diff options
Diffstat (limited to 'ext/hal/st/stm32cube/stm32f1xx/drivers/src/stm32f1xx_ll_exti.c')
| -rw-r--r-- | ext/hal/st/stm32cube/stm32f1xx/drivers/src/stm32f1xx_ll_exti.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/ext/hal/st/stm32cube/stm32f1xx/drivers/src/stm32f1xx_ll_exti.c b/ext/hal/st/stm32cube/stm32f1xx/drivers/src/stm32f1xx_ll_exti.c new file mode 100644 index 000000000..c3d094ad6 --- /dev/null +++ b/ext/hal/st/stm32cube/stm32f1xx/drivers/src/stm32f1xx_ll_exti.c @@ -0,0 +1,232 @@ +/** + ****************************************************************************** + * @file stm32f1xx_ll_exti.c + * @author MCD Application Team + * @version V1.1.0 + * @date 14-April-2017 + * @brief EXTI LL module driver. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ +#if defined(USE_FULL_LL_DRIVER) + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f1xx_ll_exti.h" +#ifdef USE_FULL_ASSERT +#include "stm32_assert.h" +#else +#define assert_param(expr) ((void)0U) +#endif + +/** @addtogroup STM32F1xx_LL_Driver + * @{ + */ + +#if defined (EXTI) + +/** @defgroup EXTI_LL EXTI + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ +/** @addtogroup EXTI_LL_Private_Macros + * @{ + */ + +#define IS_LL_EXTI_LINE_0_31(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_0_31) == 0x00000000U) + +#define IS_LL_EXTI_MODE(__VALUE__) (((__VALUE__) == LL_EXTI_MODE_IT) \ + || ((__VALUE__) == LL_EXTI_MODE_EVENT) \ + || ((__VALUE__) == LL_EXTI_MODE_IT_EVENT)) + + +#define IS_LL_EXTI_TRIGGER(__VALUE__) (((__VALUE__) == LL_EXTI_TRIGGER_NONE) \ + || ((__VALUE__) == LL_EXTI_TRIGGER_RISING) \ + || ((__VALUE__) == LL_EXTI_TRIGGER_FALLING) \ + || ((__VALUE__) == LL_EXTI_TRIGGER_RISING_FALLING)) + +/** + * @} + */ + +/* Private function prototypes -----------------------------------------------*/ + +/* Exported functions --------------------------------------------------------*/ +/** @addtogroup EXTI_LL_Exported_Functions + * @{ + */ + +/** @addtogroup EXTI_LL_EF_Init + * @{ + */ + +/** + * @brief De-initialize the EXTI registers to their default reset values. + * @retval An ErrorStatus enumeration value: + * - SUCCESS: EXTI registers are de-initialized + * - ERROR: not applicable + */ +uint32_t LL_EXTI_DeInit(void) +{ + /* Interrupt mask register set to default reset values */ + LL_EXTI_WriteReg(IMR, 0x00000000U); + /* Event mask register set to default reset values */ + LL_EXTI_WriteReg(EMR, 0x00000000U); + /* Rising Trigger selection register set to default reset values */ + LL_EXTI_WriteReg(RTSR, 0x00000000U); + /* Falling Trigger selection register set to default reset values */ + LL_EXTI_WriteReg(FTSR, 0x00000000U); + /* Software interrupt event register set to default reset values */ + LL_EXTI_WriteReg(SWIER, 0x00000000U); + /* Pending register clear */ + LL_EXTI_WriteReg(PR, 0x000FFFFFU); + + return SUCCESS; +} + +/** + * @brief Initialize the EXTI registers according to the specified parameters in EXTI_InitStruct. + * @param EXTI_InitStruct pointer to a @ref LL_EXTI_InitTypeDef structure. + * @retval An ErrorStatus enumeration value: + * - SUCCESS: EXTI registers are initialized + * - ERROR: not applicable + */ +uint32_t LL_EXTI_Init(LL_EXTI_InitTypeDef *EXTI_InitStruct) +{ + ErrorStatus status = SUCCESS; + /* Check the parameters */ + assert_param(IS_LL_EXTI_LINE_0_31(EXTI_InitStruct->Line_0_31)); + assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->LineCommand)); + assert_param(IS_LL_EXTI_MODE(EXTI_InitStruct->Mode)); + + /* ENABLE LineCommand */ + if (EXTI_InitStruct->LineCommand != DISABLE) + { + assert_param(IS_LL_EXTI_TRIGGER(EXTI_InitStruct->Trigger)); + + /* Configure EXTI Lines in range from 0 to 31 */ + if (EXTI_InitStruct->Line_0_31 != LL_EXTI_LINE_NONE) + { + switch (EXTI_InitStruct->Mode) + { + case LL_EXTI_MODE_IT: + /* First Disable Event on provided Lines */ + LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31); + /* Then Enable IT on provided Lines */ + LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31); + break; + case LL_EXTI_MODE_EVENT: + /* First Disable IT on provided Lines */ + LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31); + /* Then Enable Event on provided Lines */ + LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31); + break; + case LL_EXTI_MODE_IT_EVENT: + /* Directly Enable IT & Event on provided Lines */ + LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31); + LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31); + break; + default: + status = ERROR; + break; + } + if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE) + { + switch (EXTI_InitStruct->Trigger) + { + case LL_EXTI_TRIGGER_RISING: + /* First Disable Falling Trigger on provided Lines */ + LL_EXTI_DisableFallingTrig_0_31(EXTI_InitStruct->Line_0_31); + /* Then Enable Rising Trigger on provided Lines */ + LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31); + break; + case LL_EXTI_TRIGGER_FALLING: + /* First Disable Rising Trigger on provided Lines */ + LL_EXTI_DisableRisingTrig_0_31(EXTI_InitStruct->Line_0_31); + /* Then Enable Falling Trigger on provided Lines */ + LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31); + break; + case LL_EXTI_TRIGGER_RISING_FALLING: + LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31); + LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31); + break; + default: + status = ERROR; + break; + } + } + } + } + /* DISABLE LineCommand */ + else + { + /* De-configure EXTI Lines in range from 0 to 31 */ + LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31); + LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31); + } + return status; +} + +/** + * @brief Set each @ref LL_EXTI_InitTypeDef field to default value. + * @param EXTI_InitStruct Pointer to a @ref LL_EXTI_InitTypeDef structure. + * @retval None + */ +void LL_EXTI_StructInit(LL_EXTI_InitTypeDef *EXTI_InitStruct) +{ + EXTI_InitStruct->Line_0_31 = LL_EXTI_LINE_NONE; + EXTI_InitStruct->LineCommand = DISABLE; + EXTI_InitStruct->Mode = LL_EXTI_MODE_IT; + EXTI_InitStruct->Trigger = LL_EXTI_TRIGGER_FALLING; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* defined (EXTI) */ + +/** + * @} + */ + +#endif /* USE_FULL_LL_DRIVER */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |