Sigve Sebastian Farstad
mbed w/ spi bug fig
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mbed official
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F072RB/stm32f0xx_hal_cec.c@205:c41fc65bcfb4, 2014-05-22 (annotated)
- Committer:
- mbed_official
- Date:
- Thu May 22 20:00:09 2014 +0100
- Revision:
- 205:c41fc65bcfb4
- Child:
- 218:44081b78fdc2
Synchronized with git revision ea4b6f76efab17a3f7d7777b0cc1ef05fec6d1cb
Full URL: https://github.com/mbedmicro/mbed/commit/ea4b6f76efab17a3f7d7777b0cc1ef05fec6d1cb/
[NUCLEO_F072RB] cmsis files
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 205:c41fc65bcfb4 | 1 | /** |
| mbed_official | 205:c41fc65bcfb4 | 2 | ****************************************************************************** |
| mbed_official | 205:c41fc65bcfb4 | 3 | * @file stm32f0xx_hal_cec.c |
| mbed_official | 205:c41fc65bcfb4 | 4 | * @author MCD Application Team |
| mbed_official | 205:c41fc65bcfb4 | 5 | * @version V1.0.0 |
| mbed_official | 205:c41fc65bcfb4 | 6 | * @date 20-May-2014 |
| mbed_official | 205:c41fc65bcfb4 | 7 | * @brief CEC HAL module driver. |
| mbed_official | 205:c41fc65bcfb4 | 8 | * |
| mbed_official | 205:c41fc65bcfb4 | 9 | * This file provides firmware functions to manage the following |
| mbed_official | 205:c41fc65bcfb4 | 10 | * functionalities of the High Definition Multimedia Interface |
| mbed_official | 205:c41fc65bcfb4 | 11 | * Consumer Electronics Control Peripheral (CEC). |
| mbed_official | 205:c41fc65bcfb4 | 12 | * + Initialization and de-initialization function |
| mbed_official | 205:c41fc65bcfb4 | 13 | * + IO operation function |
| mbed_official | 205:c41fc65bcfb4 | 14 | * + Peripheral Control function |
| mbed_official | 205:c41fc65bcfb4 | 15 | * |
| mbed_official | 205:c41fc65bcfb4 | 16 | * |
| mbed_official | 205:c41fc65bcfb4 | 17 | @verbatim |
| mbed_official | 205:c41fc65bcfb4 | 18 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 19 | ##### How to use this driver ##### |
| mbed_official | 205:c41fc65bcfb4 | 20 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 21 | [..] |
| mbed_official | 205:c41fc65bcfb4 | 22 | The CEC HAL driver can be used as follows: |
| mbed_official | 205:c41fc65bcfb4 | 23 | |
| mbed_official | 205:c41fc65bcfb4 | 24 | (#) Declare a CEC_HandleTypeDef handle structure. |
| mbed_official | 205:c41fc65bcfb4 | 25 | (#) Initialize the CEC low level resources by implementing the HAL_CEC_MspInit ()API: |
| mbed_official | 205:c41fc65bcfb4 | 26 | (##) Enable the CEC interface clock. |
| mbed_official | 205:c41fc65bcfb4 | 27 | (##) CEC pins configuration: |
| mbed_official | 205:c41fc65bcfb4 | 28 | (+) Enable the clock for the CEC GPIOs. |
| mbed_official | 205:c41fc65bcfb4 | 29 | (+) Configure these CEC pins as alternate function pull-up. |
| mbed_official | 205:c41fc65bcfb4 | 30 | (##) NVIC configuration if you need to use interrupt process (HAL_CEC_Transmit_IT() |
| mbed_official | 205:c41fc65bcfb4 | 31 | and HAL_CEC_Receive_IT() APIs): |
| mbed_official | 205:c41fc65bcfb4 | 32 | (+) Configure the CEC interrupt priority. |
| mbed_official | 205:c41fc65bcfb4 | 33 | (+) Enable the NVIC CEC IRQ handle. |
| mbed_official | 205:c41fc65bcfb4 | 34 | (@) The specific CEC interrupts (Transmission complete interrupt, |
| mbed_official | 205:c41fc65bcfb4 | 35 | RXNE interrupt and Error Interrupts) will be managed using the macros |
| mbed_official | 205:c41fc65bcfb4 | 36 | __HAL_CEC_ENABLE_IT() and __HAL_CEC_DISABLE_IT() inside the transmit |
| mbed_official | 205:c41fc65bcfb4 | 37 | and receive process. |
| mbed_official | 205:c41fc65bcfb4 | 38 | |
| mbed_official | 205:c41fc65bcfb4 | 39 | (#) Program the Signal Free Time (SFT) and SFT option, Tolerance, reception stop in |
| mbed_official | 205:c41fc65bcfb4 | 40 | in case of Bit Rising Error, Error-Bit generation conditions, device logical |
| mbed_official | 205:c41fc65bcfb4 | 41 | address and Listen mode in the hcec Init structure. |
| mbed_official | 205:c41fc65bcfb4 | 42 | |
| mbed_official | 205:c41fc65bcfb4 | 43 | (#) Initialize the CEC registers by calling the HAL_CEC_Init() API. |
| mbed_official | 205:c41fc65bcfb4 | 44 | |
| mbed_official | 205:c41fc65bcfb4 | 45 | (@) This API (HAL_CEC_Init()) configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) |
| mbed_official | 205:c41fc65bcfb4 | 46 | by calling the customed HAL_CEC_MspInit() API. |
| mbed_official | 205:c41fc65bcfb4 | 47 | |
| mbed_official | 205:c41fc65bcfb4 | 48 | @endverbatim |
| mbed_official | 205:c41fc65bcfb4 | 49 | ****************************************************************************** |
| mbed_official | 205:c41fc65bcfb4 | 50 | * @attention |
| mbed_official | 205:c41fc65bcfb4 | 51 | * |
| mbed_official | 205:c41fc65bcfb4 | 52 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
| mbed_official | 205:c41fc65bcfb4 | 53 | * |
| mbed_official | 205:c41fc65bcfb4 | 54 | * Redistribution and use in source and binary forms, with or without modification, |
| mbed_official | 205:c41fc65bcfb4 | 55 | * are permitted provided that the following conditions are met: |
| mbed_official | 205:c41fc65bcfb4 | 56 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 205:c41fc65bcfb4 | 57 | * this list of conditions and the following disclaimer. |
| mbed_official | 205:c41fc65bcfb4 | 58 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 205:c41fc65bcfb4 | 59 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 205:c41fc65bcfb4 | 60 | * and/or other materials provided with the distribution. |
| mbed_official | 205:c41fc65bcfb4 | 61 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 205:c41fc65bcfb4 | 62 | * may be used to endorse or promote products derived from this software |
| mbed_official | 205:c41fc65bcfb4 | 63 | * without specific prior written permission. |
| mbed_official | 205:c41fc65bcfb4 | 64 | * |
| mbed_official | 205:c41fc65bcfb4 | 65 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 205:c41fc65bcfb4 | 66 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 205:c41fc65bcfb4 | 67 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 205:c41fc65bcfb4 | 68 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 205:c41fc65bcfb4 | 69 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 205:c41fc65bcfb4 | 70 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 205:c41fc65bcfb4 | 71 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 205:c41fc65bcfb4 | 72 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 205:c41fc65bcfb4 | 73 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 205:c41fc65bcfb4 | 74 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 205:c41fc65bcfb4 | 75 | * |
| mbed_official | 205:c41fc65bcfb4 | 76 | ****************************************************************************** |
| mbed_official | 205:c41fc65bcfb4 | 77 | */ |
| mbed_official | 205:c41fc65bcfb4 | 78 | |
| mbed_official | 205:c41fc65bcfb4 | 79 | /* Includes ------------------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 80 | #include "stm32f0xx_hal.h" |
| mbed_official | 205:c41fc65bcfb4 | 81 | |
| mbed_official | 205:c41fc65bcfb4 | 82 | /** @addtogroup STM32F0xx_HAL_Driver |
| mbed_official | 205:c41fc65bcfb4 | 83 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 84 | */ |
| mbed_official | 205:c41fc65bcfb4 | 85 | |
| mbed_official | 205:c41fc65bcfb4 | 86 | /** @defgroup CEC |
| mbed_official | 205:c41fc65bcfb4 | 87 | * @brief HAL CEC module driver |
| mbed_official | 205:c41fc65bcfb4 | 88 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 89 | */ |
| mbed_official | 205:c41fc65bcfb4 | 90 | #ifdef HAL_CEC_MODULE_ENABLED |
| mbed_official | 205:c41fc65bcfb4 | 91 | |
| mbed_official | 205:c41fc65bcfb4 | 92 | #if defined(STM32F042x6) || defined(STM32F048xx) ||\ |
| mbed_official | 205:c41fc65bcfb4 | 93 | defined(STM32F051x8) || defined(STM32F058xx) ||\ |
| mbed_official | 205:c41fc65bcfb4 | 94 | defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) |
| mbed_official | 205:c41fc65bcfb4 | 95 | |
| mbed_official | 205:c41fc65bcfb4 | 96 | /* Private typedef -----------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 97 | /* Private define ------------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 98 | #define CEC_CFGR_FIELDS (CEC_CFGR_SFT | CEC_CFGR_RXTOL | CEC_CFGR_BRESTP \ |
| mbed_official | 205:c41fc65bcfb4 | 99 | | CEC_CFGR_BREGEN | CEC_CFGR_LBPEGEN | CEC_CFGR_SFTOPT \ |
| mbed_official | 205:c41fc65bcfb4 | 100 | | CEC_CFGR_BRDNOGEN | CEC_CFGR_OAR | CEC_CFGR_LSTN) |
| mbed_official | 205:c41fc65bcfb4 | 101 | /* Private macro -------------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 102 | /* Private variables ---------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 103 | /* Private function prototypes -----------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 104 | static HAL_StatusTypeDef CEC_Transmit_IT(CEC_HandleTypeDef *hcec); |
| mbed_official | 205:c41fc65bcfb4 | 105 | static HAL_StatusTypeDef CEC_Receive_IT(CEC_HandleTypeDef *hcec); |
