MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_cec.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /**
sahilmgandhi 18:6a4db94011d3 2 ******************************************************************************
sahilmgandhi 18:6a4db94011d3 3 * @file stm32f4xx_hal_cec.c
sahilmgandhi 18:6a4db94011d3 4 * @author MCD Application Team
sahilmgandhi 18:6a4db94011d3 5 * @version V1.5.0
sahilmgandhi 18:6a4db94011d3 6 * @date 06-May-2016
sahilmgandhi 18:6a4db94011d3 7 * @brief CEC HAL module driver.
sahilmgandhi 18:6a4db94011d3 8 * This file provides firmware functions to manage the following
sahilmgandhi 18:6a4db94011d3 9 * functionalities of the High Definition Multimedia Interface
sahilmgandhi 18:6a4db94011d3 10 * Consumer Electronics Control Peripheral (CEC).
sahilmgandhi 18:6a4db94011d3 11 * + Initialization and de-initialization functions
sahilmgandhi 18:6a4db94011d3 12 * + IO operation functions
sahilmgandhi 18:6a4db94011d3 13 * + Peripheral Control functions
sahilmgandhi 18:6a4db94011d3 14 *
sahilmgandhi 18:6a4db94011d3 15 *
sahilmgandhi 18:6a4db94011d3 16 @verbatim
sahilmgandhi 18:6a4db94011d3 17 ===============================================================================
sahilmgandhi 18:6a4db94011d3 18 ##### How to use this driver #####
sahilmgandhi 18:6a4db94011d3 19 ===============================================================================
sahilmgandhi 18:6a4db94011d3 20 [..]
sahilmgandhi 18:6a4db94011d3 21 The CEC HAL driver can be used as follow:
sahilmgandhi 18:6a4db94011d3 22
sahilmgandhi 18:6a4db94011d3 23 (#) Declare a CEC_HandleTypeDef handle structure.
sahilmgandhi 18:6a4db94011d3 24 (#) Initialize the CEC low level resources by implementing the HAL_CEC_MspInit ()API:
sahilmgandhi 18:6a4db94011d3 25 (##) Enable the CEC interface clock.
sahilmgandhi 18:6a4db94011d3 26 (##) CEC pins configuration:
sahilmgandhi 18:6a4db94011d3 27 (+) Enable the clock for the CEC GPIOs.
sahilmgandhi 18:6a4db94011d3 28 (+) Configure these CEC pins as alternate function pull-up.
sahilmgandhi 18:6a4db94011d3 29 (##) NVIC configuration if you need to use interrupt process (HAL_CEC_Transmit_IT()
sahilmgandhi 18:6a4db94011d3 30 and HAL_CEC_Receive_IT() APIs):
sahilmgandhi 18:6a4db94011d3 31 (+) Configure the CEC interrupt priority.
sahilmgandhi 18:6a4db94011d3 32 (+) Enable the NVIC CEC IRQ handle.
sahilmgandhi 18:6a4db94011d3 33 (@) The specific CEC interrupts (Transmission complete interrupt,
sahilmgandhi 18:6a4db94011d3 34 RXNE interrupt and Error Interrupts) will be managed using the macros
sahilmgandhi 18:6a4db94011d3 35 __HAL_CEC_ENABLE_IT() and __HAL_CEC_DISABLE_IT() inside the transmit
sahilmgandhi 18:6a4db94011d3 36 and receive process.
sahilmgandhi 18:6a4db94011d3 37
sahilmgandhi 18:6a4db94011d3 38 (#) Program the Signal Free Time (SFT) and SFT option, Tolerance, reception stop in
sahilmgandhi 18:6a4db94011d3 39 in case of Bit Rising Error, Error-Bit generation conditions, device logical
sahilmgandhi 18:6a4db94011d3 40 address and Listen mode in the hcec Init structure.
sahilmgandhi 18:6a4db94011d3 41
sahilmgandhi 18:6a4db94011d3 42 (#) Initialize the CEC registers by calling the HAL_CEC_Init() API.
sahilmgandhi 18:6a4db94011d3 43
sahilmgandhi 18:6a4db94011d3 44 (@) This API (HAL_CEC_Init()) configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
sahilmgandhi 18:6a4db94011d3 45 by calling the customed HAL_CEC_MspInit() API.
sahilmgandhi 18:6a4db94011d3 46
sahilmgandhi 18:6a4db94011d3 47 @endverbatim
sahilmgandhi 18:6a4db94011d3 48 ******************************************************************************
sahilmgandhi 18:6a4db94011d3 49 * @attention
sahilmgandhi 18:6a4db94011d3 50 *
sahilmgandhi 18:6a4db94011d3 51 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
sahilmgandhi 18:6a4db94011d3 52 *
sahilmgandhi 18:6a4db94011d3 53 * Redistribution and use in source and binary forms, with or without modification,
sahilmgandhi 18:6a4db94011d3 54 * are permitted provided that the following conditions are met:
sahilmgandhi 18:6a4db94011d3 55 * 1. Redistributions of source code must retain the above copyright notice,
sahilmgandhi 18:6a4db94011d3 56 * this list of conditions and the following disclaimer.
sahilmgandhi 18:6a4db94011d3 57 * 2. Redistributions in binary form must reproduce the above copyright notice,
sahilmgandhi 18:6a4db94011d3 58 * this list of conditions and the following disclaimer in the documentation
sahilmgandhi 18:6a4db94011d3 59 * and/or other materials provided with the distribution.
sahilmgandhi 18:6a4db94011d3 60 * 3. Neither the name of STMicroelectronics nor the names of its contributors
sahilmgandhi 18:6a4db94011d3 61 * may be used to endorse or promote products derived from this software
sahilmgandhi 18:6a4db94011d3 62 * without specific prior written permission.
