1 /** 2 ****************************************************************************** 3 * @file stm32wb0x_hal_irda_ex.h 4 * @author MCD Application Team 5 * @brief Header file of IRDA HAL Extended module. 6 ****************************************************************************** 7 * @attention 8 * 9 * Copyright (c) 2024 STMicroelectronics. 10 * All rights reserved. 11 * 12 * This software is licensed under terms that can be found in the LICENSE file 13 * in the root directory of this software component. 14 * If no LICENSE file comes with this software, it is provided AS-IS. 15 * 16 ****************************************************************************** 17 */ 18 19 /* Define to prevent recursive inclusion -------------------------------------*/ 20 #ifndef STM32WB0x_HAL_IRDA_EX_H 21 #define STM32WB0x_HAL_IRDA_EX_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 /* Includes ------------------------------------------------------------------*/ 28 #include "stm32wb0x_hal_def.h" 29 30 /** @addtogroup STM32WB0x_HAL_Driver 31 * @{ 32 */ 33 34 /** @defgroup IRDAEx IRDAEx 35 * @brief IRDA Extended HAL module driver 36 * @{ 37 */ 38 39 /* Exported types ------------------------------------------------------------*/ 40 /* Exported constants --------------------------------------------------------*/ 41 /** @defgroup IRDAEx_Extended_Exported_Constants IRDAEx Extended Exported Constants 42 * @{ 43 */ 44 45 /** @defgroup IRDAEx_Word_Length IRDAEx Word Length 46 * @{ 47 */ 48 #define IRDA_WORDLENGTH_7B USART_CR1_M1 /*!< 7-bit long frame */ 49 #define IRDA_WORDLENGTH_8B 0x00000000U /*!< 8-bit long frame */ 50 #define IRDA_WORDLENGTH_9B USART_CR1_M0 /*!< 9-bit long frame */ 51 /** 52 * @} 53 */ 54 55 /** 56 * @} 57 */ 58 59 /* Exported macros -----------------------------------------------------------*/ 60 61 /* Private macros ------------------------------------------------------------*/ 62 63 /** @defgroup IRDAEx_Private_Macros IRDAEx Private Macros 64 * @{ 65 */ 66 67 /* An always 16 MHz is requested by USART to maintain fixed baud rate while 68 * system clock is switching from a frequency to another) 69 */ 70 #define IRDA_PERIPHCLK (16000000U) 71 72 /** @brief Compute the mask to apply to retrieve the received data 73 * according to the word length and to the parity bits activation. 74 * @param __HANDLE__ specifies the IRDA Handle. 75 * @retval None, the mask to apply to the associated UART RDR register is stored in (__HANDLE__)->Mask field. 76 */ 77 #define IRDA_MASK_COMPUTATION(__HANDLE__) \ 78 do { \ 79 if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_9B) \ 80 { \ 81 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 82 { \ 83 (__HANDLE__)->Mask = 0x01FFU ; \ 84 } \ 85 else \ 86 { \ 87 (__HANDLE__)->Mask = 0x00FFU ; \ 88 } \ 89 } \ 90 else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_8B) \ 91 { \ 92 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 93 { \ 94 (__HANDLE__)->Mask = 0x00FFU ; \ 95 } \ 96 else \ 97 { \ 98 (__HANDLE__)->Mask = 0x007FU ; \ 99 } \ 100 } \ 101 else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_7B) \ 102 { \ 103 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 104 { \ 105 (__HANDLE__)->Mask = 0x007FU ; \ 106 } \ 107 else \ 108 { \ 109 (__HANDLE__)->Mask = 0x003FU ; \ 110 } \ 111 } \ 112 else \ 113 { \ 114 (__HANDLE__)->Mask = 0x0000U; \ 115 } \ 116 } while(0U) 117 118 /** @brief Ensure that IRDA frame length is valid. 119 * @param __LENGTH__ IRDA frame length. 120 * @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid) 121 */ 122 #define IS_IRDA_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == IRDA_WORDLENGTH_7B) || \ 123 ((__LENGTH__) == IRDA_WORDLENGTH_8B) || \ 124 ((__LENGTH__) == IRDA_WORDLENGTH_9B)) 125 /** 126 * @} 127 */ 128 129 /* Exported functions --------------------------------------------------------*/ 130 131 /** 132 * @} 133 */ 134 135 /** 136 * @} 137 */ 138 139 #ifdef __cplusplus 140 } 141 #endif 142 143 #endif /* STM32WB0x_HAL_IRDA_EX_H */ 144