| mbed_official | 205:c41fc65bcfb4 | 106 | /* Private functions ---------------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 107 | |
| mbed_official | 205:c41fc65bcfb4 | 108 | /** @defgroup CEC_Private_Functions |
| mbed_official | 205:c41fc65bcfb4 | 109 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 110 | */ |
| mbed_official | 205:c41fc65bcfb4 | 111 | |
| mbed_official | 205:c41fc65bcfb4 | 112 | /** @defgroup HAL_CEC_Group1 Initialization/de-initialization function |
| mbed_official | 205:c41fc65bcfb4 | 113 | * @brief Initialization and Configuration functions |
| mbed_official | 205:c41fc65bcfb4 | 114 | * |
| mbed_official | 205:c41fc65bcfb4 | 115 | @verbatim |
| mbed_official | 205:c41fc65bcfb4 | 116 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 117 | ##### Initialization and Configuration functions ##### |
| mbed_official | 205:c41fc65bcfb4 | 118 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 119 | [..] |
| mbed_official | 205:c41fc65bcfb4 | 120 | This subsection provides a set of functions allowing to initialize the CEC |
| mbed_official | 205:c41fc65bcfb4 | 121 | (+) The following parameters need to be configured: |
| mbed_official | 205:c41fc65bcfb4 | 122 | (++) SignalFreeTime |
| mbed_official | 205:c41fc65bcfb4 | 123 | (++) Tolerance |
| mbed_official | 205:c41fc65bcfb4 | 124 | (++) BRERxStop (RX stopped or not upon Bit Rising Error) |
| mbed_official | 205:c41fc65bcfb4 | 125 | (++) BREErrorBitGen (Error-Bit generation in case of Bit Rising Error) |
| mbed_official | 205:c41fc65bcfb4 | 126 | (++) LBPEErrorBitGen (Error-Bit generation in case of Long Bit Period Error) |
| mbed_official | 205:c41fc65bcfb4 | 127 | (++) BroadcastMsgNoErrorBitGen (Error-bit generation in case of broadcast message error) |
| mbed_official | 205:c41fc65bcfb4 | 128 | (++) SignalFreeTimeOption (SFT Timer start definition) |
| mbed_official | 205:c41fc65bcfb4 | 129 | (++) OwnAddress (CEC device address) |
| mbed_official | 205:c41fc65bcfb4 | 130 | (++) ListenMode |
| mbed_official | 205:c41fc65bcfb4 | 131 | |
| mbed_official | 205:c41fc65bcfb4 | 132 | @endverbatim |
| mbed_official | 205:c41fc65bcfb4 | 133 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 134 | */ |
| mbed_official | 205:c41fc65bcfb4 | 135 | |
| mbed_official | 205:c41fc65bcfb4 | 136 | /** |
| mbed_official | 205:c41fc65bcfb4 | 137 | * @brief Initializes the CEC mode according to the specified |
| mbed_official | 205:c41fc65bcfb4 | 138 | * parameters in the CEC_InitTypeDef and creates the associated handle . |
| mbed_official | 205:c41fc65bcfb4 | 139 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 140 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 141 | */ |
| mbed_official | 205:c41fc65bcfb4 | 142 | HAL_StatusTypeDef HAL_CEC_Init(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 143 | { |
| mbed_official | 205:c41fc65bcfb4 | 144 | uint32_t tmpreg = 0x0; |
| mbed_official | 205:c41fc65bcfb4 | 145 | |
| mbed_official | 205:c41fc65bcfb4 | 146 | /* Check the CEC handle allocation */ |
| mbed_official | 205:c41fc65bcfb4 | 147 | if(hcec == NULL) |
| mbed_official | 205:c41fc65bcfb4 | 148 | { |
| mbed_official | 205:c41fc65bcfb4 | 149 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 150 | } |
| mbed_official | 205:c41fc65bcfb4 | 151 | |
| mbed_official | 205:c41fc65bcfb4 | 152 | /* Check the parameters */ |
| mbed_official | 205:c41fc65bcfb4 | 153 | assert_param(IS_CEC_SIGNALFREETIME(hcec->Init.SignalFreeTime)); |
| mbed_official | 205:c41fc65bcfb4 | 154 | assert_param(IS_CEC_TOLERANCE(hcec->Init.Tolerance)); |
| mbed_official | 205:c41fc65bcfb4 | 155 | assert_param(IS_CEC_BRERXSTOP(hcec->Init.BRERxStop)); |
| mbed_official | 205:c41fc65bcfb4 | 156 | assert_param(IS_CEC_BREERRORBITGEN(hcec->Init.BREErrorBitGen)); |
| mbed_official | 205:c41fc65bcfb4 | 157 | assert_param(IS_CEC_LBPEERRORBITGEN(hcec->Init.LBPEErrorBitGen)); |
| mbed_official | 205:c41fc65bcfb4 | 158 | assert_param(IS_CEC_BROADCASTERROR_NO_ERRORBIT_GENERATION(hcec->Init.BroadcastMsgNoErrorBitGen)); |
| mbed_official | 205:c41fc65bcfb4 | 159 | assert_param(IS_CEC_SFTOP(hcec->Init.SignalFreeTimeOption)); |
| mbed_official | 205:c41fc65bcfb4 | 160 | assert_param(IS_CEC_OAR_ADDRESS(hcec->Init.OwnAddress)); |
| mbed_official | 205:c41fc65bcfb4 | 161 | assert_param(IS_CEC_LISTENING_MODE(hcec->Init.ListenMode)); |
| mbed_official | 205:c41fc65bcfb4 | 162 | assert_param(IS_CEC_ADDRESS(hcec->Init.InitiatorAddress)); |
| mbed_official | 205:c41fc65bcfb4 | 163 | |
| mbed_official | 205:c41fc65bcfb4 | 164 | |
| mbed_official | 205:c41fc65bcfb4 | 165 | if(hcec->State == HAL_CEC_STATE_RESET) |
| mbed_official | 205:c41fc65bcfb4 | 166 | { |
| mbed_official | 205:c41fc65bcfb4 | 167 | /* Init the low level hardware : GPIO, CLOCK */ |
| mbed_official | 205:c41fc65bcfb4 | 168 | HAL_CEC_MspInit(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 169 | } |
| mbed_official | 205:c41fc65bcfb4 | 170 | |
| mbed_official | 205:c41fc65bcfb4 | 171 | hcec->State = HAL_CEC_STATE_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 172 | |
| mbed_official | 205:c41fc65bcfb4 | 173 | /* Disable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 174 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 175 | |
| mbed_official | 205:c41fc65bcfb4 | 176 | tmpreg = hcec->Init.SignalFreeTime; |
| mbed_official | 205:c41fc65bcfb4 | 177 | tmpreg |= hcec->Init.Tolerance; |
| mbed_official | 205:c41fc65bcfb4 | 178 | tmpreg |= hcec->Init.BRERxStop; |
| mbed_official | 205:c41fc65bcfb4 | 179 | tmpreg |= hcec->Init.BREErrorBitGen; |
| mbed_official | 205:c41fc65bcfb4 | 180 | tmpreg |= hcec->Init.LBPEErrorBitGen; |
| mbed_official | 205:c41fc65bcfb4 | 181 | tmpreg |= hcec->Init.BroadcastMsgNoErrorBitGen; |
| mbed_official | 205:c41fc65bcfb4 | 182 | tmpreg |= hcec->Init.SignalFreeTimeOption; |
| mbed_official | 205:c41fc65bcfb4 | 183 | tmpreg |= (hcec->Init.OwnAddress << CEC_CFGR_OAR_LSB_POS); |
| mbed_official | 205:c41fc65bcfb4 | 184 | tmpreg |= hcec->Init.ListenMode; |
| mbed_official | 205:c41fc65bcfb4 | 185 | |
| mbed_official | 205:c41fc65bcfb4 | 186 | /* Write to CEC Control Register */ |
| mbed_official | 205:c41fc65bcfb4 | 187 | MODIFY_REG(hcec->Instance->CFGR, CEC_CFGR_FIELDS, tmpreg); |
| mbed_official | 205:c41fc65bcfb4 | 188 | |
| mbed_official | 205:c41fc65bcfb4 | 189 | /* Enable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 190 | __HAL_CEC_ENABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 191 | |
| mbed_official | 205:c41fc65bcfb4 | 192 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 193 | |
| mbed_official | 205:c41fc65bcfb4 | 194 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 195 | } |
| mbed_official | 205:c41fc65bcfb4 | 196 | |
| mbed_official | 205:c41fc65bcfb4 | 197 | |
| mbed_official | 205:c41fc65bcfb4 | 198 | |
| mbed_official | 205:c41fc65bcfb4 | 199 | /** |
| mbed_official | 205:c41fc65bcfb4 | 200 | * @brief DeInitializes the CEC peripheral |
| mbed_official | 205:c41fc65bcfb4 | 201 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 202 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 203 | */ |
| mbed_official | 205:c41fc65bcfb4 | 204 | HAL_StatusTypeDef HAL_CEC_DeInit(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 205 | { |
| mbed_official | 205:c41fc65bcfb4 | 206 | /* Check the CEC handle allocation */ |
| mbed_official | 205:c41fc65bcfb4 | 207 | if(hcec == NULL) |
| mbed_official | 205:c41fc65bcfb4 | 208 | { |
| mbed_official | 205:c41fc65bcfb4 | 209 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 210 | } |
| mbed_official | 205:c41fc65bcfb4 | 211 | |
| mbed_official | 205:c41fc65bcfb4 | 212 | /* Check the parameters */ |
| mbed_official | 205:c41fc65bcfb4 | 213 | assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance)); |
| mbed_official | 205:c41fc65bcfb4 | 214 | |
| mbed_official | 205:c41fc65bcfb4 | 215 | hcec->State = HAL_CEC_STATE_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 216 | |
| mbed_official | 205:c41fc65bcfb4 | 217 | /* DeInit the low level hardware */ |
| mbed_official | 205:c41fc65bcfb4 | 218 | HAL_CEC_MspDeInit(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 219 | /* Disable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 220 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 221 | |
| mbed_official | 205:c41fc65bcfb4 | 222 | hcec->ErrorCode = HAL_CEC_ERROR_NONE; |
| mbed_official | 205:c41fc65bcfb4 | 223 | hcec->State = HAL_CEC_STATE_RESET; |
| mbed_official | 205:c41fc65bcfb4 | 224 | |
| mbed_official | 205:c41fc65bcfb4 | 225 | /* Process Unlock */ |
| mbed_official | 205:c41fc65bcfb4 | 226 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 227 | |
| mbed_official | 205:c41fc65bcfb4 | 228 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 229 | } |
| mbed_official | 205:c41fc65bcfb4 | 230 | |
| mbed_official | 205:c41fc65bcfb4 | 231 | /** |
| mbed_official | 205:c41fc65bcfb4 | 232 | * @brief CEC MSP Init |
| mbed_official | 205:c41fc65bcfb4 | 233 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 234 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 235 | */ |
| mbed_official | 205:c41fc65bcfb4 | 236 | __weak void HAL_CEC_MspInit(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 237 | { |
| mbed_official | 205:c41fc65bcfb4 | 238 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 205:c41fc65bcfb4 | 239 | the HAL_CEC_MspInit can be implemented in the user file |
| mbed_official | 205:c41fc65bcfb4 | 240 | */ |
| mbed_official | 205:c41fc65bcfb4 | 241 | } |
| mbed_official | 205:c41fc65bcfb4 | 242 | |
| mbed_official | 205:c41fc65bcfb4 | 243 | /** |
| mbed_official | 205:c41fc65bcfb4 | 244 | * @brief CEC MSP DeInit |
| mbed_official | 205:c41fc65bcfb4 | 245 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 246 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 247 | */ |
| mbed_official | 205:c41fc65bcfb4 | 248 | __weak void HAL_CEC_MspDeInit(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 249 | { |
| mbed_official | 205:c41fc65bcfb4 | 250 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 205:c41fc65bcfb4 | 251 | the HAL_CEC_MspDeInit can be implemented in the user file |
| mbed_official | 205:c41fc65bcfb4 | 252 | */ |
| mbed_official | 205:c41fc65bcfb4 | 253 | } |
| mbed_official | 205:c41fc65bcfb4 | 254 | |
| mbed_official | 205:c41fc65bcfb4 | 255 | /** |
| mbed_official | 205:c41fc65bcfb4 | 256 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 257 | */ |
| mbed_official | 205:c41fc65bcfb4 | 258 | |
| mbed_official | 205:c41fc65bcfb4 | 259 | /** @defgroup HAL_CEC_Group2 IO operation function |
| mbed_official | 205:c41fc65bcfb4 | 260 | * @brief CEC Transmit/Receive functions |
| mbed_official | 205:c41fc65bcfb4 | 261 | * |
| mbed_official | 205:c41fc65bcfb4 | 262 | @verbatim |
| mbed_official | 205:c41fc65bcfb4 | 263 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 264 | ##### I/O operation function ##### |
| mbed_official | 205:c41fc65bcfb4 | 265 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 266 | This subsection provides a set of functions allowing to manage the CEC data transfers. |
| mbed_official | 205:c41fc65bcfb4 | 267 | |
| mbed_official | 205:c41fc65bcfb4 | 268 | (#) The CEC handle must contain the initiator (TX side) and the destination (RX side) |
| mbed_official | 205:c41fc65bcfb4 | 269 | logical addresses (4-bit long addresses, 0xF for broadcast messages destination) |
| mbed_official | 205:c41fc65bcfb4 | 270 | |
| mbed_official | 205:c41fc65bcfb4 | 271 | (#) There are two mode of transfer: |
| mbed_official | 205:c41fc65bcfb4 | 272 | (+) Blocking mode: The communication is performed in polling mode. |
| mbed_official | 205:c41fc65bcfb4 | 273 | The HAL status of all data processing is returned by the same function |
| mbed_official | 205:c41fc65bcfb4 | 274 | after finishing transfer. |
| mbed_official | 205:c41fc65bcfb4 | 275 | (+) No-Blocking mode: The communication is performed using Interrupts. |
| mbed_official | 205:c41fc65bcfb4 | 276 | These API's return the HAL status. |
| mbed_official | 205:c41fc65bcfb4 | 277 | The end of the data processing will be indicated through the |
| mbed_official | 205:c41fc65bcfb4 | 278 | dedicated CEC IRQ when using Interrupt mode. |
| mbed_official | 205:c41fc65bcfb4 | 279 | The HAL_CEC_TxCpltCallback(), HAL_CEC_RxCpltCallback() user callbacks |
| mbed_official | 205:c41fc65bcfb4 | 280 | will be executed respectivelly at the end of the transmit or Receive process |
| mbed_official | 205:c41fc65bcfb4 | 281 | The HAL_CEC_ErrorCallback()user callback will be executed when a communication |
| mbed_official | 205:c41fc65bcfb4 | 282 | error is detected |
| mbed_official | 205:c41fc65bcfb4 | 283 | |
| mbed_official | 205:c41fc65bcfb4 | 284 | (#) Blocking mode API's are : |
| mbed_official | 205:c41fc65bcfb4 | 285 | (+) HAL_CEC_Transmit() |
| mbed_official | 205:c41fc65bcfb4 | 286 | (+) HAL_CEC_Receive() |
| mbed_official | 205:c41fc65bcfb4 | 287 | |
| mbed_official | 205:c41fc65bcfb4 | 288 | (#) Non-Blocking mode API's with Interrupt are : |
| mbed_official | 205:c41fc65bcfb4 | 289 | (+) HAL_CEC_Transmit_IT() |
| mbed_official | 205:c41fc65bcfb4 | 290 | (+) HAL_CEC_Receive_IT() |
| mbed_official | 205:c41fc65bcfb4 | 291 | (+) HAL_CEC_IRQHandler() |
| mbed_official | 205:c41fc65bcfb4 | 292 | |
| mbed_official | 205:c41fc65bcfb4 | 293 | (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode: |
| mbed_official | 205:c41fc65bcfb4 | 294 | (+) HAL_CEC_TxCpltCallback() |
| mbed_official | 205:c41fc65bcfb4 | 295 | (+) HAL_CEC_RxCpltCallback() |