sahilmgandhi 18:6a4db94011d3 63 *
sahilmgandhi 18:6a4db94011d3 64 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
sahilmgandhi 18:6a4db94011d3 65 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sahilmgandhi 18:6a4db94011d3 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
sahilmgandhi 18:6a4db94011d3 67 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
sahilmgandhi 18:6a4db94011d3 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sahilmgandhi 18:6a4db94011d3 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
sahilmgandhi 18:6a4db94011d3 70 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
sahilmgandhi 18:6a4db94011d3 71 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
sahilmgandhi 18:6a4db94011d3 72 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
sahilmgandhi 18:6a4db94011d3 73 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sahilmgandhi 18:6a4db94011d3 74 *
sahilmgandhi 18:6a4db94011d3 75 ******************************************************************************
sahilmgandhi 18:6a4db94011d3 76 */
sahilmgandhi 18:6a4db94011d3 77
sahilmgandhi 18:6a4db94011d3 78 /* Includes ------------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 79 #include "stm32f4xx_hal.h"
sahilmgandhi 18:6a4db94011d3 80
sahilmgandhi 18:6a4db94011d3 81 /** @addtogroup STM32F4xx_HAL_Driver
sahilmgandhi 18:6a4db94011d3 82 * @{
sahilmgandhi 18:6a4db94011d3 83 */
sahilmgandhi 18:6a4db94011d3 84
sahilmgandhi 18:6a4db94011d3 85 /** @defgroup CEC CEC
sahilmgandhi 18:6a4db94011d3 86 * @brief HAL CEC module driver
sahilmgandhi 18:6a4db94011d3 87 * @{
sahilmgandhi 18:6a4db94011d3 88 */
sahilmgandhi 18:6a4db94011d3 89 #ifdef HAL_CEC_MODULE_ENABLED
sahilmgandhi 18:6a4db94011d3 90
sahilmgandhi 18:6a4db94011d3 91 #if defined(STM32F446xx)
sahilmgandhi 18:6a4db94011d3 92
sahilmgandhi 18:6a4db94011d3 93 /* Private typedef -----------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 94 /* Private define ------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 95 /** @defgroup CEC_Private_Constants CEC Private Constants
sahilmgandhi 18:6a4db94011d3 96 * @{
sahilmgandhi 18:6a4db94011d3 97 */
sahilmgandhi 18:6a4db94011d3 98 /**
sahilmgandhi 18:6a4db94011d3 99 * @}
sahilmgandhi 18:6a4db94011d3 100 */
sahilmgandhi 18:6a4db94011d3 101
sahilmgandhi 18:6a4db94011d3 102 /* Private macro -------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 103 /* Private variables ---------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 104 /* Private function prototypes -----------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 105 /** @defgroup CEC_Private_Functions CEC Private Functions
sahilmgandhi 18:6a4db94011d3 106 * @{
sahilmgandhi 18:6a4db94011d3 107 */
sahilmgandhi 18:6a4db94011d3 108 /**
sahilmgandhi 18:6a4db94011d3 109 * @}
sahilmgandhi 18:6a4db94011d3 110 */
sahilmgandhi 18:6a4db94011d3 111
sahilmgandhi 18:6a4db94011d3 112 /* Exported functions ---------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 113
sahilmgandhi 18:6a4db94011d3 114 /** @defgroup CEC_Exported_Functions CEC Exported Functions
sahilmgandhi 18:6a4db94011d3 115 * @{
sahilmgandhi 18:6a4db94011d3 116 */
sahilmgandhi 18:6a4db94011d3 117
sahilmgandhi 18:6a4db94011d3 118 /** @defgroup CEC_Exported_Functions_Group1 Initialization and de-initialization functions
sahilmgandhi 18:6a4db94011d3 119 * @brief Initialization and Configuration functions
sahilmgandhi 18:6a4db94011d3 120 *
sahilmgandhi 18:6a4db94011d3 121 @verbatim
sahilmgandhi 18:6a4db94011d3 122 ===============================================================================
sahilmgandhi 18:6a4db94011d3 123 ##### Initialization and Configuration functions #####
sahilmgandhi 18:6a4db94011d3 124 ===============================================================================
sahilmgandhi 18:6a4db94011d3 125 [..]
sahilmgandhi 18:6a4db94011d3 126 This subsection provides a set of functions allowing to initialize the CEC
sahilmgandhi 18:6a4db94011d3 127 (+) The following parameters need to be configured:
sahilmgandhi 18:6a4db94011d3 128 (++) SignalFreeTime
sahilmgandhi 18:6a4db94011d3 129 (++) Tolerance
sahilmgandhi 18:6a4db94011d3 130 (++) BRERxStop (RX stopped or not upon Bit Rising Error)
sahilmgandhi 18:6a4db94011d3 131 (++) BREErrorBitGen (Error-Bit generation in case of Bit Rising Error)
sahilmgandhi 18:6a4db94011d3 132 (++) LBPEErrorBitGen (Error-Bit generation in case of Long Bit Period Error)
sahilmgandhi 18:6a4db94011d3 133 (++) BroadcastMsgNoErrorBitGen (Error-bit generation in case of broadcast message error)
sahilmgandhi 18:6a4db94011d3 134 (++) SignalFreeTimeOption (SFT Timer start definition)
sahilmgandhi 18:6a4db94011d3 135 (++) OwnAddress (CEC device address)
sahilmgandhi 18:6a4db94011d3 136 (++) ListenMode
sahilmgandhi 18:6a4db94011d3 137
sahilmgandhi 18:6a4db94011d3 138 @endverbatim
sahilmgandhi 18:6a4db94011d3 139 * @{
sahilmgandhi 18:6a4db94011d3 140 */
sahilmgandhi 18:6a4db94011d3 141
sahilmgandhi 18:6a4db94011d3 142 /**
sahilmgandhi 18:6a4db94011d3 143 * @brief Initializes the CEC mode according to the specified
sahilmgandhi 18:6a4db94011d3 144 * parameters in the CEC_InitTypeDef and creates the associated handle .
