annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cec.c @ 726:8f3a8c85a6c4

Bugfix data synchronization after RTE start: In previous version invalid data may be transferred in case the communication is corrupted directly after RTE startup. Root cause was that the data was evaluated without caring if a communication error was reported. In the new version the startup condition and evaluation of data is only done if valid data has been received by the RTE => SPI communication is up and runnig.
author Ideenmodellierer
date Sat, 14 Jan 2023 20:35:40 +0100
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_cec.c
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4 * @author MCD Application Team
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5 * @brief CEC HAL module driver.
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6 * This file provides firmware functions to manage the following
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7 * functionalities of the High Definition Multimedia Interface
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8 * Consumer Electronics Control Peripheral (CEC).
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9 * + Initialization and de-initialization functions
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10 * + IO operation functions
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11 * + Peripheral Control functions
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12 *
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13 *
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14 @verbatim
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15 ===============================================================================
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16 ##### How to use this driver #####
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17 ===============================================================================
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18 [..]
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19 The CEC HAL driver can be used as follow:
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20
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21 (#) Declare a CEC_HandleTypeDef handle structure.
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22 (#) Initialize the CEC low level resources by implementing the HAL_CEC_MspInit ()API:
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23 (##) Enable the CEC interface clock.
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24 (##) CEC pins configuration:
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25 (+++) Enable the clock for the CEC GPIOs.
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26 (+++) Configure these CEC pins as alternate function pull-up.
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27 (##) NVIC configuration if you need to use interrupt process (HAL_CEC_Transmit_IT()
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28 and HAL_CEC_Receive_IT() APIs):
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29 (+++) Configure the CEC interrupt priority.
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30 (+++) Enable the NVIC CEC IRQ handle.
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31 (+++) The specific CEC interrupts (Transmission complete interrupt,
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32 RXNE interrupt and Error Interrupts) will be managed using the macros
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33 __HAL_CEC_ENABLE_IT() and __HAL_CEC_DISABLE_IT() inside the transmit
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34 and receive process.
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35
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36 (#) Program the Signal Free Time (SFT) and SFT option, Tolerance, reception stop in
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37 in case of Bit Rising Error, Error-Bit generation conditions, device logical
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38 address and Listen mode in the hcec Init structure.
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39
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40 (#) Initialize the CEC registers by calling the HAL_CEC_Init() API.
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41
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42 [..]
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43 (@) This API (HAL_CEC_Init()) configures also the low level Hardware (GPIO, CLOCK, CORTEX...)
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44 by calling the customed HAL_CEC_MspInit() API.
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45
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46 @endverbatim
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47 ******************************************************************************
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48 * @attention
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49 *
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50 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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51 *
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52 * Redistribution and use in source and binary forms, with or without modification,
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53 * are permitted provided that the following conditions are met:
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54 * 1. Redistributions of source code must retain the above copyright notice,
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55 * this list of conditions and the following disclaimer.
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56 * 2. Redistributions in binary form must reproduce the above copyright notice,
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57 * this list of conditions and the following disclaimer in the documentation
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58 * and/or other materials provided with the distribution.
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59 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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60 * may be used to endorse or promote products derived from this software
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61 * without specific prior written permission.