| mbed_official | 205:c41fc65bcfb4 | 296 | (+) HAL_CEC_ErrorCallback() |
| mbed_official | 205:c41fc65bcfb4 | 297 | |
| mbed_official | 205:c41fc65bcfb4 | 298 | @endverbatim |
| mbed_official | 205:c41fc65bcfb4 | 299 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 300 | */ |
| mbed_official | 205:c41fc65bcfb4 | 301 | |
| mbed_official | 205:c41fc65bcfb4 | 302 | /** |
| mbed_official | 205:c41fc65bcfb4 | 303 | * @brief Send data in blocking mode |
| mbed_official | 205:c41fc65bcfb4 | 304 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 305 | * @param DestinationAddress: destination logical address |
| mbed_official | 205:c41fc65bcfb4 | 306 | * @param pData: pointer to input byte data buffer |
| mbed_official | 205:c41fc65bcfb4 | 307 | * @param Size: amount of data to be sent in bytes (without counting the header). |
| mbed_official | 205:c41fc65bcfb4 | 308 | * 0 means only the header is sent (ping operation). |
| mbed_official | 205:c41fc65bcfb4 | 309 | * Maximum TX size is 15 bytes (1 opcode and up to 14 operands). |
| mbed_official | 205:c41fc65bcfb4 | 310 | * @param Timeout: Timeout duration. |
| mbed_official | 205:c41fc65bcfb4 | 311 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 312 | */ |
| mbed_official | 205:c41fc65bcfb4 | 313 | HAL_StatusTypeDef HAL_CEC_Transmit(CEC_HandleTypeDef *hcec, uint8_t DestinationAddress, uint8_t *pData, uint32_t Size, uint32_t Timeout) |
| mbed_official | 205:c41fc65bcfb4 | 314 | { |
| mbed_official | 205:c41fc65bcfb4 | 315 | uint8_t temp = 0; |
| mbed_official | 205:c41fc65bcfb4 | 316 | uint32_t tempisr = 0; |
| mbed_official | 205:c41fc65bcfb4 | 317 | uint32_t tickstart = 0; |
| mbed_official | 205:c41fc65bcfb4 | 318 | |
| mbed_official | 205:c41fc65bcfb4 | 319 | if((hcec->State == HAL_CEC_STATE_READY) && (__HAL_CEC_GET_TRANSMISSION_START_FLAG(hcec) == RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 320 | { |
| mbed_official | 205:c41fc65bcfb4 | 321 | hcec->ErrorCode = HAL_CEC_ERROR_NONE; |
| mbed_official | 205:c41fc65bcfb4 | 322 | if((pData == NULL ) && (Size > 0)) |
| mbed_official | 205:c41fc65bcfb4 | 323 | { |
| mbed_official | 205:c41fc65bcfb4 | 324 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 325 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 326 | } |
| mbed_official | 205:c41fc65bcfb4 | 327 | |
| mbed_official | 205:c41fc65bcfb4 | 328 | assert_param(IS_CEC_ADDRESS(DestinationAddress)); |
| mbed_official | 205:c41fc65bcfb4 | 329 | assert_param(IS_CEC_MSGSIZE(Size)); |
| mbed_official | 205:c41fc65bcfb4 | 330 | |
| mbed_official | 205:c41fc65bcfb4 | 331 | /* Process Locked */ |
| mbed_official | 205:c41fc65bcfb4 | 332 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 333 | |
| mbed_official | 205:c41fc65bcfb4 | 334 | hcec->State = HAL_CEC_STATE_BUSY_TX; |
| mbed_official | 205:c41fc65bcfb4 | 335 | |
| mbed_official | 205:c41fc65bcfb4 | 336 | hcec->TxXferCount = Size; |
| mbed_official | 205:c41fc65bcfb4 | 337 | |
| mbed_official | 205:c41fc65bcfb4 | 338 | /* case no data to be sent, sender is only pinging the system */ |
| mbed_official | 205:c41fc65bcfb4 | 339 | if (Size == 0) |
| mbed_official | 205:c41fc65bcfb4 | 340 | { |
| mbed_official | 205:c41fc65bcfb4 | 341 | /* Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */ |
| mbed_official | 205:c41fc65bcfb4 | 342 | __HAL_CEC_LAST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 343 | } |
| mbed_official | 205:c41fc65bcfb4 | 344 | |
| mbed_official | 205:c41fc65bcfb4 | 345 | /* send header block */ |
| mbed_official | 205:c41fc65bcfb4 | 346 | temp = ((uint32_t)hcec->Init.InitiatorAddress << CEC_INITIATOR_LSB_POS) | DestinationAddress; |
| mbed_official | 205:c41fc65bcfb4 | 347 | hcec->Instance->TXDR = temp; |
| mbed_official | 205:c41fc65bcfb4 | 348 | /* Set TX Start of Message (TXSOM) bit */ |
| mbed_official | 205:c41fc65bcfb4 | 349 | __HAL_CEC_FIRST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 350 | |
| mbed_official | 205:c41fc65bcfb4 | 351 | while (hcec->TxXferCount > 0) |
| mbed_official | 205:c41fc65bcfb4 | 352 | { |
| mbed_official | 205:c41fc65bcfb4 | 353 | hcec->TxXferCount--; |
| mbed_official | 205:c41fc65bcfb4 | 354 | |
| mbed_official | 205:c41fc65bcfb4 | 355 | tickstart = HAL_GetTick(); |
| mbed_official | 205:c41fc65bcfb4 | 356 | while(HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_TXBR)) |
| mbed_official | 205:c41fc65bcfb4 | 357 | { |
| mbed_official | 205:c41fc65bcfb4 | 358 | if(Timeout != HAL_MAX_DELAY) |
| mbed_official | 205:c41fc65bcfb4 | 359 | { |
