mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_STM/TARGET_STM32F7/device/stm32f7xx_ll_exti.c@165:e614a9f1c9e2, 2017-05-26 (annotated)

Committer:
AnnaBridge
Date:
Fri May 26 12:39:01 2017 +0100
Revision:
165:e614a9f1c9e2
Parent:
161:2cc1468da177
Child:
182:a56a73fd2a6f
This updates the lib to the mbed lib v 143

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 161:2cc1468da177 1 /**
<> 161:2cc1468da177 2 ******************************************************************************
<> 161:2cc1468da177 3 * @file stm32f7xx_ll_exti.c
<> 161:2cc1468da177 4 * @author MCD Application Team
<> 161:2cc1468da177 5 * @version V1.2.0
<> 161:2cc1468da177 6 * @date 30-December-2016
<> 161:2cc1468da177 7 * @brief EXTI LL module driver.
<> 161:2cc1468da177 8 ******************************************************************************
<> 161:2cc1468da177 9 * @attention
<> 161:2cc1468da177 10 *
<> 161:2cc1468da177 11 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
<> 161:2cc1468da177 12 *
<> 161:2cc1468da177 13 * Redistribution and use in source and binary forms, with or without modification,
<> 161:2cc1468da177 14 * are permitted provided that the following conditions are met:
<> 161:2cc1468da177 15 * 1. Redistributions of source code must retain the above copyright notice,
<> 161:2cc1468da177 16 * this list of conditions and the following disclaimer.
<> 161:2cc1468da177 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 161:2cc1468da177 18 * this list of conditions and the following disclaimer in the documentation
<> 161:2cc1468da177 19 * and/or other materials provided with the distribution.
<> 161:2cc1468da177 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 161:2cc1468da177 21 * may be used to endorse or promote products derived from this software
<> 161:2cc1468da177 22 * without specific prior written permission.
<> 161:2cc1468da177 23 *
<> 161:2cc1468da177 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 161:2cc1468da177 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 161:2cc1468da177 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 161:2cc1468da177 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 161:2cc1468da177 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 161:2cc1468da177 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 161:2cc1468da177 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 161:2cc1468da177 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 161:2cc1468da177 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 161:2cc1468da177 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 161:2cc1468da177 34 *
<> 161:2cc1468da177 35 ******************************************************************************
<> 161:2cc1468da177 36 */
<> 161:2cc1468da177 37 #if defined(USE_FULL_LL_DRIVER)
<> 161:2cc1468da177 38
<> 161:2cc1468da177 39 /* Includes ------------------------------------------------------------------*/
<> 161:2cc1468da177 40 #include "stm32f7xx_ll_exti.h"
<> 161:2cc1468da177 41 #ifdef USE_FULL_ASSERT
<> 161:2cc1468da177 42 #include "stm32_assert.h"
<> 161:2cc1468da177 43 #else
<> 161:2cc1468da177 44 #define assert_param(expr) ((void)0U)
<> 161:2cc1468da177 45 #endif
<> 161:2cc1468da177 46
<> 161:2cc1468da177 47 /** @addtogroup STM32F7xx_LL_Driver
<> 161:2cc1468da177 48 * @{
<> 161:2cc1468da177 49 */
<> 161:2cc1468da177 50
<> 161:2cc1468da177 51 #if defined (EXTI)
<> 161:2cc1468da177 52
<> 161:2cc1468da177 53 /** @defgroup EXTI_LL EXTI
<> 161:2cc1468da177 54 * @{
<> 161:2cc1468da177 55 */
<> 161:2cc1468da177 56
<> 161:2cc1468da177 57 /* Private types -------------------------------------------------------------*/
<> 161:2cc1468da177 58 /* Private variables ---------------------------------------------------------*/
<> 161:2cc1468da177 59 /* Private constants ---------------------------------------------------------*/
<> 161:2cc1468da177 60 /* Private macros ------------------------------------------------------------*/
<> 161:2cc1468da177 61 /** @addtogroup EXTI_LL_Private_Macros
<> 161:2cc1468da177 62 * @{
<> 161:2cc1468da177 63 */
<> 161:2cc1468da177 64
<> 161:2cc1468da177 65 #define IS_LL_EXTI_LINE_0_31(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_0_31) == 0x00000000U)
<> 161:2cc1468da177 66
<> 161:2cc1468da177 67 #define IS_LL_EXTI_MODE(__VALUE__) (((__VALUE__) == LL_EXTI_MODE_IT) \
<> 161:2cc1468da177 68 || ((__VALUE__) == LL_EXTI_MODE_EVENT) \
<> 161:2cc1468da177 69 || ((__VALUE__) == LL_EXTI_MODE_IT_EVENT))
<> 161:2cc1468da177 70
<> 161:2cc1468da177 71
<> 161:2cc1468da177 72 #define IS_LL_EXTI_TRIGGER(__VALUE__) (((__VALUE__) == LL_EXTI_TRIGGER_NONE) \
<> 161:2cc1468da177 73 || ((__VALUE__) == LL_EXTI_TRIGGER_RISING) \
<> 161:2cc1468da177 74 || ((__VALUE__) == LL_EXTI_TRIGGER_FALLING) \
<> 161:2cc1468da177 75 || ((__VALUE__) == LL_EXTI_TRIGGER_RISING_FALLING))
<> 161:2cc1468da177 76
<> 161:2cc1468da177 77 /**
<> 161:2cc1468da177 78 * @}
<> 161:2cc1468da177 79 */
<> 161:2cc1468da177 80
<> 161:2cc1468da177 81 /* Private function prototypes -----------------------------------------------*/
<> 161:2cc1468da177 82
<> 161:2cc1468da177 83 /* Exported functions --------------------------------------------------------*/
<> 161:2cc1468da177 84 /** @addtogroup EXTI_LL_Exported_Functions
<> 161:2cc1468da177 85 * @{
<> 161:2cc1468da177 86 */
<> 161:2cc1468da177 87
<> 161:2cc1468da177 88 /** @addtogroup EXTI_LL_EF_Init
<> 161:2cc1468da177 89 * @{
<> 161:2cc1468da177 90 */
<> 161:2cc1468da177 91
<> 161:2cc1468da177 92 /**
<> 161:2cc1468da177 93 * @brief De-initialize the EXTI registers to their default reset values.
