1 /** 2 ****************************************************************************** 3 * @file stm32wlxx_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) 2020 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 STM32WLxx_HAL_IRDA_EX_H 21 #define STM32WLxx_HAL_IRDA_EX_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 /* Includes ------------------------------------------------------------------*/ 28 #include "stm32wlxx_hal_def.h" 29 30 /** @addtogroup STM32WLxx_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 /** @brief Report the IRDA clock source. 68 * @param __HANDLE__ specifies the IRDA Handle. 69 * @param __CLOCKSOURCE__ output variable. 70 * @retval IRDA clocking source, written in __CLOCKSOURCE__. 71 */ 72 #define IRDA_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \ 73 do { \ 74 if((__HANDLE__)->Instance == USART1) \ 75 { \ 76 switch(__HAL_RCC_GET_USART1_SOURCE()) \ 77 { \ 78 case RCC_USART1CLKSOURCE_PCLK2: \ 79 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_PCLK2; \ 80 break; \ 81 case RCC_USART1CLKSOURCE_HSI: \ 82 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_HSI; \ 83 break; \ 84 case RCC_USART1CLKSOURCE_SYSCLK: \ 85 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_SYSCLK; \ 86 break; \ 87 case RCC_USART1CLKSOURCE_LSE: \ 88 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_LSE; \ 89 break; \ 90 default: \ 91 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_UNDEFINED; \ 92 break; \ 93 } \ 94 } \ 95 else if((__HANDLE__)->Instance == USART2) \ 96 { \ 97 switch(__HAL_RCC_GET_USART2_SOURCE()) \ 98 { \ 99 case RCC_USART2CLKSOURCE_PCLK1: \ 100 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_PCLK1; \ 101 break; \ 102 case RCC_USART2CLKSOURCE_HSI: \ 103 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_HSI; \ 104 break; \ 105 case RCC_USART2CLKSOURCE_SYSCLK: \ 106 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_SYSCLK; \ 107 break; \ 108 case RCC_USART2CLKSOURCE_LSE: \ 109 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_LSE; \ 110 break; \ 111 default: \ 112 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_UNDEFINED; \ 113 break; \ 114 } \ 115 } \ 116 else \ 117 { \ 118 (__CLOCKSOURCE__) = IRDA_CLOCKSOURCE_UNDEFINED; \ 119 } \ 120 } while(0U) 121 122 /** @brief Compute the mask to apply to retrieve the received data 123 * according to the word length and to the parity bits activation. 124 * @param __HANDLE__ specifies the IRDA Handle. 125 * @retval None, the mask to apply to the associated UART RDR register is stored in (__HANDLE__)->Mask field. 126 */ 127 #define IRDA_MASK_COMPUTATION(__HANDLE__) \ 128 do { \ 129 if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_9B) \ 130 { \ 131 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 132 { \ 133 (__HANDLE__)->Mask = 0x01FFU ; \ 134 } \ 135 else \ 136 { \ 137 (__HANDLE__)->Mask = 0x00FFU ; \ 138 } \ 139 } \ 140 else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_8B) \ 141 { \ 142 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 143 { \ 144 (__HANDLE__)->Mask = 0x00FFU ; \ 145 } \ 146 else \ 147 { \ 148 (__HANDLE__)->Mask = 0x007FU ; \ 149 } \ 150 } \ 151 else if ((__HANDLE__)->Init.WordLength == IRDA_WORDLENGTH_7B) \ 152 { \ 153 if ((__HANDLE__)->Init.Parity == IRDA_PARITY_NONE) \ 154 { \ 155 (__HANDLE__)->Mask = 0x007FU ; \ 156 } \ 157 else \ 158 { \ 159 (__HANDLE__)->Mask = 0x003FU ; \ 160 } \ 161 } \ 162 else \ 163 { \ 164 (__HANDLE__)->Mask = 0x0000U; \ 165 } \ 166 } while(0U) 167 168 /** @brief Ensure that IRDA frame length is valid. 169 * @param __LENGTH__ IRDA frame length. 170 * @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid) 171 */ 172 #define IS_IRDA_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == IRDA_WORDLENGTH_7B) || \ 173 ((__LENGTH__) == IRDA_WORDLENGTH_8B) || \ 174 ((__LENGTH__) == IRDA_WORDLENGTH_9B)) 175 /** 176 * @} 177 */ 178 179 /* Exported functions --------------------------------------------------------*/ 180 181 /** 182 * @} 183 */ 184 185 /** 186 * @} 187 */ 188 189 #ifdef __cplusplus 190 } 191 #endif 192 193 #endif /* STM32WLxx_HAL_IRDA_EX_H */ 194 195