| mbed_official | 205:c41fc65bcfb4 | 360 | if((HAL_GetTick() - tickstart) > Timeout) |
| mbed_official | 205:c41fc65bcfb4 | 361 | { |
| mbed_official | 205:c41fc65bcfb4 | 362 | hcec->State = HAL_CEC_STATE_TIMEOUT; |
| mbed_official | 205:c41fc65bcfb4 | 363 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 364 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 365 | return HAL_TIMEOUT; |
| mbed_official | 205:c41fc65bcfb4 | 366 | } |
| mbed_official | 205:c41fc65bcfb4 | 367 | } |
| mbed_official | 205:c41fc65bcfb4 | 368 | |
| mbed_official | 205:c41fc65bcfb4 | 369 | /* check whether error occured while waiting for TXBR to be set: |
| mbed_official | 205:c41fc65bcfb4 | 370 | * has Tx underrun occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 371 | * has Tx error occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 372 | * has Tx Missing Acknowledge error occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 373 | * has Arbitration Loss error occurred ? */ |
| mbed_official | 205:c41fc65bcfb4 | 374 | tempisr = hcec->Instance->ISR; |
| mbed_official | 205:c41fc65bcfb4 | 375 | if ((tempisr & (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE|CEC_ISR_ARBLST)) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 376 | { |
| mbed_official | 205:c41fc65bcfb4 | 377 | /* copy ISR for error handling purposes */ |
| mbed_official | 205:c41fc65bcfb4 | 378 | hcec->ErrorCode = tempisr; |
| mbed_official | 205:c41fc65bcfb4 | 379 | /* clear all error flags by default */ |
| mbed_official | 205:c41fc65bcfb4 | 380 | __HAL_CEC_CLEAR_FLAG(hcec, (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE|CEC_ISR_ARBLST)); |
| mbed_official | 205:c41fc65bcfb4 | 381 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 382 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 383 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 384 | } |
| mbed_official | 205:c41fc65bcfb4 | 385 | } |
| mbed_official | 205:c41fc65bcfb4 | 386 | /* TXBR to clear BEFORE writing TXDR register */ |
| mbed_official | 205:c41fc65bcfb4 | 387 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_TXBR); |
| mbed_official | 205:c41fc65bcfb4 | 388 | if (hcec->TxXferCount == 0) |
| mbed_official | 205:c41fc65bcfb4 | 389 | { |
| mbed_official | 205:c41fc65bcfb4 | 390 | /* if last byte transmission, set TX End of Message (TXEOM) bit */ |
| mbed_official | 205:c41fc65bcfb4 | 391 | __HAL_CEC_LAST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 392 | } |
| mbed_official | 205:c41fc65bcfb4 | 393 | hcec->Instance->TXDR = *pData++; |
| mbed_official | 205:c41fc65bcfb4 | 394 | |
| mbed_official | 205:c41fc65bcfb4 | 395 | /* error check after TX byte write up */ |
| mbed_official | 205:c41fc65bcfb4 | 396 | tempisr = hcec->Instance->ISR; |
| mbed_official | 205:c41fc65bcfb4 | 397 | if ((tempisr & (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE|CEC_ISR_ARBLST)) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 398 | { |
| mbed_official | 205:c41fc65bcfb4 | 399 | /* copy ISR for error handling purposes */ |
| mbed_official | 205:c41fc65bcfb4 | 400 | hcec->ErrorCode = tempisr; |
| mbed_official | 205:c41fc65bcfb4 | 401 | /* clear all error flags by default */ |
| mbed_official | 205:c41fc65bcfb4 | 402 | __HAL_CEC_CLEAR_FLAG(hcec, (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE|CEC_ISR_ARBLST)); |
| mbed_official | 205:c41fc65bcfb4 | 403 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 404 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 405 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 406 | } |
| mbed_official | 205:c41fc65bcfb4 | 407 | } /* end while (while (hcec->TxXferCount > 0)) */ |
| mbed_official | 205:c41fc65bcfb4 | 408 | |
| mbed_official | 205:c41fc65bcfb4 | 409 | |
| mbed_official | 205:c41fc65bcfb4 | 410 | /* if no error up to this point, check that transmission is |
| mbed_official | 205:c41fc65bcfb4 | 411 | * complete, that is wait until TXEOM is reset */ |
| mbed_official | 205:c41fc65bcfb4 | 412 | tickstart = HAL_GetTick(); |
| mbed_official | 205:c41fc65bcfb4 | 413 | |
| mbed_official | 205:c41fc65bcfb4 | 414 | while (HAL_IS_BIT_SET(hcec->Instance->CR, CEC_CR_TXEOM)) |
| mbed_official | 205:c41fc65bcfb4 | 415 | { |
| mbed_official | 205:c41fc65bcfb4 | 416 | if(Timeout != HAL_MAX_DELAY) |
| mbed_official | 205:c41fc65bcfb4 | 417 | { |
| mbed_official | 205:c41fc65bcfb4 | 418 | if((HAL_GetTick() - tickstart) > Timeout) |
| mbed_official | 205:c41fc65bcfb4 | 419 | { |