<> 161:2cc1468da177 94 * @retval An ErrorStatus enumeration value:
<> 161:2cc1468da177 95 * - SUCCESS: EXTI registers are de-initialized
<> 161:2cc1468da177 96 * - ERROR: not applicable
<> 161:2cc1468da177 97 */
<> 161:2cc1468da177 98 uint32_t LL_EXTI_DeInit(void)
<> 161:2cc1468da177 99 {
<> 161:2cc1468da177 100 /* Interrupt mask register set to default reset values */
<> 161:2cc1468da177 101 LL_EXTI_WriteReg(IMR, 0x00000000U);
<> 161:2cc1468da177 102 /* Event mask register set to default reset values */
<> 161:2cc1468da177 103 LL_EXTI_WriteReg(EMR, 0x00000000U);
<> 161:2cc1468da177 104 /* Rising Trigger selection register set to default reset values */
<> 161:2cc1468da177 105 LL_EXTI_WriteReg(RTSR, 0x00000000U);
<> 161:2cc1468da177 106 /* Falling Trigger selection register set to default reset values */
<> 161:2cc1468da177 107 LL_EXTI_WriteReg(FTSR, 0x00000000U);
<> 161:2cc1468da177 108 /* Software interrupt event register set to default reset values */
<> 161:2cc1468da177 109 LL_EXTI_WriteReg(SWIER, 0x00000000U);
<> 161:2cc1468da177 110 /* Pending register set to default reset values */
<> 161:2cc1468da177 111 LL_EXTI_WriteReg(PR, 0x01FFFFFFU);
<> 161:2cc1468da177 112
<> 161:2cc1468da177 113 return SUCCESS;
<> 161:2cc1468da177 114 }
<> 161:2cc1468da177 115
<> 161:2cc1468da177 116 /**
<> 161:2cc1468da177 117 * @brief Initialize the EXTI registers according to the specified parameters in EXTI_InitStruct.
<> 161:2cc1468da177 118 * @param EXTI_InitStruct pointer to a @ref LL_EXTI_InitTypeDef structure.
<> 161:2cc1468da177 119 * @retval An ErrorStatus enumeration value:
<> 161:2cc1468da177 120 * - SUCCESS: EXTI registers are initialized
<> 161:2cc1468da177 121 * - ERROR: not applicable
<> 161:2cc1468da177 122 */
<> 161:2cc1468da177 123 uint32_t LL_EXTI_Init(LL_EXTI_InitTypeDef *EXTI_InitStruct)
<> 161:2cc1468da177 124 {
<> 161:2cc1468da177 125 ErrorStatus status = SUCCESS;
<> 161:2cc1468da177 126 /* Check the parameters */
<> 161:2cc1468da177 127 assert_param(IS_LL_EXTI_LINE_0_31(EXTI_InitStruct->Line_0_31));
<> 161:2cc1468da177 128 assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->LineCommand));
<> 161:2cc1468da177 129 assert_param(IS_LL_EXTI_MODE(EXTI_InitStruct->Mode));
<> 161:2cc1468da177 130
<> 161:2cc1468da177 131 /* ENABLE LineCommand */
<> 161:2cc1468da177 132 if (EXTI_InitStruct->LineCommand != DISABLE)
<> 161:2cc1468da177 133 {
<> 161:2cc1468da177 134 assert_param(IS_LL_EXTI_TRIGGER(EXTI_InitStruct->Trigger));
<> 161:2cc1468da177 135
<> 161:2cc1468da177 136 /* Configure EXTI Lines in range from 0 to 31 */
<> 161:2cc1468da177 137 if (EXTI_InitStruct->Line_0_31 != LL_EXTI_LINE_NONE)
<> 161:2cc1468da177 138 {
<> 161:2cc1468da177 139 switch (EXTI_InitStruct->Mode)
<> 161:2cc1468da177 140 {
<> 161:2cc1468da177 141 case LL_EXTI_MODE_IT:
<> 161:2cc1468da177 142 /* First Disable Event on provided Lines */
<> 161:2cc1468da177 143 LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 144 /* Then Enable IT on provided Lines */
<> 161:2cc1468da177 145 LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 146 break;
<> 161:2cc1468da177 147 case LL_EXTI_MODE_EVENT:
<> 161:2cc1468da177 148 /* First Disable IT on provided Lines */
<> 161:2cc1468da177 149 LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 150 /* Then Enable Event on provided Lines */
<> 161:2cc1468da177 151 LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 152 break;
<> 161:2cc1468da177 153 case LL_EXTI_MODE_IT_EVENT:
<> 161:2cc1468da177 154 /* Directly Enable IT & Event on provided Lines */
<> 161:2cc1468da177 155 LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 156 LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 157 break;
<> 161:2cc1468da177 158 default:
<> 161:2cc1468da177 159 status = ERROR;
<> 161:2cc1468da177 160 break;
<> 161:2cc1468da177 161 }
<> 161:2cc1468da177 162 if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
<> 161:2cc1468da177 163 {
<> 161:2cc1468da177 164 switch (EXTI_InitStruct->Trigger)
<> 161:2cc1468da177 165 {
<> 161:2cc1468da177 166 case LL_EXTI_TRIGGER_RISING:
<> 161:2cc1468da177 167 /* First Disable Falling Trigger on provided Lines */
<> 161:2cc1468da177 168 LL_EXTI_DisableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 169 /* Then Enable Rising Trigger on provided Lines */
<> 161:2cc1468da177 170 LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 171 break;
<> 161:2cc1468da177 172 case LL_EXTI_TRIGGER_FALLING:
<> 161:2cc1468da177 173 /* First Disable Rising Trigger on provided Lines */
<> 161:2cc1468da177 174 LL_EXTI_DisableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 175 /* Then Enable Falling Trigger on provided Lines */
<> 161:2cc1468da177 176 LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 177 break;
<> 161:2cc1468da177 178 case LL_EXTI_TRIGGER_RISING_FALLING:
<> 161:2cc1468da177 179 LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 180 LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 181 break;
<> 161:2cc1468da177 182 default:
<> 161:2cc1468da177 183 status = ERROR;
<> 161:2cc1468da177 184 break;
<> 161:2cc1468da177 185 }
<> 161:2cc1468da177 186 }
<> 161:2cc1468da177 187 }
<> 161:2cc1468da177 188 }
<> 161:2cc1468da177 189 /* DISABLE LineCommand */
<> 161:2cc1468da177 190 else
<> 161:2cc1468da177 191 {
<> 161:2cc1468da177 192 /* De-configure EXTI Lines in range from 0 to 31 */
<> 161:2cc1468da177 193 LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 194 LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
<> 161:2cc1468da177 195 }
<> 161:2cc1468da177 196 return status;
<> 161:2cc1468da177 197 }
<> 161:2cc1468da177 198
<> 161:2cc1468da177 199 /**
<> 161:2cc1468da177 200 * @brief Set each @ref LL_EXTI_InitTypeDef field to default value.
<> 161:2cc1468da177 201 * @param EXTI_InitStruct Pointer to a @ref LL_EXTI_InitTypeDef structure.
<> 161:2cc1468da177 202 * @retval None
<> 161:2cc1468da177 203 */
<> 161:2cc1468da177 204 void LL_EXTI_StructInit(LL_EXTI_InitTypeDef *EXTI_InitStruct)
<> 161:2cc1468da177 205 {
<> 161:2cc1468da177 206 EXTI_InitStruct->Line_0_31 = LL_EXTI_LINE_NONE;
<> 161:2cc1468da177 207 EXTI_InitStruct->LineCommand = DISABLE;
<> 161:2cc1468da177 208 EXTI_InitStruct->Mode = LL_EXTI_MODE_IT;
<> 161:2cc1468da177 209 EXTI_InitStruct->Trigger = LL_EXTI_TRIGGER_FALLING;
<> 161:2cc1468da177 210 }
<> 161:2cc1468da177 211
<> 161:2cc1468da177 212 /**
<> 161:2cc1468da177 213 * @}
<> 161:2cc1468da177 214 */
<> 161:2cc1468da177 215
<> 161:2cc1468da177 216 /**
<> 161:2cc1468da177 217 * @}
<> 161:2cc1468da177 218 */
<> 161:2cc1468da177 219
<> 161:2cc1468da177 220 /**
<> 161:2cc1468da177 221 * @}
<> 161:2cc1468da177 222 */
<> 161:2cc1468da177 223
<> 161:2cc1468da177 224 #endif /* defined (EXTI) */
<> 161:2cc1468da177 225
<> 161:2cc1468da177 226 /**
<> 161:2cc1468da177 227 * @}
<> 161:2cc1468da177 228 */
<> 161:2cc1468da177 229
<> 161:2cc1468da177 230 #endif /* USE_FULL_LL_DRIVER */
<> 161:2cc1468da177 231
<> 161:2cc1468da177 232 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/