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62 *
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63 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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64 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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66 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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69 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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70 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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71 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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72 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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73 *
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74 ******************************************************************************
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75 */
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76
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77 /* Includes ------------------------------------------------------------------*/
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78 #include "stm32f4xx_hal.h"
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79
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80 /** @addtogroup STM32F4xx_HAL_Driver
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81 * @{
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82 */
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83
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84 /** @defgroup CEC CEC
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85 * @brief HAL CEC module driver
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86 * @{
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87 */
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88 #ifdef HAL_CEC_MODULE_ENABLED
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89
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90 #if defined(STM32F446xx)
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91
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92 /* Private typedef -----------------------------------------------------------*/
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93 /* Private define ------------------------------------------------------------*/
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94 /** @defgroup CEC_Private_Constants CEC Private Constants
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95 * @{
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96 */
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97 /**
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98 * @}
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99 */
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100
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101 /* Private macro -------------------------------------------------------------*/
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102 /* Private variables ---------------------------------------------------------*/
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103 /* Private function prototypes -----------------------------------------------*/
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104 /** @defgroup CEC_Private_Functions CEC Private Functions
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105 * @{
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106 */
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107 /**
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108 * @}
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109 */
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110
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111 /* Exported functions ---------------------------------------------------------*/
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112
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113 /** @defgroup CEC_Exported_Functions CEC Exported Functions
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114 * @{
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115 */
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116
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117 /** @defgroup CEC_Exported_Functions_Group1 Initialization and de-initialization functions
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118 * @brief Initialization and Configuration functions
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119 *
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120 @verbatim
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121 ===============================================================================
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122 ##### Initialization and Configuration functions #####
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123 ===============================================================================
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124 [..]
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125 This subsection provides a set of functions allowing to initialize the CEC
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126 (+) The following parameters need to be configured:
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127 (++) SignalFreeTime
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128 (++) Tolerance
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129 (++) BRERxStop (RX stopped or not upon Bit Rising Error)
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130 (++) BREErrorBitGen (Error-Bit generation in case of Bit Rising Error)
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131 (++) LBPEErrorBitGen (Error-Bit generation in case of Long Bit Period Error)
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132 (++) BroadcastMsgNoErrorBitGen (Error-bit generation in case of broadcast message error)
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133 (++) SignalFreeTimeOption (SFT Timer start definition)
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134 (++) OwnAddress (CEC device address)
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135 (++) ListenMode
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136
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137 @endverbatim
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138 * @{
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139 */
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140
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141 /**
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142 * @brief Initializes the CEC mode according to the specified
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143 * parameters in the CEC_InitTypeDef and creates the associated handle .
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144 * @param hcec CEC handle
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145 * @retval HAL status
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146 */
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147 HAL_StatusTypeDef HAL_CEC_Init(CEC_HandleTypeDef *hcec)
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148 {
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149 /* Check the CEC handle allocation */
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150 if((hcec == NULL) ||(hcec->Init.RxBuffer == NULL))
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151 {
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152 return HAL_ERROR;
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153 }
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154
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155 /* Check the parameters */
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156 assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
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157 assert_param(IS_CEC_SIGNALFREETIME(hcec->Init.SignalFreeTime));
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158 assert_param(IS_CEC_TOLERANCE(hcec->Init.Tolerance));
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159 assert_param(IS_CEC_BRERXSTOP(hcec->Init.BRERxStop));
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160 assert_param(IS_CEC_BREERRORBITGEN(hcec->Init.BREErrorBitGen));
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161 assert_param(IS_CEC_LBPEERRORBITGEN(hcec->Init.LBPEErrorBitGen));
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162 assert_param(IS_CEC_BROADCASTERROR_NO_ERRORBIT_GENERATION(hcec->Init.BroadcastMsgNoErrorBitGen));
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163 assert_param(IS_CEC_SFTOP(hcec->Init.SignalFreeTimeOption));
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164 assert_param(IS_CEC_LISTENING_MODE(hcec->Init.ListenMode));
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165 assert_param(IS_CEC_OWN_ADDRESS(hcec->Init.OwnAddress));
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166
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167 if(hcec->gState == HAL_CEC_STATE_RESET)
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168 {
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169 /* Allocate lock resource and initialize it */
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170 hcec->Lock = HAL_UNLOCKED;
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171 /* Init the low level hardware : GPIO, CLOCK */
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172 HAL_CEC_MspInit(hcec);
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173 }
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174 hcec->gState = HAL_CEC_STATE_BUSY;
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175
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176 /* Disable the Peripheral */
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177 __HAL_CEC_DISABLE(hcec);
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178
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179 /* Write to CEC Control Register */
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180 hcec->Instance->CFGR = hcec->Init.SignalFreeTime | hcec->Init.Tolerance | hcec->Init.BRERxStop|\
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181 hcec->Init.BREErrorBitGen | hcec->Init.LBPEErrorBitGen | hcec->Init.BroadcastMsgNoErrorBitGen |\
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182 hcec->Init.SignalFreeTimeOption |((uint32_t)(hcec->Init.OwnAddress)<<16U) |\
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183 hcec->Init.ListenMode;
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184
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185 /* Enable the following CEC Transmission/Reception interrupts as
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186 * well as the following CEC Transmission/Reception Errors interrupts
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187 * Rx Byte Received IT
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188 * End of Reception IT
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189 * Rx overrun
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190 * Rx bit rising error
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191 * Rx short bit period error
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192 * Rx long bit period error
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193 * Rx missing acknowledge
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194 * Tx Byte Request IT
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195 * End of Transmission IT
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196 * Tx Missing Acknowledge IT
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197 * Tx-Error IT
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198 * Tx-Buffer Underrun IT
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199 * Tx arbitration lost */
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200 __HAL_CEC_ENABLE_IT(hcec, CEC_IT_RXBR|CEC_IT_RXEND|CEC_IER_RX_ALL_ERR|CEC_IT_TXBR|CEC_IT_TXEND|CEC_IER_TX_ALL_ERR);
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201
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202 /* Enable the CEC Peripheral */
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203 __HAL_CEC_ENABLE(hcec);
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204
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205 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
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206 hcec->gState = HAL_CEC_STATE_READY;
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207 hcec->RxState = HAL_CEC_STATE_READY;
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208
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209 return HAL_OK;
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210 }
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211
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212 /**
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213 * @brief DeInitializes the CEC peripheral
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214 * @param hcec CEC handle
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215 * @retval HAL status
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216 */
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217 HAL_StatusTypeDef HAL_CEC_DeInit(CEC_HandleTypeDef *hcec)
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218 {
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219 /* Check the CEC handle allocation */
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220 if(hcec == NULL)
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221 {
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222 return HAL_ERROR;
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223 }
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224
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225 /* Check the parameters */
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226 assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
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227
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228 hcec->gState = HAL_CEC_STATE_BUSY;
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229
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230 /* DeInit the low level hardware */
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231 HAL_CEC_MspDeInit(hcec);
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232 /* Disable the Peripheral */
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233 __HAL_CEC_DISABLE(hcec);
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234
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235 /* Clear Flags */
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236 __HAL_CEC_CLEAR_FLAG(hcec,CEC_FLAG_TXEND|CEC_FLAG_TXBR|CEC_FLAG_RXBR|CEC_FLAG_RXEND|CEC_ISR_ALL_ERROR);
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237
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238 /* Disable the following CEC Transmission/Reception interrupts as
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239 * well as the following CEC Transmission/Reception Errors interrupts
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240 * Rx Byte Received IT
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241 * End of Reception IT
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242 * Rx overrun
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243 * Rx bit rising error
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244 * Rx short bit period error
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245 * Rx long bit period error
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246 * Rx missing acknowledge
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247 * Tx Byte Request IT
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248 * End of Transmission IT
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249 * Tx Missing Acknowledge IT
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250 * Tx-Error IT
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251 * Tx-Buffer Underrun IT
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252 * Tx arbitration lost */
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253 __HAL_CEC_DISABLE_IT(hcec, CEC_IT_RXBR|CEC_IT_RXEND|CEC_IER_RX_ALL_ERR|CEC_IT_TXBR|CEC_IT_TXEND|CEC_IER_TX_ALL_ERR);
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254
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255 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
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256 hcec->gState = HAL_CEC_STATE_RESET;
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257 hcec->RxState = HAL_CEC_STATE_RESET;
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258
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259 /* Process Unlock */
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260 __HAL_UNLOCK(hcec);
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261
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262 return HAL_OK;
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263 }
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264
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265 /**
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266 * @brief Initializes the Own Address of the CEC device
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267 * @param hcec CEC handle
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268 * @param CEC_OwnAddress The CEC own address.
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269 * @retval HAL status
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270 */
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271 HAL_StatusTypeDef HAL_CEC_SetDeviceAddress(CEC_HandleTypeDef *hcec, uint16_t CEC_OwnAddress)
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272 {
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273 /* Check the parameters */
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274 assert_param(IS_CEC_OWN_ADDRESS(CEC_OwnAddress));
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275
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276 if ((hcec->gState == HAL_CEC_STATE_READY) && (hcec->RxState == HAL_CEC_STATE_READY))
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277 {
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278 /* Process Locked */
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279 __HAL_LOCK(hcec);
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280
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281 hcec->gState = HAL_CEC_STATE_BUSY;
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282
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283 /* Disable the Peripheral */
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284 __HAL_CEC_DISABLE(hcec);
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285
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286 if(CEC_OwnAddress != CEC_OWN_ADDRESS_NONE)
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287 {
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288 hcec->Instance->CFGR |= ((uint32_t)CEC_OwnAddress<<16U);
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289 }
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290 else
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291 {
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292 hcec->Instance->CFGR &= ~(CEC_CFGR_OAR);
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293 }
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294
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295 hcec->gState = HAL_CEC_STATE_READY;
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296 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
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297
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298 /* Process Unlocked */
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299 __HAL_UNLOCK(hcec);
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300
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301 /* Enable the Peripheral */
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302 __HAL_CEC_ENABLE(hcec);
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303
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304 return HAL_OK;
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305 }
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306 else
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307 {
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308 return HAL_BUSY;
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309 }
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310 }
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311
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312 /**
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313 * @brief CEC MSP Init
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314 * @param hcec CEC handle
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315 * @retval None
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316 */
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317 __weak void HAL_CEC_MspInit(CEC_HandleTypeDef *hcec)
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318 {
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319 /* Prevent unused argument(s) compilation warning */
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320 UNUSED(hcec);
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321 /* NOTE : This function should not be modified, when the callback is needed,
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322 the HAL_CEC_MspInit can be implemented in the user file
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323 */
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324 }
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325
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326 /**
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327 * @brief CEC MSP DeInit
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328 * @param hcec CEC handle
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329 * @retval None
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330 */
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331 __weak void HAL_CEC_MspDeInit(CEC_HandleTypeDef *hcec)
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332 {
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333 /* Prevent unused argument(s) compilation warning */
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334 UNUSED(hcec);
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335 /* NOTE : This function should not be modified, when the callback is needed,
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336 the HAL_CEC_MspDeInit can be implemented in the user file
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337 */
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338 }
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339
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340 /**
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341 * @}
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342 */
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343
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344 /** @defgroup CEC_Exported_Functions_Group2 Input and Output operation functions
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345 * @brief CEC Transmit/Receive functions
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346 *
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347 @verbatim
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348 ===============================================================================
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349 ##### IO operation functions #####
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350 ===============================================================================
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351 This subsection provides a set of functions allowing to manage the CEC data transfers.
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352
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353 (#) The CEC handle must contain the initiator (TX side) and the destination (RX side)
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354 logical addresses (4-bit long addresses, 0x0F for broadcast messages destination)
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355
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356 (#) The communication is performed using Interrupts.
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357 These API's return the HAL status.
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358 The end of the data processing will be indicated through the
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359 dedicated CEC IRQ when using Interrupt mode.
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360 The HAL_CEC_TxCpltCallback(), HAL_CEC_RxCpltCallback() user callbacks
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361 will be executed respectivelly at the end of the transmit or Receive process
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362 The HAL_CEC_ErrorCallback()user callback will be executed when a communication
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363 error is detected
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364
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365 (#) API's with Interrupt are :
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366 (+) HAL_CEC_Transmit_IT()
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367 (+) HAL_CEC_IRQHandler()
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368
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369 (#) A set of User Callbacks are provided:
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370 (+) HAL_CEC_TxCpltCallback()
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371 (+) HAL_CEC_RxCpltCallback()
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372 (+) HAL_CEC_ErrorCallback()
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373
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374 @endverbatim
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375 * @{
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376 */
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377
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378 /**
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379 * @brief Send data in interrupt mode
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380 * @param hcec CEC handle
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381 * @param InitiatorAddress Initiator logical address
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382 * @param DestinationAddress destination logical address
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383 * @param pData pointer to input byte data buffer
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384 * @param Size amount of data to be sent in bytes (without counting the header).
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385 * 0 means only the header is sent (ping operation).
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386 * Maximum TX size is 15 bytes (1 opcode and up to 14 operands).
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387 * @retval HAL status
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388 */
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389 HAL_StatusTypeDef HAL_CEC_Transmit_IT(CEC_HandleTypeDef *hcec, uint8_t InitiatorAddress, uint8_t DestinationAddress, uint8_t *pData, uint32_t Size)
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390 {
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391 /* if the IP isn't already busy and if there is no previous transmission
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392 already pending due to arbitration lost */
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393 if (hcec->gState == HAL_CEC_STATE_READY)
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394 {
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395 if((pData == NULL ) && (Size > 0U))
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396 {
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397 return HAL_ERROR;
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398 }
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399
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400 assert_param(IS_CEC_ADDRESS(DestinationAddress));
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401 assert_param(IS_CEC_ADDRESS(InitiatorAddress));
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402 assert_param(IS_CEC_MSGSIZE(Size));
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403
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404 /* Process Locked */
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405 __HAL_LOCK(hcec);
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406 hcec->pTxBuffPtr = pData;
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407 hcec->gState = HAL_CEC_STATE_BUSY_TX;
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408 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
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409
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410 /* initialize the number of bytes to send,
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411 * 0 means only one header is sent (ping operation) */
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412 hcec->TxXferCount = Size;
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413
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414 /* in case of no payload (Size = 0), sender is only pinging the system;
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415 Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */
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416 if (Size == 0U)
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417 {
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418 __HAL_CEC_LAST_BYTE_TX_SET(hcec);
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419 }
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420
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421 /* send header block */
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422 hcec->Instance->TXDR = ((uint8_t)(InitiatorAddress << CEC_INITIATOR_LSB_POS) |(uint8_t) DestinationAddress);
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423 /* Set TX Start of Message (TXSOM) bit */
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424 __HAL_CEC_FIRST_BYTE_TX_SET(hcec);
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425
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426 /* Process Unlocked */
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427 __HAL_UNLOCK(hcec);
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428
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429 return HAL_OK;
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430
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431 }
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432 else
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433 {
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434 return HAL_BUSY;
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435 }
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436 }
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437
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438 /**
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439 * @brief Get size of the received frame.
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440 * @param hcec CEC handle
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441 * @retval Frame size
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442 */
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443 uint32_t HAL_CEC_GetLastReceivedFrameSize(CEC_HandleTypeDef *hcec)
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444 {
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445 return hcec->RxXferSize;
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446 }
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447
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448 /**
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449 * @brief Change Rx Buffer.
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450 * @param hcec CEC handle
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451 * @param Rxbuffer Rx Buffer
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452 * @note This function can be called only inside the HAL_CEC_RxCpltCallback()
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453 * @retval Frame size
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454 */
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455 void HAL_CEC_ChangeRxBuffer(CEC_HandleTypeDef *hcec, uint8_t* Rxbuffer)
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456 {
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457 hcec->Init.RxBuffer = Rxbuffer;
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458 }
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459
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460 /**
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461 * @brief This function handles CEC interrupt requests.
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462 * @param hcec CEC handle
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463 * @retval None
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464 */
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465 void HAL_CEC_IRQHandler(CEC_HandleTypeDef *hcec)
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466 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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467
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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468 /* save interrupts register for further error or interrupts handling purposes */
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469 uint32_t reg = 0U;
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470 reg = hcec->Instance->ISR;
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471
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
472
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
473 /* ----------------------------Arbitration Lost Management----------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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474 /* CEC TX arbitration error interrupt occurred --------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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475 if((reg & CEC_FLAG_ARBLST) != RESET)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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476 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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477 hcec->ErrorCode = HAL_CEC_ERROR_ARBLST;
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478 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_ARBLST);
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479 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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480
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
481 /* ----------------------------Rx Management----------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
482 /* CEC RX byte received interrupt ---------------------------------------------------*/
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483 if((reg & CEC_FLAG_RXBR) != RESET)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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484 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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485 /* reception is starting */
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486 hcec->RxState = HAL_CEC_STATE_BUSY_RX;
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487 hcec->RxXferSize++;
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488 /* read received byte */
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489 *hcec->Init.RxBuffer++ = hcec->Instance->RXDR;
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490 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXBR);
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491 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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492
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
493 /* CEC RX end received interrupt ---------------------------------------------------*/
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494 if((reg & CEC_FLAG_RXEND) != RESET)
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495 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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496 /* clear IT */
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497 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXEND);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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498
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
499 /* Rx process is completed, restore hcec->RxState to Ready */
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500 hcec->RxState = HAL_CEC_STATE_READY;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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501 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
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502 hcec->Init.RxBuffer -= hcec->RxXferSize;
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503 HAL_CEC_RxCpltCallback(hcec, hcec->RxXferSize);
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504 hcec->RxXferSize = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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505 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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506
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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507 /* ----------------------------Tx Management----------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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508 /* CEC TX byte request interrupt ------------------------------------------------*/
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509 if((reg & CEC_FLAG_TXBR) != RESET)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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510 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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511 if (hcec->TxXferCount == 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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512 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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513 /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */
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514 __HAL_CEC_LAST_BYTE_TX_SET(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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515 hcec->Instance->TXDR = *hcec->pTxBuffPtr++;
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516 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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517 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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518 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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519 hcec->Instance->TXDR = *hcec->pTxBuffPtr++;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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520 hcec->TxXferCount--;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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521 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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522 /* clear Tx-Byte request flag */
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523 __HAL_CEC_CLEAR_FLAG(hcec,CEC_FLAG_TXBR);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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524 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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525
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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526 /* CEC TX end interrupt ------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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527 if((reg & CEC_FLAG_TXEND) != RESET)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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528 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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529 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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530
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
531 /* Tx process is ended, restore hcec->gState to Ready */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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532 hcec->gState = HAL_CEC_STATE_READY;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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533 /* Call the Process Unlocked before calling the Tx call back API to give the possibility to
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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534 start again the Transmission under the Tx call back API */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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535 __HAL_UNLOCK(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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536 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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537 HAL_CEC_TxCpltCallback(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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538 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
539
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
540 /* ----------------------------Rx/Tx Error Management----------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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541 if ((reg & (CEC_ISR_RXOVR|CEC_ISR_BRE|CEC_ISR_SBPE|CEC_ISR_LBPE|CEC_ISR_RXACKE|CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE)) != 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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542 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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543 hcec->ErrorCode = reg;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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544 __HAL_CEC_CLEAR_FLAG(hcec, HAL_CEC_ERROR_RXOVR|HAL_CEC_ERROR_BRE|CEC_FLAG_LBPE|CEC_FLAG_SBPE|HAL_CEC_ERROR_RXACKE|HAL_CEC_ERROR_TXUDR|HAL_CEC_ERROR_TXERR|HAL_CEC_ERROR_TXACKE);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
545
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
546
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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547 if((reg & (CEC_ISR_RXOVR|CEC_ISR_BRE|CEC_ISR_SBPE|CEC_ISR_LBPE|CEC_ISR_RXACKE)) != RESET)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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548 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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549 hcec->Init.RxBuffer-=hcec->RxXferSize;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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550 hcec->RxXferSize = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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551 hcec->RxState = HAL_CEC_STATE_READY;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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552 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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553 else if (((reg & (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE)) != RESET) && ((reg & CEC_ISR_ARBLST) == RESET))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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554 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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555 /* Set the CEC state ready to be able to start again the process */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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556 hcec->gState = HAL_CEC_STATE_READY;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
557 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
558
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
559 /* Error Call Back */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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560 HAL_CEC_ErrorCallback(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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561 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
562
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
563 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
564
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
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565 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
566 * @brief Tx Transfer completed callback
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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567 * @param hcec CEC handle
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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568 * @retval None
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
569 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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570 __weak void HAL_CEC_TxCpltCallback(CEC_HandleTypeDef *hcec)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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571 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
572 /* Prevent unused argument(s) compilation warning */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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573 UNUSED(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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574 /* NOTE : This function should not be modified, when the callback is needed,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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575 the HAL_CEC_TxCpltCallback can be implemented in the user file
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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576 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
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577 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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578
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
579 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
580 * @brief Rx Transfer completed callback
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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581 * @param hcec CEC handle
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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582 * @param RxFrameSize Size of frame
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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583 * @retval None
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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584 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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585 __weak void HAL_CEC_RxCpltCallback(CEC_HandleTypeDef *hcec, uint32_t RxFrameSize)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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586 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
587 /* Prevent unused argument(s) compilation warning */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
588 UNUSED(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
589 UNUSED(RxFrameSize);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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590 /* NOTE : This function should not be modified, when the callback is needed,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
591 the HAL_CEC_RxCpltCallback can be implemented in the user file
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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592 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
593 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
594
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
595 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
596 * @brief CEC error callbacks
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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597 * @param hcec CEC handle
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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598 * @retval None
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
599 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff changeset
600 __weak void HAL_CEC_ErrorCallback(CEC_HandleTypeDef *hcec)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff changeset
601 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
602 /* Prevent unused argument(s) compilation warning */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
603 UNUSED(hcec);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
604 /* NOTE : This function should not be modified, when the callback is needed,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
605 the HAL_CEC_ErrorCallback can be implemented in the user file
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
606 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
607 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
608 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
609 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
610 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
611
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
612 /** @defgroup CEC_Exported_Functions_Group3 Peripheral Control function
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
613 * @brief CEC control functions
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614 *
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615 @verbatim
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616 ===============================================================================
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617 ##### Peripheral Control function #####
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618 ===============================================================================
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619 [..]
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620 This subsection provides a set of functions allowing to control the CEC.
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621 (+) HAL_CEC_GetState() API can be helpful to check in run-time the state of the CEC peripheral.
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622 (+) HAL_CEC_GetError() API can be helpful to check in run-time the error of the CEC peripheral.
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623 @endverbatim
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624 * @{
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625 */
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626 /**
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627 * @brief return the CEC state
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628 * @param hcec pointer to a CEC_HandleTypeDef structure that contains
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629 * the configuration information for the specified CEC module.
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630 * @retval HAL state
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631 */
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632 HAL_CEC_StateTypeDef HAL_CEC_GetState(CEC_HandleTypeDef *hcec)
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633 {
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634 uint32_t temp1 = 0x00U, temp2 = 0x00U;
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635 temp1 = hcec->gState;
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636 temp2 = hcec->RxState;
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637
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638 return (HAL_CEC_StateTypeDef)(temp1 | temp2);
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639 }
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640
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641 /**
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642 * @brief Return the CEC error code
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643 * @param hcec pointer to a CEC_HandleTypeDef structure that contains
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644 * the configuration information for the specified CEC.
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645 * @retval CEC Error Code
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646 */
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647 uint32_t HAL_CEC_GetError(CEC_HandleTypeDef *hcec)
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648 {
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649 return hcec->ErrorCode;
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650 }
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651
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652 /**
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653 * @}
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654 */
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655
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656 /**
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657 * @}
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658 */
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659
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660 #endif /* STM32F446xx */
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661
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662 #endif /* HAL_CEC_MODULE_ENABLED */
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663 /**
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664 * @}
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665 */
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666
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667 /**
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668 * @}
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669 */
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670
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671 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/