sahilmgandhi 18:6a4db94011d3 145 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 146 * @retval HAL status
sahilmgandhi 18:6a4db94011d3 147 */
sahilmgandhi 18:6a4db94011d3 148 HAL_StatusTypeDef HAL_CEC_Init(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 149 {
sahilmgandhi 18:6a4db94011d3 150 /* Check the CEC handle allocation */
sahilmgandhi 18:6a4db94011d3 151 if((hcec == NULL) ||(hcec->Init.RxBuffer == NULL))
sahilmgandhi 18:6a4db94011d3 152 {
sahilmgandhi 18:6a4db94011d3 153 return HAL_ERROR;
sahilmgandhi 18:6a4db94011d3 154 }
sahilmgandhi 18:6a4db94011d3 155
sahilmgandhi 18:6a4db94011d3 156 /* Check the parameters */
sahilmgandhi 18:6a4db94011d3 157 assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
sahilmgandhi 18:6a4db94011d3 158 assert_param(IS_CEC_SIGNALFREETIME(hcec->Init.SignalFreeTime));
sahilmgandhi 18:6a4db94011d3 159 assert_param(IS_CEC_TOLERANCE(hcec->Init.Tolerance));
sahilmgandhi 18:6a4db94011d3 160 assert_param(IS_CEC_BRERXSTOP(hcec->Init.BRERxStop));
sahilmgandhi 18:6a4db94011d3 161 assert_param(IS_CEC_BREERRORBITGEN(hcec->Init.BREErrorBitGen));
sahilmgandhi 18:6a4db94011d3 162 assert_param(IS_CEC_LBPEERRORBITGEN(hcec->Init.LBPEErrorBitGen));
sahilmgandhi 18:6a4db94011d3 163 assert_param(IS_CEC_BROADCASTERROR_NO_ERRORBIT_GENERATION(hcec->Init.BroadcastMsgNoErrorBitGen));
sahilmgandhi 18:6a4db94011d3 164 assert_param(IS_CEC_SFTOP(hcec->Init.SignalFreeTimeOption));
sahilmgandhi 18:6a4db94011d3 165 assert_param(IS_CEC_LISTENING_MODE(hcec->Init.ListenMode));
sahilmgandhi 18:6a4db94011d3 166 assert_param(IS_CEC_OWN_ADDRESS(hcec->Init.OwnAddress));
sahilmgandhi 18:6a4db94011d3 167
sahilmgandhi 18:6a4db94011d3 168 if(hcec->gState == HAL_CEC_STATE_RESET)
sahilmgandhi 18:6a4db94011d3 169 {
sahilmgandhi 18:6a4db94011d3 170 /* Allocate lock resource and initialize it */
sahilmgandhi 18:6a4db94011d3 171 hcec->Lock = HAL_UNLOCKED;
sahilmgandhi 18:6a4db94011d3 172 /* Init the low level hardware : GPIO, CLOCK */
sahilmgandhi 18:6a4db94011d3 173 HAL_CEC_MspInit(hcec);
sahilmgandhi 18:6a4db94011d3 174 }
sahilmgandhi 18:6a4db94011d3 175 hcec->gState = HAL_CEC_STATE_BUSY;
sahilmgandhi 18:6a4db94011d3 176
sahilmgandhi 18:6a4db94011d3 177 /* Disable the Peripheral */
sahilmgandhi 18:6a4db94011d3 178 __HAL_CEC_DISABLE(hcec);
sahilmgandhi 18:6a4db94011d3 179
sahilmgandhi 18:6a4db94011d3 180 /* Write to CEC Control Register */
sahilmgandhi 18:6a4db94011d3 181 hcec->Instance->CFGR = hcec->Init.SignalFreeTime | hcec->Init.Tolerance | hcec->Init.BRERxStop|\
sahilmgandhi 18:6a4db94011d3 182 hcec->Init.BREErrorBitGen | hcec->Init.LBPEErrorBitGen | hcec->Init.BroadcastMsgNoErrorBitGen |\
sahilmgandhi 18:6a4db94011d3 183 hcec->Init.SignalFreeTimeOption |((uint32_t)(hcec->Init.OwnAddress)<<16U) |\
sahilmgandhi 18:6a4db94011d3 184 hcec->Init.ListenMode;
sahilmgandhi 18:6a4db94011d3 185
sahilmgandhi 18:6a4db94011d3 186 /* Enable the following CEC Transmission/Reception interrupts as
sahilmgandhi 18:6a4db94011d3 187 * well as the following CEC Transmission/Reception Errors interrupts
sahilmgandhi 18:6a4db94011d3 188 * Rx Byte Received IT
sahilmgandhi 18:6a4db94011d3 189 * End of Reception IT
sahilmgandhi 18:6a4db94011d3 190 * Rx overrun
sahilmgandhi 18:6a4db94011d3 191 * Rx bit rising error
sahilmgandhi 18:6a4db94011d3 192 * Rx short bit period error
sahilmgandhi 18:6a4db94011d3 193 * Rx long bit period error
sahilmgandhi 18:6a4db94011d3 194 * Rx missing acknowledge
sahilmgandhi 18:6a4db94011d3 195 * Tx Byte Request IT
sahilmgandhi 18:6a4db94011d3 196 * End of Transmission IT
sahilmgandhi 18:6a4db94011d3 197 * Tx Missing Acknowledge IT
sahilmgandhi 18:6a4db94011d3 198 * Tx-Error IT
sahilmgandhi 18:6a4db94011d3 199 * Tx-Buffer Underrun IT
sahilmgandhi 18:6a4db94011d3 200 * Tx arbitration lost */
sahilmgandhi 18:6a4db94011d3 201 __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);
sahilmgandhi 18:6a4db94011d3 202
sahilmgandhi 18:6a4db94011d3 203 /* Enable the CEC Peripheral */
sahilmgandhi 18:6a4db94011d3 204 __HAL_CEC_ENABLE(hcec);
sahilmgandhi 18:6a4db94011d3 205
sahilmgandhi 18:6a4db94011d3 206 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 207 hcec->gState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 208 hcec->RxState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 209
sahilmgandhi 18:6a4db94011d3 210 return HAL_OK;
sahilmgandhi 18:6a4db94011d3 211 }
sahilmgandhi 18:6a4db94011d3 212
sahilmgandhi 18:6a4db94011d3 213 /**
sahilmgandhi 18:6a4db94011d3 214 * @brief DeInitializes the CEC peripheral
sahilmgandhi 18:6a4db94011d3 215 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 216 * @retval HAL status
sahilmgandhi 18:6a4db94011d3 217 */
sahilmgandhi 18:6a4db94011d3 218 HAL_StatusTypeDef HAL_CEC_DeInit(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 219 {
sahilmgandhi 18:6a4db94011d3 220 /* Check the CEC handle allocation */
sahilmgandhi 18:6a4db94011d3 221 if(hcec == NULL)
sahilmgandhi 18:6a4db94011d3 222 {
sahilmgandhi 18:6a4db94011d3 223 return HAL_ERROR;
sahilmgandhi 18:6a4db94011d3 224 }
sahilmgandhi 18:6a4db94011d3 225
sahilmgandhi 18:6a4db94011d3 226 /* Check the parameters */
sahilmgandhi 18:6a4db94011d3 227 assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
sahilmgandhi 18:6a4db94011d3 228
sahilmgandhi 18:6a4db94011d3 229 hcec->gState = HAL_CEC_STATE_BUSY;
sahilmgandhi 18:6a4db94011d3 230
sahilmgandhi 18:6a4db94011d3 231 /* DeInit the low level hardware */
sahilmgandhi 18:6a4db94011d3 232 HAL_CEC_MspDeInit(hcec);
sahilmgandhi 18:6a4db94011d3 233 /* Disable the Peripheral */
sahilmgandhi 18:6a4db94011d3 234 __HAL_CEC_DISABLE(hcec);
sahilmgandhi 18:6a4db94011d3 235
sahilmgandhi 18:6a4db94011d3 236 /* Clear Flags */
sahilmgandhi 18:6a4db94011d3 237 __HAL_CEC_CLEAR_FLAG(hcec,CEC_FLAG_TXEND|CEC_FLAG_TXBR|CEC_FLAG_RXBR|CEC_FLAG_RXEND|CEC_ISR_ALL_ERROR);
sahilmgandhi 18:6a4db94011d3 238
sahilmgandhi 18:6a4db94011d3 239 /* Disable the following CEC Transmission/Reception interrupts as
sahilmgandhi 18:6a4db94011d3 240 * well as the following CEC Transmission/Reception Errors interrupts
sahilmgandhi 18:6a4db94011d3 241 * Rx Byte Received IT
sahilmgandhi 18:6a4db94011d3 242 * End of Reception IT
sahilmgandhi 18:6a4db94011d3 243 * Rx overrun
sahilmgandhi 18:6a4db94011d3 244 * Rx bit rising error
sahilmgandhi 18:6a4db94011d3 245 * Rx short bit period error
sahilmgandhi 18:6a4db94011d3 246 * Rx long bit period error
sahilmgandhi 18:6a4db94011d3 247 * Rx missing acknowledge
sahilmgandhi 18:6a4db94011d3 248 * Tx Byte Request IT
sahilmgandhi 18:6a4db94011d3 249 * End of Transmission IT
sahilmgandhi 18:6a4db94011d3 250 * Tx Missing Acknowledge IT
sahilmgandhi 18:6a4db94011d3 251 * Tx-Error IT
sahilmgandhi 18:6a4db94011d3 252 * Tx-Buffer Underrun IT
sahilmgandhi 18:6a4db94011d3 253 * Tx arbitration lost */
sahilmgandhi 18:6a4db94011d3 254 __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);
sahilmgandhi 18:6a4db94011d3 255
sahilmgandhi 18:6a4db94011d3 256 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 257 hcec->gState = HAL_CEC_STATE_RESET;
sahilmgandhi 18:6a4db94011d3 258 hcec->RxState = HAL_CEC_STATE_RESET;
sahilmgandhi 18:6a4db94011d3 259
sahilmgandhi 18:6a4db94011d3 260 /* Process Unlock */
sahilmgandhi 18:6a4db94011d3 261 __HAL_UNLOCK(hcec);
sahilmgandhi 18:6a4db94011d3 262
sahilmgandhi 18:6a4db94011d3 263 return HAL_OK;
sahilmgandhi 18:6a4db94011d3 264 }
sahilmgandhi 18:6a4db94011d3 265
sahilmgandhi 18:6a4db94011d3 266 /**
sahilmgandhi 18:6a4db94011d3 267 * @brief Initializes the Own Address of the CEC device
sahilmgandhi 18:6a4db94011d3 268 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 269 * @param CEC_OwnAddress: The CEC own address.
sahilmgandhi 18:6a4db94011d3 270 * @retval HAL status
sahilmgandhi 18:6a4db94011d3 271 */
sahilmgandhi 18:6a4db94011d3 272 HAL_StatusTypeDef HAL_CEC_SetDeviceAddress(CEC_HandleTypeDef *hcec, uint16_t CEC_OwnAddress)
sahilmgandhi 18:6a4db94011d3 273 {
sahilmgandhi 18:6a4db94011d3 274 /* Check the parameters */
sahilmgandhi 18:6a4db94011d3 275 assert_param(IS_CEC_OWN_ADDRESS(CEC_OwnAddress));
sahilmgandhi 18:6a4db94011d3 276
sahilmgandhi 18:6a4db94011d3 277 if ((hcec->gState == HAL_CEC_STATE_READY) && (hcec->RxState == HAL_CEC_STATE_READY))
sahilmgandhi 18:6a4db94011d3 278 {
sahilmgandhi 18:6a4db94011d3 279 /* Process Locked */
sahilmgandhi 18:6a4db94011d3 280 __HAL_LOCK(hcec);
sahilmgandhi 18:6a4db94011d3 281
sahilmgandhi 18:6a4db94011d3 282 hcec->gState = HAL_CEC_STATE_BUSY;
sahilmgandhi 18:6a4db94011d3 283
sahilmgandhi 18:6a4db94011d3 284 /* Disable the Peripheral */
sahilmgandhi 18:6a4db94011d3 285 __HAL_CEC_DISABLE(hcec);
sahilmgandhi 18:6a4db94011d3 286
sahilmgandhi 18:6a4db94011d3 287 if(CEC_OwnAddress != CEC_OWN_ADDRESS_NONE)
sahilmgandhi 18:6a4db94011d3 288 {
sahilmgandhi 18:6a4db94011d3 289 hcec->Instance->CFGR |= ((uint32_t)CEC_OwnAddress<<16);
sahilmgandhi 18:6a4db94011d3 290 }
sahilmgandhi 18:6a4db94011d3 291 else
sahilmgandhi 18:6a4db94011d3 292 {
sahilmgandhi 18:6a4db94011d3 293 hcec->Instance->CFGR &= ~(CEC_CFGR_OAR);
sahilmgandhi 18:6a4db94011d3 294 }
sahilmgandhi 18:6a4db94011d3 295
sahilmgandhi 18:6a4db94011d3 296 hcec->gState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 297 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 298
sahilmgandhi 18:6a4db94011d3 299 /* Process Unlocked */
sahilmgandhi 18:6a4db94011d3 300 __HAL_UNLOCK(hcec);
sahilmgandhi 18:6a4db94011d3 301
sahilmgandhi 18:6a4db94011d3 302 /* Enable the Peripheral */
sahilmgandhi 18:6a4db94011d3 303 __HAL_CEC_ENABLE(hcec);
sahilmgandhi 18:6a4db94011d3 304
sahilmgandhi 18:6a4db94011d3 305 return HAL_OK;
sahilmgandhi 18:6a4db94011d3 306 }
sahilmgandhi 18:6a4db94011d3 307 else
sahilmgandhi 18:6a4db94011d3 308 {
sahilmgandhi 18:6a4db94011d3 309 return HAL_BUSY;
sahilmgandhi 18:6a4db94011d3 310 }
sahilmgandhi 18:6a4db94011d3 311 }
sahilmgandhi 18:6a4db94011d3 312
sahilmgandhi 18:6a4db94011d3 313 /**
sahilmgandhi 18:6a4db94011d3 314 * @brief CEC MSP Init
sahilmgandhi 18:6a4db94011d3 315 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 316 * @retval None
sahilmgandhi 18:6a4db94011d3 317 */
sahilmgandhi 18:6a4db94011d3 318 __weak void HAL_CEC_MspInit(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 319 {
sahilmgandhi 18:6a4db94011d3 320 /* Prevent unused argument(s) compilation warning */
sahilmgandhi 18:6a4db94011d3 321 UNUSED(hcec);
sahilmgandhi 18:6a4db94011d3 322 /* NOTE : This function should not be modified, when the callback is needed,
sahilmgandhi 18:6a4db94011d3 323 the HAL_CEC_MspInit can be implemented in the user file
sahilmgandhi 18:6a4db94011d3 324 */
sahilmgandhi 18:6a4db94011d3 325 }
sahilmgandhi 18:6a4db94011d3 326
sahilmgandhi 18:6a4db94011d3 327 /**
sahilmgandhi 18:6a4db94011d3 328 * @brief CEC MSP DeInit
sahilmgandhi 18:6a4db94011d3 329 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 330 * @retval None
sahilmgandhi 18:6a4db94011d3 331 */
sahilmgandhi 18:6a4db94011d3 332 __weak void HAL_CEC_MspDeInit(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 333 {
sahilmgandhi 18:6a4db94011d3 334 /* Prevent unused argument(s) compilation warning */
sahilmgandhi 18:6a4db94011d3 335 UNUSED(hcec);
sahilmgandhi 18:6a4db94011d3 336 /* NOTE : This function should not be modified, when the callback is needed,
sahilmgandhi 18:6a4db94011d3 337 the HAL_CEC_MspDeInit can be implemented in the user file
sahilmgandhi 18:6a4db94011d3 338 */
sahilmgandhi 18:6a4db94011d3 339 }
sahilmgandhi 18:6a4db94011d3 340
sahilmgandhi 18:6a4db94011d3 341 /**
sahilmgandhi 18:6a4db94011d3 342 * @}
sahilmgandhi 18:6a4db94011d3 343 */
sahilmgandhi 18:6a4db94011d3 344
sahilmgandhi 18:6a4db94011d3 345 /** @defgroup CEC_Exported_Functions_Group2 Input and Output operation functions
sahilmgandhi 18:6a4db94011d3 346 * @brief CEC Transmit/Receive functions
sahilmgandhi 18:6a4db94011d3 347 *
sahilmgandhi 18:6a4db94011d3 348 @verbatim
sahilmgandhi 18:6a4db94011d3 349 ===============================================================================
sahilmgandhi 18:6a4db94011d3 350 ##### IO operation functions #####
sahilmgandhi 18:6a4db94011d3 351 ===============================================================================
sahilmgandhi 18:6a4db94011d3 352 This subsection provides a set of functions allowing to manage the CEC data transfers.
sahilmgandhi 18:6a4db94011d3 353
sahilmgandhi 18:6a4db94011d3 354 (#) The CEC handle must contain the initiator (TX side) and the destination (RX side)
sahilmgandhi 18:6a4db94011d3 355 logical addresses (4-bit long addresses, 0x0F for broadcast messages destination)
sahilmgandhi 18:6a4db94011d3 356
sahilmgandhi 18:6a4db94011d3 357 (#) The communication is performed using Interrupts.
sahilmgandhi 18:6a4db94011d3 358 These API's return the HAL status.
sahilmgandhi 18:6a4db94011d3 359 The end of the data processing will be indicated through the
sahilmgandhi 18:6a4db94011d3 360 dedicated CEC IRQ when using Interrupt mode.
sahilmgandhi 18:6a4db94011d3 361 The HAL_CEC_TxCpltCallback(), HAL_CEC_RxCpltCallback() user callbacks
sahilmgandhi 18:6a4db94011d3 362 will be executed respectivelly at the end of the transmit or Receive process
sahilmgandhi 18:6a4db94011d3 363 The HAL_CEC_ErrorCallback()user callback will be executed when a communication
sahilmgandhi 18:6a4db94011d3 364 error is detected
sahilmgandhi 18:6a4db94011d3 365
sahilmgandhi 18:6a4db94011d3 366 (#) API's with Interrupt are :
sahilmgandhi 18:6a4db94011d3 367 (+) HAL_CEC_Transmit_IT()
sahilmgandhi 18:6a4db94011d3 368 (+) HAL_CEC_IRQHandler()
sahilmgandhi 18:6a4db94011d3 369
sahilmgandhi 18:6a4db94011d3 370 (#) A set of User Callbacks are provided:
sahilmgandhi 18:6a4db94011d3 371 (+) HAL_CEC_TxCpltCallback()
sahilmgandhi 18:6a4db94011d3 372 (+) HAL_CEC_RxCpltCallback()
sahilmgandhi 18:6a4db94011d3 373 (+) HAL_CEC_ErrorCallback()
sahilmgandhi 18:6a4db94011d3 374
sahilmgandhi 18:6a4db94011d3 375 @endverbatim
sahilmgandhi 18:6a4db94011d3 376 * @{
sahilmgandhi 18:6a4db94011d3 377 */
sahilmgandhi 18:6a4db94011d3 378
sahilmgandhi 18:6a4db94011d3 379 /**
sahilmgandhi 18:6a4db94011d3 380 * @brief Send data in interrupt mode
sahilmgandhi 18:6a4db94011d3 381 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 382 * @param DestinationAddress: destination logical address
sahilmgandhi 18:6a4db94011d3 383 * @param pData: pointer to input byte data buffer
sahilmgandhi 18:6a4db94011d3 384 * @param Size: amount of data to be sent in bytes (without counting the header).
sahilmgandhi 18:6a4db94011d3 385 * 0 means only the header is sent (ping operation).
sahilmgandhi 18:6a4db94011d3 386 * Maximum TX size is 15 bytes (1 opcode and up to 14 operands).
sahilmgandhi 18:6a4db94011d3 387 * @retval HAL status
sahilmgandhi 18:6a4db94011d3 388 */
sahilmgandhi 18:6a4db94011d3 389 HAL_StatusTypeDef HAL_CEC_Transmit_IT(CEC_HandleTypeDef *hcec, uint8_t InitiatorAddress, uint8_t DestinationAddress, uint8_t *pData, uint32_t Size)
sahilmgandhi 18:6a4db94011d3 390 {
sahilmgandhi 18:6a4db94011d3 391 /* if the IP isn't already busy and if there is no previous transmission
sahilmgandhi 18:6a4db94011d3 392 already pending due to arbitration lost */
sahilmgandhi 18:6a4db94011d3 393 if (hcec->gState == HAL_CEC_STATE_READY)
sahilmgandhi 18:6a4db94011d3 394 {
sahilmgandhi 18:6a4db94011d3 395 if((pData == NULL ) && (Size > 0U))
sahilmgandhi 18:6a4db94011d3 396 {
sahilmgandhi 18:6a4db94011d3 397 return HAL_ERROR;
sahilmgandhi 18:6a4db94011d3 398 }
sahilmgandhi 18:6a4db94011d3 399
sahilmgandhi 18:6a4db94011d3 400 assert_param(IS_CEC_ADDRESS(DestinationAddress));
sahilmgandhi 18:6a4db94011d3 401 assert_param(IS_CEC_ADDRESS(InitiatorAddress));
sahilmgandhi 18:6a4db94011d3 402 assert_param(IS_CEC_MSGSIZE(Size));
sahilmgandhi 18:6a4db94011d3 403
sahilmgandhi 18:6a4db94011d3 404 /* Process Locked */
sahilmgandhi 18:6a4db94011d3 405 __HAL_LOCK(hcec);
sahilmgandhi 18:6a4db94011d3 406 hcec->pTxBuffPtr = pData;
sahilmgandhi 18:6a4db94011d3 407 hcec->gState = HAL_CEC_STATE_BUSY_TX;
sahilmgandhi 18:6a4db94011d3 408 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 409
sahilmgandhi 18:6a4db94011d3 410 /* initialize the number of bytes to send,
sahilmgandhi 18:6a4db94011d3 411 * 0 means only one header is sent (ping operation) */
sahilmgandhi 18:6a4db94011d3 412 hcec->TxXferCount = Size;
sahilmgandhi 18:6a4db94011d3 413
sahilmgandhi 18:6a4db94011d3 414 /* in case of no payload (Size = 0), sender is only pinging the system;
sahilmgandhi 18:6a4db94011d3 415 Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */
sahilmgandhi 18:6a4db94011d3 416 if (Size == 0U)
sahilmgandhi 18:6a4db94011d3 417 {
sahilmgandhi 18:6a4db94011d3 418 __HAL_CEC_LAST_BYTE_TX_SET(hcec);
sahilmgandhi 18:6a4db94011d3 419 }
sahilmgandhi 18:6a4db94011d3 420
sahilmgandhi 18:6a4db94011d3 421 /* send header block */
sahilmgandhi 18:6a4db94011d3 422 hcec->Instance->TXDR = ((uint8_t)(InitiatorAddress << CEC_INITIATOR_LSB_POS) |(uint8_t) DestinationAddress);
sahilmgandhi 18:6a4db94011d3 423 /* Set TX Start of Message (TXSOM) bit */
sahilmgandhi 18:6a4db94011d3 424 __HAL_CEC_FIRST_BYTE_TX_SET(hcec);
sahilmgandhi 18:6a4db94011d3 425
sahilmgandhi 18:6a4db94011d3 426 /* Process Unlocked */
sahilmgandhi 18:6a4db94011d3 427 __HAL_UNLOCK(hcec);
sahilmgandhi 18:6a4db94011d3 428
sahilmgandhi 18:6a4db94011d3 429 return HAL_OK;
sahilmgandhi 18:6a4db94011d3 430
sahilmgandhi 18:6a4db94011d3 431 }
sahilmgandhi 18:6a4db94011d3 432 else
sahilmgandhi 18:6a4db94011d3 433 {
sahilmgandhi 18:6a4db94011d3 434 return HAL_BUSY;
sahilmgandhi 18:6a4db94011d3 435 }
sahilmgandhi 18:6a4db94011d3 436 }
sahilmgandhi 18:6a4db94011d3 437
sahilmgandhi 18:6a4db94011d3 438 /**
sahilmgandhi 18:6a4db94011d3 439 * @brief Get size of the received frame.
sahilmgandhi 18:6a4db94011d3 440 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 441 * @retval Frame size
sahilmgandhi 18:6a4db94011d3 442 */
sahilmgandhi 18:6a4db94011d3 443 uint32_t HAL_CEC_GetLastReceivedFrameSize(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 444 {
sahilmgandhi 18:6a4db94011d3 445 return hcec->RxXferSize;
sahilmgandhi 18:6a4db94011d3 446 }
sahilmgandhi 18:6a4db94011d3 447
sahilmgandhi 18:6a4db94011d3 448 /**
sahilmgandhi 18:6a4db94011d3 449 * @brief Change Rx Buffer.
sahilmgandhi 18:6a4db94011d3 450 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 451 * @note This function can be called only inside the HAL_CEC_RxCpltCallback()
sahilmgandhi 18:6a4db94011d3 452 * @retval Frame size
sahilmgandhi 18:6a4db94011d3 453 */
sahilmgandhi 18:6a4db94011d3 454 void HAL_CEC_ChangeRxBuffer(CEC_HandleTypeDef *hcec, uint8_t* Rxbuffer)
sahilmgandhi 18:6a4db94011d3 455 {
sahilmgandhi 18:6a4db94011d3 456 hcec->Init.RxBuffer = Rxbuffer;
sahilmgandhi 18:6a4db94011d3 457 }
sahilmgandhi 18:6a4db94011d3 458
sahilmgandhi 18:6a4db94011d3 459 /**
sahilmgandhi 18:6a4db94011d3 460 * @brief This function handles CEC interrupt requests.
sahilmgandhi 18:6a4db94011d3 461 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 462 * @retval None
sahilmgandhi 18:6a4db94011d3 463 */
sahilmgandhi 18:6a4db94011d3 464 void HAL_CEC_IRQHandler(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 465 {
sahilmgandhi 18:6a4db94011d3 466
sahilmgandhi 18:6a4db94011d3 467 /* save interrupts register for further error or interrupts handling purposes */
sahilmgandhi 18:6a4db94011d3 468 uint32_t reg = 0U;
sahilmgandhi 18:6a4db94011d3 469 reg = hcec->Instance->ISR;
sahilmgandhi 18:6a4db94011d3 470
sahilmgandhi 18:6a4db94011d3 471
sahilmgandhi 18:6a4db94011d3 472 /* ----------------------------Arbitration Lost Management----------------------------------*/
sahilmgandhi 18:6a4db94011d3 473 /* CEC TX arbitration error interrupt occurred --------------------------------------*/
sahilmgandhi 18:6a4db94011d3 474 if((reg & CEC_FLAG_ARBLST) != RESET)
sahilmgandhi 18:6a4db94011d3 475 {
sahilmgandhi 18:6a4db94011d3 476 hcec->ErrorCode = HAL_CEC_ERROR_ARBLST;
sahilmgandhi 18:6a4db94011d3 477 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_ARBLST);
sahilmgandhi 18:6a4db94011d3 478 }
sahilmgandhi 18:6a4db94011d3 479
sahilmgandhi 18:6a4db94011d3 480 /* ----------------------------Rx Management----------------------------------*/
sahilmgandhi 18:6a4db94011d3 481 /* CEC RX byte received interrupt ---------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 482 if((reg & CEC_FLAG_RXBR) != RESET)
sahilmgandhi 18:6a4db94011d3 483 {
sahilmgandhi 18:6a4db94011d3 484 /* reception is starting */
sahilmgandhi 18:6a4db94011d3 485 hcec->RxState = HAL_CEC_STATE_BUSY_RX;
sahilmgandhi 18:6a4db94011d3 486 hcec->RxXferSize++;
sahilmgandhi 18:6a4db94011d3 487 /* read received byte */
sahilmgandhi 18:6a4db94011d3 488 *hcec->Init.RxBuffer++ = hcec->Instance->RXDR;
sahilmgandhi 18:6a4db94011d3 489 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXBR);
sahilmgandhi 18:6a4db94011d3 490 }
sahilmgandhi 18:6a4db94011d3 491
sahilmgandhi 18:6a4db94011d3 492 /* CEC RX end received interrupt ---------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 493 if((reg & CEC_FLAG_RXEND) != RESET)
sahilmgandhi 18:6a4db94011d3 494 {
sahilmgandhi 18:6a4db94011d3 495 /* clear IT */
sahilmgandhi 18:6a4db94011d3 496 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXEND);
sahilmgandhi 18:6a4db94011d3 497
sahilmgandhi 18:6a4db94011d3 498 /* Rx process is completed, restore hcec->RxState to Ready */
sahilmgandhi 18:6a4db94011d3 499 hcec->RxState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 500 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 501 hcec->Init.RxBuffer -= hcec->RxXferSize;
sahilmgandhi 18:6a4db94011d3 502 HAL_CEC_RxCpltCallback(hcec, hcec->RxXferSize);
sahilmgandhi 18:6a4db94011d3 503 hcec->RxXferSize = 0U;
sahilmgandhi 18:6a4db94011d3 504 }
sahilmgandhi 18:6a4db94011d3 505
sahilmgandhi 18:6a4db94011d3 506 /* ----------------------------Tx Management----------------------------------*/
sahilmgandhi 18:6a4db94011d3 507 /* CEC TX byte request interrupt ------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 508 if((reg & CEC_FLAG_TXBR) != RESET)
sahilmgandhi 18:6a4db94011d3 509 {
sahilmgandhi 18:6a4db94011d3 510 if (hcec->TxXferCount == 0U)
sahilmgandhi 18:6a4db94011d3 511 {
sahilmgandhi 18:6a4db94011d3 512 /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */
sahilmgandhi 18:6a4db94011d3 513 __HAL_CEC_LAST_BYTE_TX_SET(hcec);
sahilmgandhi 18:6a4db94011d3 514 hcec->Instance->TXDR = *hcec->pTxBuffPtr++;
sahilmgandhi 18:6a4db94011d3 515 }
sahilmgandhi 18:6a4db94011d3 516 else
sahilmgandhi 18:6a4db94011d3 517 {
sahilmgandhi 18:6a4db94011d3 518 hcec->Instance->TXDR = *hcec->pTxBuffPtr++;
sahilmgandhi 18:6a4db94011d3 519 hcec->TxXferCount--;
sahilmgandhi 18:6a4db94011d3 520 }
sahilmgandhi 18:6a4db94011d3 521 /* clear Tx-Byte request flag */
sahilmgandhi 18:6a4db94011d3 522 __HAL_CEC_CLEAR_FLAG(hcec,CEC_FLAG_TXBR);
sahilmgandhi 18:6a4db94011d3 523 }
sahilmgandhi 18:6a4db94011d3 524
sahilmgandhi 18:6a4db94011d3 525 /* CEC TX end interrupt ------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 526 if((reg & CEC_FLAG_TXEND) != RESET)
sahilmgandhi 18:6a4db94011d3 527 {
sahilmgandhi 18:6a4db94011d3 528 __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND);
sahilmgandhi 18:6a4db94011d3 529
sahilmgandhi 18:6a4db94011d3 530 /* Tx process is ended, restore hcec->gState to Ready */
sahilmgandhi 18:6a4db94011d3 531 hcec->gState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 532 /* Call the Process Unlocked before calling the Tx call back API to give the possibility to
sahilmgandhi 18:6a4db94011d3 533 start again the Transmission under the Tx call back API */
sahilmgandhi 18:6a4db94011d3 534 __HAL_UNLOCK(hcec);
sahilmgandhi 18:6a4db94011d3 535 hcec->ErrorCode = HAL_CEC_ERROR_NONE;
sahilmgandhi 18:6a4db94011d3 536 HAL_CEC_TxCpltCallback(hcec);
sahilmgandhi 18:6a4db94011d3 537 }
sahilmgandhi 18:6a4db94011d3 538
sahilmgandhi 18:6a4db94011d3 539 /* ----------------------------Rx/Tx Error Management----------------------------------*/
sahilmgandhi 18:6a4db94011d3 540 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)
sahilmgandhi 18:6a4db94011d3 541 {
sahilmgandhi 18:6a4db94011d3 542 hcec->ErrorCode = reg;
sahilmgandhi 18:6a4db94011d3 543 __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);
sahilmgandhi 18:6a4db94011d3 544
sahilmgandhi 18:6a4db94011d3 545
sahilmgandhi 18:6a4db94011d3 546 if((reg & (CEC_ISR_RXOVR|CEC_ISR_BRE|CEC_ISR_SBPE|CEC_ISR_LBPE|CEC_ISR_RXACKE)) != RESET)
sahilmgandhi 18:6a4db94011d3 547 {
sahilmgandhi 18:6a4db94011d3 548 hcec->Init.RxBuffer-=hcec->RxXferSize;
sahilmgandhi 18:6a4db94011d3 549 hcec->RxXferSize = 0U;
sahilmgandhi 18:6a4db94011d3 550 hcec->RxState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 551 }
sahilmgandhi 18:6a4db94011d3 552 else if (((reg & (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE)) != RESET) && ((reg & CEC_ISR_ARBLST) == RESET))
sahilmgandhi 18:6a4db94011d3 553 {
sahilmgandhi 18:6a4db94011d3 554 /* Set the CEC state ready to be able to start again the process */
sahilmgandhi 18:6a4db94011d3 555 hcec->gState = HAL_CEC_STATE_READY;
sahilmgandhi 18:6a4db94011d3 556 }
sahilmgandhi 18:6a4db94011d3 557
sahilmgandhi 18:6a4db94011d3 558 /* Error Call Back */
sahilmgandhi 18:6a4db94011d3 559 HAL_CEC_ErrorCallback(hcec);
sahilmgandhi 18:6a4db94011d3 560 }
sahilmgandhi 18:6a4db94011d3 561
sahilmgandhi 18:6a4db94011d3 562 }
sahilmgandhi 18:6a4db94011d3 563
sahilmgandhi 18:6a4db94011d3 564 /**
sahilmgandhi 18:6a4db94011d3 565 * @brief Tx Transfer completed callback
sahilmgandhi 18:6a4db94011d3 566 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 567 * @retval None
sahilmgandhi 18:6a4db94011d3 568 */
sahilmgandhi 18:6a4db94011d3 569 __weak void HAL_CEC_TxCpltCallback(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 570 {
sahilmgandhi 18:6a4db94011d3 571 /* Prevent unused argument(s) compilation warning */
sahilmgandhi 18:6a4db94011d3 572 UNUSED(hcec);
sahilmgandhi 18:6a4db94011d3 573 /* NOTE : This function should not be modified, when the callback is needed,
sahilmgandhi 18:6a4db94011d3 574 the HAL_CEC_TxCpltCallback can be implemented in the user file
sahilmgandhi 18:6a4db94011d3 575 */
sahilmgandhi 18:6a4db94011d3 576 }
sahilmgandhi 18:6a4db94011d3 577
sahilmgandhi 18:6a4db94011d3 578 /**
sahilmgandhi 18:6a4db94011d3 579 * @brief Rx Transfer completed callback
sahilmgandhi 18:6a4db94011d3 580 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 581 * @param RxFrameSize: Size of frame
sahilmgandhi 18:6a4db94011d3 582 * @retval None
sahilmgandhi 18:6a4db94011d3 583 */
sahilmgandhi 18:6a4db94011d3 584 __weak void HAL_CEC_RxCpltCallback(CEC_HandleTypeDef *hcec, uint32_t RxFrameSize)
sahilmgandhi 18:6a4db94011d3 585 {
sahilmgandhi 18:6a4db94011d3 586 /* Prevent unused argument(s) compilation warning */
