((EXTI->FTSR & maskline) != 0x00u)
+ {
+ pExtiConfig->Trigger |= EXTI_TRIGGER_FALLING;
+ }
+
+ /* Get Gpio port selection for gpio lines */
+ if ((pExtiConfig->Line & EXTI_GPIO) == EXTI_GPIO)
+ {
+ assert_param(IS_EXTI_GPIO_PIN(linepos));
+
+ regval = SYSCFG->EXTICR[linepos >> 2u];
+ pExtiConfig->GPIOSel = ((regval << (SYSCFG_EXTICR1_EXTI1_Pos * (3uL - (linepos & 0x03u)))) >> 24);
+ }
+ else
+ {
+ pExtiConfig->GPIOSel = 0x00u;
+ }
+ }
+ else
+ {
+ /* No Trigger selected */
+ pExtiConfig->Trigger = EXTI_TRIGGER_NONE;
+ pExtiConfig->GPIOSel = 0x00u;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Clear whole configuration of a dedicated Exti line.
+ * @param hexti Exti handle.
+ * @retval HAL Status.
+ */
+HAL_StatusTypeDef HAL_EXTI_ClearConfigLine(EXTI_HandleTypeDef *hexti)
+{
+ uint32_t regval;
+ uint32_t linepos;
+ uint32_t maskline;
+
+ /* Check null pointer */
+ if (hexti == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameter */
+ assert_param(IS_EXTI_LINE(hexti->Line));
+
+ /* compute line mask */
+ linepos = (hexti->Line & EXTI_PIN_MASK);
+ maskline = (1uL << linepos);
+
+ /* 1] Clear interrupt mode */
+ EXTI->IMR = (EXTI->IMR & ~maskline);
+
+ /* 2] Clear event mode */
+ EXTI->EMR = (EXTI->EMR & ~maskline);
+
+ /* 3] Clear triggers in case of configurable lines */
+ if ((hexti->Line & EXTI_CONFIG) != 0x00u)
+ {
+ EXTI->RTSR = (EXTI->RTSR & ~maskline);
+ EXTI->FTSR = (EXTI->FTSR & ~maskline);
+
+ /* Get Gpio port selection for gpio lines */
+ if ((hexti->Line & EXTI_GPIO) == EXTI_GPIO)
+ {
+ assert_param(IS_EXTI_GPIO_PIN(linepos));
+
+ regval = SYSCFG->EXTICR[linepos >> 2u];
+ regval &= ~(SYSCFG_EXTICR1_EXTI0 << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
+ SYSCFG->EXTICR[linepos >> 2u] = regval;
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Register callback for a dedicated Exti line.
+ * @param hexti Exti handle.
+ * @param CallbackID User callback identifier.
+ * This parameter can be one of @arg @ref EXTI_CallbackIDTypeDef values.
+ * @param pPendingCbfn function pointer to be stored as callback.
+ * @retval HAL Status.
+ */
+HAL_StatusTypeDef HAL_EXTI_RegisterCallback(EXTI_HandleTypeDef *hexti, EXTI_CallbackIDTypeDef CallbackID, void (*pPendingCbfn)(void))
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ switch (CallbackID)
+ {
+ case HAL_EXTI_COMMON_CB_ID:
+ hexti->PendingCallback = pPendingCbfn;
+ break;
+
+ default:
+ status = HAL_ERROR;
+ break;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Store line number as handle private field.
+ * @param hexti Exti handle.
+ * @param ExtiLine Exti line number.
+ * This parameter can be from 0 to @ref EXTI_LINE_NB.
+ * @retval HAL Status.
+ */
+HAL_StatusTypeDef HAL_EXTI_GetHandle(EXTI_HandleTypeDef *hexti, uint32_t ExtiLine)
+{
+ /* Check the parameters */
+ assert_param(IS_EXTI_LINE(ExtiLine));
+
+ /* Check null pointer */
+ if (hexti == NULL)
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Store line number as handle private field */
+ hexti->Line = ExtiLine;
+
+ return HAL_OK;
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @addtogroup EXTI_Exported_Functions_Group2
+ * @brief EXTI IO functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Handle EXTI interrupt request.
+ * @param hexti Exti handle.
+ * @retval none.
+ */
+void HAL_EXTI_IRQHandler(EXTI_HandleTypeDef *hexti)
+{
+ uint32_t regval;
+ uint32_t maskline;
+
+ /* Compute line mask */
+ maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
+
+ /* Get pending bit */
+ regval = (EXTI->PR & maskline);
+ if (regval != 0x00u)
+ {
+ /* Clear pending bit */
+ EXTI->PR = maskline;
+
+ /* Call callback */
+ if (hexti->PendingCallback != NULL)
+ {
+ hexti->PendingCallback();
+ }
+ }
+}
+
+/**
+ * @brief Get interrupt pending bit of a dedicated line.
+ * @param hexti Exti handle.
+ * @param Edge Specify which pending edge as to be checked.
+ * This parameter can be one of the following values:
+ * @arg @ref EXTI_TRIGGER_RISING_FALLING
+ * This parameter is kept for compatibility with other series.
+ * @retval 1 if interrupt is pending else 0.
+ */
+uint32_t HAL_EXTI_GetPending(EXTI_HandleTypeDef *hexti, uint32_t Edge)
+{
+ uint32_t regval;
+ uint32_t linepos;
+ uint32_t maskline;
+
+ /* Check parameters */
+ assert_param(IS_EXTI_LINE(hexti->Line));
+ assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
+ assert_param(IS_EXTI_PENDING_EDGE(Edge));
+
+ /* Compute line mask */
+ linepos = (hexti->Line & EXTI_PIN_MASK);
+ maskline = (1uL << linepos);
+
+ /* return 1 if bit is set else 0 */
+ regval = ((EXTI->PR & maskline) >> linepos);
+ return regval;
+}
+
+/**
+ * @brief Clear interrupt pending bit of a dedicated line.
+ * @param hexti Exti handle.
+ * @param Edge Specify which pending edge as to be clear.
+ * This parameter can be one of the following values:
+ * @arg @ref EXTI_TRIGGER_RISING_FALLING
+ * This parameter is kept for compatibility with other series.
+ * @retval None.
+ */
+void HAL_EXTI_ClearPending(EXTI_HandleTypeDef *hexti, uint32_t Edge)
+{
+ uint32_t maskline;
+
+ /* Check parameters */
+ assert_param(IS_EXTI_LINE(hexti->Line));
+ assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
+ assert_param(IS_EXTI_PENDING_EDGE(Edge));
+
+ /* Compute line mask */
+ maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
+
+ /* Clear Pending bit */
+ EXTI->PR = maskline;
+}
+
+/**
+ * @brief Generate a software interrupt for a dedicated line.
+ * @param hexti Exti handle.
+ * @retval None.
+ */
+void HAL_EXTI_GenerateSWI(EXTI_HandleTypeDef *hexti)
+{
+ uint32_t maskline;
+
+ /* Check parameters */
+ assert_param(IS_EXTI_LINE(hexti->Line));
+ assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
+
+ /* Compute line mask */
+ maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
+
+ /* Generate Software interrupt */
+ EXTI->SWIER = maskline;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_EXTI_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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