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/**
******************************************************************************
* @file stm32u0xx_hal_irda_ex.h
* @author MCD Application Team
* @brief Header file of IRDA HAL Extended module.
******************************************************************************
* @attention
*
* Copyright (c) 2023 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32U0xx_HAL_IRDA_EX_H
#define STM32U0xx_HAL_IRDA_EX_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32u0xx_hal_def.h"
/** @addtogroup STM32U0xx_HAL_Driver
* @{
*/
/** @defgroup IRDAEx IRDAEx
* @brief IRDA Extended HAL module driver
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IRDAEx_Extended_Exported_Constants IRDAEx Extended Exported Constants
* @{
*/
/** @defgroup IRDAEx_Word_Length IRDAEx Word Length
* @{
*/
#define IRDA_WORDLENGTH_7B USART_CR1_M1 /*!< 7-bit long frame */
#define IRDA_WORDLENGTH_8B 0x00000000U /*!< 8-bit long frame */
#define IRDA_WORDLENGTH_9B USART_CR1_M0 /*!< 9-bit long frame */
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup IRDAEx_Private_Macros IRDAEx Private Macros
* @{
*/
/** @brief Report the IRDA clock source.
* @param __HANDLE__ specifies the IRDA Handle.
* @param __CLOCKSOURCE__ output variable.
* @retval IRDA clocking source, written in __CLOCKSOURCE__.
*/
#define IRDA_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \
do { \
if((__HANDLE__)->Instance == USART1) \
{ \
(__CLOCKSOURCE__) = (uint32_t)RCC_PERIPHCLK_USART1; \
} \
else if((__HANDLE__)->Instance == USART2) \
{ \
(__CLOCKSOURCE__) = (uint32_t)RCC_PERIPHCLK_USART2; \
} \
else \
{ \
(__CLOCKSOURCE__) = 0U; \
} \
} while(0U)
/** @brief Compute the mask to apply to retrieve the received data
* according to the word length and to the parity bits activation.
* @param __HANDLE__ specifies the IRDA Handle.
* @retval None, the mask to apply to the associated UART RDR register is stored in (__HANDLE__)->Mask field.
*/
#define IRDA_MASK_COMPUTATION(__HANDLE__) \
do { \
if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_9B) \
{ \
if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x01FFU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x00FFU ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_8B) \
{ \
if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x00FFU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x007FU ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_7B) \
{ \
if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x007FU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x003FU ; \
} \
} \
else \
{ \
(__HANDLE__)->Mask = 0x0000U; \
} \
} while(0U)
/** @brief Ensure that IRDA frame length is valid.
* @param __LENGTH__ IRDA frame length.
* @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid)
*/
#define IS_IRDA_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == IRDA_WORDLENGTH_7B) || \
((__LENGTH__) == IRDA_WORDLENGTH_8B) || \
((__LENGTH__) == IRDA_WORDLENGTH_9B))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32U0xx_HAL_IRDA_EX_H */
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