sahilmgandhi 18:6a4db94011d3 587 UNUSED(hcec);
sahilmgandhi 18:6a4db94011d3 588 UNUSED(RxFrameSize);
sahilmgandhi 18:6a4db94011d3 589 /* NOTE : This function should not be modified, when the callback is needed,
sahilmgandhi 18:6a4db94011d3 590 the HAL_CEC_RxCpltCallback can be implemented in the user file
sahilmgandhi 18:6a4db94011d3 591 */
sahilmgandhi 18:6a4db94011d3 592 }
sahilmgandhi 18:6a4db94011d3 593
sahilmgandhi 18:6a4db94011d3 594 /**
sahilmgandhi 18:6a4db94011d3 595 * @brief CEC error callbacks
sahilmgandhi 18:6a4db94011d3 596 * @param hcec: CEC handle
sahilmgandhi 18:6a4db94011d3 597 * @retval None
sahilmgandhi 18:6a4db94011d3 598 */
sahilmgandhi 18:6a4db94011d3 599 __weak void HAL_CEC_ErrorCallback(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 600 {
sahilmgandhi 18:6a4db94011d3 601 /* Prevent unused argument(s) compilation warning */
sahilmgandhi 18:6a4db94011d3 602 UNUSED(hcec);
sahilmgandhi 18:6a4db94011d3 603 /* NOTE : This function should not be modified, when the callback is needed,
sahilmgandhi 18:6a4db94011d3 604 the HAL_CEC_ErrorCallback can be implemented in the user file
sahilmgandhi 18:6a4db94011d3 605 */
sahilmgandhi 18:6a4db94011d3 606 }
sahilmgandhi 18:6a4db94011d3 607 /**
sahilmgandhi 18:6a4db94011d3 608 * @}
sahilmgandhi 18:6a4db94011d3 609 */
sahilmgandhi 18:6a4db94011d3 610
sahilmgandhi 18:6a4db94011d3 611 /** @defgroup CEC_Exported_Functions_Group3 Peripheral Control function
sahilmgandhi 18:6a4db94011d3 612 * @brief CEC control functions
sahilmgandhi 18:6a4db94011d3 613 *
sahilmgandhi 18:6a4db94011d3 614 @verbatim
sahilmgandhi 18:6a4db94011d3 615 ===============================================================================
sahilmgandhi 18:6a4db94011d3 616 ##### Peripheral Control function #####
sahilmgandhi 18:6a4db94011d3 617 ===============================================================================
sahilmgandhi 18:6a4db94011d3 618 [..]
sahilmgandhi 18:6a4db94011d3 619 This subsection provides a set of functions allowing to control the CEC.
sahilmgandhi 18:6a4db94011d3 620 (+) HAL_CEC_GetState() API can be helpful to check in run-time the state of the CEC peripheral.
sahilmgandhi 18:6a4db94011d3 621 (+) HAL_CEC_GetError() API can be helpful to check in run-time the error of the CEC peripheral.
sahilmgandhi 18:6a4db94011d3 622 @endverbatim
sahilmgandhi 18:6a4db94011d3 623 * @{
sahilmgandhi 18:6a4db94011d3 624 */
sahilmgandhi 18:6a4db94011d3 625 /**
sahilmgandhi 18:6a4db94011d3 626 * @brief return the CEC state
sahilmgandhi 18:6a4db94011d3 627 * @param hcec: pointer to a CEC_HandleTypeDef structure that contains
sahilmgandhi 18:6a4db94011d3 628 * the configuration information for the specified CEC module.
sahilmgandhi 18:6a4db94011d3 629 * @retval HAL state
sahilmgandhi 18:6a4db94011d3 630 */
sahilmgandhi 18:6a4db94011d3 631 HAL_CEC_StateTypeDef HAL_CEC_GetState(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 632 {
sahilmgandhi 18:6a4db94011d3 633 uint32_t temp1 = 0x00U, temp2 = 0x00U;
sahilmgandhi 18:6a4db94011d3 634 temp1 = hcec->gState;
sahilmgandhi 18:6a4db94011d3 635 temp2 = hcec->RxState;
sahilmgandhi 18:6a4db94011d3 636
sahilmgandhi 18:6a4db94011d3 637 return (HAL_CEC_StateTypeDef)(temp1 | temp2);
sahilmgandhi 18:6a4db94011d3 638 }
sahilmgandhi 18:6a4db94011d3 639
sahilmgandhi 18:6a4db94011d3 640 /**
sahilmgandhi 18:6a4db94011d3 641 * @brief Return the CEC error code
sahilmgandhi 18:6a4db94011d3 642 * @param hcec : pointer to a CEC_HandleTypeDef structure that contains
sahilmgandhi 18:6a4db94011d3 643 * the configuration information for the specified CEC.
sahilmgandhi 18:6a4db94011d3 644 * @retval CEC Error Code
sahilmgandhi 18:6a4db94011d3 645 */
sahilmgandhi 18:6a4db94011d3 646 uint32_t HAL_CEC_GetError(CEC_HandleTypeDef *hcec)
sahilmgandhi 18:6a4db94011d3 647 {
sahilmgandhi 18:6a4db94011d3 648 return hcec->ErrorCode;
sahilmgandhi 18:6a4db94011d3 649 }
sahilmgandhi 18:6a4db94011d3 650
sahilmgandhi 18:6a4db94011d3 651 /**
sahilmgandhi 18:6a4db94011d3 652 * @}
sahilmgandhi 18:6a4db94011d3 653 */
sahilmgandhi 18:6a4db94011d3 654
sahilmgandhi 18:6a4db94011d3 655 /**
sahilmgandhi 18:6a4db94011d3 656 * @}
sahilmgandhi 18:6a4db94011d3 657 */
sahilmgandhi 18:6a4db94011d3 658
sahilmgandhi 18:6a4db94011d3 659 #endif /* STM32F446xx */
sahilmgandhi 18:6a4db94011d3 660
sahilmgandhi 18:6a4db94011d3 661 #endif /* HAL_CEC_MODULE_ENABLED */
sahilmgandhi 18:6a4db94011d3 662 /**
sahilmgandhi 18:6a4db94011d3 663 * @}
sahilmgandhi 18:6a4db94011d3 664 */
sahilmgandhi 18:6a4db94011d3 665
sahilmgandhi 18:6a4db94011d3 666 /**
sahilmgandhi 18:6a4db94011d3 667 * @}
sahilmgandhi 18:6a4db94011d3 668 */
sahilmgandhi 18:6a4db94011d3 669
sahilmgandhi 18:6a4db94011d3 670 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/