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remostat/TinySPL_S103/stm8s_exti.h

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/**
******************************************************************************
* @file stm8s_exti.h
* @author MCD Application Team
* @version V2.2.0
* @date 30-September-2014
* @brief This file contains all functions prototype and macros for the EXTI peripheral.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM8S_EXTI_H
#define __STM8S_EXTI_H
/* Includes ------------------------------------------------------------------*/
#include "stm8s.h"
/* Exported types ------------------------------------------------------------*/
/** @addtogroup EXTI_Exported_Types
* @{
*/
/**
* @brief EXTI Sensitivity values for PORTA to PORTE
*/
typedef enum {
EXTI_SENSITIVITY_FALL_LOW = (uint8_t) 0x00, /*!< Interrupt on Falling edge and Low level */
EXTI_SENSITIVITY_RISE_ONLY = (uint8_t) 0x01, /*!< Interrupt on Rising edge only */
EXTI_SENSITIVITY_FALL_ONLY = (uint8_t) 0x02, /*!< Interrupt on Falling edge only */
EXTI_SENSITIVITY_RISE_FALL = (uint8_t) 0x03 /*!< Interrupt on Rising and Falling edges */
} EXTI_Sensitivity_TypeDef;
/**
* @brief EXTI Sensitivity values for TLI
*/
typedef enum {
EXTI_TLISENSITIVITY_FALL_ONLY = (uint8_t) 0x00, /*!< Top Level Interrupt on Falling edge only */
EXTI_TLISENSITIVITY_RISE_ONLY = (uint8_t) 0x04 /*!< Top Level Interrupt on Rising edge only */
} EXTI_TLISensitivity_TypeDef;
/**
* @brief EXTI PortNum possible values
*/
typedef enum {
EXTI_PORT_GPIOA = (uint8_t) 0x00, /*!< GPIO Port A */
EXTI_PORT_GPIOB = (uint8_t) 0x01, /*!< GPIO Port B */
EXTI_PORT_GPIOC = (uint8_t) 0x02, /*!< GPIO Port C */
EXTI_PORT_GPIOD = (uint8_t) 0x03, /*!< GPIO Port D */
EXTI_PORT_GPIOE = (uint8_t) 0x04 /*!< GPIO Port E */
} EXTI_Port_TypeDef;
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup EXTI_Private_Macros
* @{
*/
/**
* @brief Macro used by the assert function in order to check the different sensitivity values for PORTA to PORTE.
*/
#define IS_EXTI_SENSITIVITY_OK(SensitivityValue) \
(((SensitivityValue) == EXTI_SENSITIVITY_FALL_LOW) || \
((SensitivityValue) == EXTI_SENSITIVITY_RISE_ONLY) || \
((SensitivityValue) == EXTI_SENSITIVITY_FALL_ONLY) || \
((SensitivityValue) == EXTI_SENSITIVITY_RISE_FALL))
/**
* @brief Macro used by the assert function in order to check the different sensitivity values for TLI.
*/
#define IS_EXTI_TLISENSITIVITY_OK(SensitivityValue) \
(((SensitivityValue) == EXTI_TLISENSITIVITY_FALL_ONLY) || \
((SensitivityValue) == EXTI_TLISENSITIVITY_RISE_ONLY))
/**
* @brief Macro used by the assert function in order to check the different Port values
*/
#define IS_EXTI_PORT_OK(PORT) \
(((PORT) == EXTI_PORT_GPIOA) ||\
((PORT) == EXTI_PORT_GPIOB) ||\
((PORT) == EXTI_PORT_GPIOC) ||\
((PORT) == EXTI_PORT_GPIOD) ||\
((PORT) == EXTI_PORT_GPIOE))
/**
* @brief Macro used by the assert function in order to check the different values of the EXTI PinMask
*/
#define IS_EXTI_PINMASK_OK(PinMask) ((((PinMask) & (uint8_t)0x00) == (uint8_t)0x00) && ((PinMask) != (uint8_t)0x00))
/**
* @}
*/
/* Exported functions ------------------------------------------------------- */
/** @addtogroup EXTI_Exported_Functions
* @{
*/
#if 0
void EXTI_DeInit(void);
void EXTI_SetExtIntSensitivity(EXTI_Port_TypeDef Port, EXTI_Sensitivity_TypeDef SensitivityValue);
void EXTI_SetTLISensitivity(EXTI_TLISensitivity_TypeDef SensitivityValue);
EXTI_Sensitivity_TypeDef EXTI_GetExtIntSensitivity(EXTI_Port_TypeDef Port);
EXTI_TLISensitivity_TypeDef EXTI_GetTLISensitivity(void);
#endif
/** @addtogroup STM8S_StdPeriph_Driver
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Public functions ----------------------------------------------------------*/
/**
* @addtogroup EXTI_Public_Functions
* @{
*/
/**
* @brief Deinitializes the external interrupt control registers to their default reset value.
* @param None
* @retval None
*/
inline void EXTI_DeInit(void)
{
EXTI->CR1 = EXTI_CR1_RESET_VALUE;
EXTI->CR2 = EXTI_CR2_RESET_VALUE;
}
/**
* @brief Set the external interrupt sensitivity of the selected port.
* @warning
* - The modification of external interrupt sensitivity is only possible when the interrupts are disabled.
* - The normal behavior is to disable the interrupts before calling this function, and re-enable them after.
* @param Port The port number to access.
* @param SensitivityValue The external interrupt sensitivity value to set.
* @retval None
* @par Required preconditions:
* Global interrupts must be disabled before calling this function.
*/
inline void EXTI_SetExtIntSensitivity(EXTI_Port_TypeDef Port, EXTI_Sensitivity_TypeDef SensitivityValue)
{
/* Check function parameters */
assert_param(IS_EXTI_PORT_OK(Port));
assert_param(IS_EXTI_SENSITIVITY_OK(SensitivityValue));
/* Set external interrupt sensitivity */
switch (Port) {
case EXTI_PORT_GPIOA:
EXTI->CR1 &= (uint8_t) (~EXTI_CR1_PAIS);
EXTI->CR1 |= (uint8_t) (SensitivityValue);
break;
case EXTI_PORT_GPIOB:
EXTI->CR1 &= (uint8_t) (~EXTI_CR1_PBIS);
EXTI->CR1 |= (uint8_t) ((uint8_t) (SensitivityValue) << 2);
break;
case EXTI_PORT_GPIOC:
EXTI->CR1 &= (uint8_t) (~EXTI_CR1_PCIS);
EXTI->CR1 |= (uint8_t) ((uint8_t) (SensitivityValue) << 4);
break;
case EXTI_PORT_GPIOD:
EXTI->CR1 &= (uint8_t) (~EXTI_CR1_PDIS);
EXTI->CR1 |= (uint8_t) ((uint8_t) (SensitivityValue) << 6);
break;
case EXTI_PORT_GPIOE:
EXTI->CR2 &= (uint8_t) (~EXTI_CR2_PEIS);
EXTI->CR2 |= (uint8_t) (SensitivityValue);
break;
default:
break;
}
}
/**
* @brief Set the TLI interrupt sensitivity.
* @param SensitivityValue The TLI interrupt sensitivity value.
* @retval None
* @par Required preconditions:
* Global interrupts must be disabled before calling this function.
*/
inline void EXTI_SetTLISensitivity(EXTI_TLISensitivity_TypeDef SensitivityValue)
{
/* Check function parameters */
assert_param(IS_EXTI_TLISENSITIVITY_OK(SensitivityValue));
/* Set TLI interrupt sensitivity */
EXTI->CR2 &= (uint8_t) (~EXTI_CR2_TLIS);
EXTI->CR2 |= (uint8_t) (SensitivityValue);
}
/**
* @brief Get the external interrupt sensitivity of the selected port.
* @param Port The port number to access.
* @retval EXTI_Sensitivity_TypeDef The external interrupt sensitivity of the selected port.
*/
inline EXTI_Sensitivity_TypeDef EXTI_GetExtIntSensitivity(EXTI_Port_TypeDef Port)
{
uint8_t value = 0;
/* Check function parameters */
assert_param(IS_EXTI_PORT_OK(Port));
switch (Port) {
case EXTI_PORT_GPIOA:
value = (uint8_t) (EXTI->CR1 & EXTI_CR1_PAIS);
break;
case EXTI_PORT_GPIOB:
value = (uint8_t) ((uint8_t) (EXTI->CR1 & EXTI_CR1_PBIS) >> 2);
break;
case EXTI_PORT_GPIOC:
value = (uint8_t) ((uint8_t) (EXTI->CR1 & EXTI_CR1_PCIS) >> 4);
break;
case EXTI_PORT_GPIOD:
value = (uint8_t) ((uint8_t) (EXTI->CR1 & EXTI_CR1_PDIS) >> 6);
break;
case EXTI_PORT_GPIOE:
value = (uint8_t) (EXTI->CR2 & EXTI_CR2_PEIS);
break;
default:
break;
}
return ((EXTI_Sensitivity_TypeDef) value);
}
/**
* @brief Get the TLI interrupt sensitivity.
* @param None
* @retval EXTI_TLISensitivity_TypeDef The TLI interrupt sensitivity read.
*/
inline EXTI_TLISensitivity_TypeDef EXTI_GetTLISensitivity(void)
{
uint8_t value = 0;
/* Get TLI interrupt sensitivity */
value = (uint8_t) (EXTI->CR2 & EXTI_CR2_TLIS);
return ((EXTI_TLISensitivity_TypeDef) value);
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
/**
* @}
*/
#endif /* __STM8S_EXTI_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/