| mbed_official | 205:c41fc65bcfb4 | 420 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 421 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 422 | return HAL_TIMEOUT; |
| mbed_official | 205:c41fc65bcfb4 | 423 | } |
| mbed_official | 205:c41fc65bcfb4 | 424 | } |
| mbed_official | 205:c41fc65bcfb4 | 425 | } |
| mbed_official | 205:c41fc65bcfb4 | 426 | |
| mbed_official | 205:c41fc65bcfb4 | 427 | /* Final error check once all bytes have been transmitted */ |
| mbed_official | 205:c41fc65bcfb4 | 428 | tempisr = hcec->Instance->ISR; |
| mbed_official | 205:c41fc65bcfb4 | 429 | if ((tempisr & (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE)) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 430 | { |
| mbed_official | 205:c41fc65bcfb4 | 431 | /* copy ISR for error handling purposes */ |
| mbed_official | 205:c41fc65bcfb4 | 432 | hcec->ErrorCode = tempisr; |
| mbed_official | 205:c41fc65bcfb4 | 433 | /* clear all error flags by default */ |
| mbed_official | 205:c41fc65bcfb4 | 434 | __HAL_CEC_CLEAR_FLAG(hcec, (CEC_ISR_TXUDR|CEC_ISR_TXERR|CEC_ISR_TXACKE)); |
| mbed_official | 205:c41fc65bcfb4 | 435 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 436 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 437 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 438 | } |
| mbed_official | 205:c41fc65bcfb4 | 439 | |
| mbed_official | 205:c41fc65bcfb4 | 440 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 441 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 442 | |
| mbed_official | 205:c41fc65bcfb4 | 443 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 444 | } |
| mbed_official | 205:c41fc65bcfb4 | 445 | else |
| mbed_official | 205:c41fc65bcfb4 | 446 | { |
| mbed_official | 205:c41fc65bcfb4 | 447 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 448 | } |
| mbed_official | 205:c41fc65bcfb4 | 449 | } |
| mbed_official | 205:c41fc65bcfb4 | 450 | |
| mbed_official | 205:c41fc65bcfb4 | 451 | /** |
| mbed_official | 205:c41fc65bcfb4 | 452 | * @brief Receive data in blocking mode. Must be invoked when RXBR has been set. |
| mbed_official | 205:c41fc65bcfb4 | 453 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 454 | * @param pData: pointer to received data buffer. |
| mbed_official | 205:c41fc65bcfb4 | 455 | * @param Timeout: Timeout duration. |
| mbed_official | 205:c41fc65bcfb4 | 456 | * Note that the received data size is not known beforehand, the latter is known |
| mbed_official | 205:c41fc65bcfb4 | 457 | * when the reception is complete and is stored in hcec->RxXferSize. |
| mbed_official | 205:c41fc65bcfb4 | 458 | * hcec->RxXferSize is the sum of opcodes + operands (0 to 14 operands max). |
| mbed_official | 205:c41fc65bcfb4 | 459 | * If only a header is received, hcec->RxXferSize = 0 |
| mbed_official | 205:c41fc65bcfb4 | 460 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 461 | */ |
| mbed_official | 205:c41fc65bcfb4 | 462 | HAL_StatusTypeDef HAL_CEC_Receive(CEC_HandleTypeDef *hcec, uint8_t *pData, uint32_t Timeout) |
| mbed_official | 205:c41fc65bcfb4 | 463 | { |
| mbed_official | 205:c41fc65bcfb4 | 464 | uint32_t temp; |
| mbed_official | 205:c41fc65bcfb4 | 465 | uint32_t tickstart = 0; |
| mbed_official | 205:c41fc65bcfb4 | 466 | |
| mbed_official | 205:c41fc65bcfb4 | 467 | if (hcec->State == HAL_CEC_STATE_READY) |
| mbed_official | 205:c41fc65bcfb4 | 468 | { |
| mbed_official | 205:c41fc65bcfb4 | 469 | hcec->ErrorCode = HAL_CEC_ERROR_NONE; |
| mbed_official | 205:c41fc65bcfb4 | 470 | if (pData == NULL ) |
| mbed_official | 205:c41fc65bcfb4 | 471 | { |
| mbed_official | 205:c41fc65bcfb4 | 472 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 473 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 474 | } |
| mbed_official | 205:c41fc65bcfb4 | 475 | |
| mbed_official | 205:c41fc65bcfb4 | 476 | hcec->RxXferSize = 0; |
| mbed_official | 205:c41fc65bcfb4 | 477 | /* Process Locked */ |
| mbed_official | 205:c41fc65bcfb4 | 478 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 479 | |
| mbed_official | 205:c41fc65bcfb4 | 480 | |
| mbed_official | 205:c41fc65bcfb4 | 481 | /* Rx loop until CEC_ISR_RXEND is set */ |
| mbed_official | 205:c41fc65bcfb4 | 482 | while (HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_RXEND)) |
| mbed_official | 205:c41fc65bcfb4 | 483 | { |
| mbed_official | 205:c41fc65bcfb4 | 484 | tickstart = HAL_GetTick(); |
| mbed_official | 205:c41fc65bcfb4 | 485 | /* Wait for next byte to be received */ |
| mbed_official | 205:c41fc65bcfb4 | 486 | while (HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_RXBR)) |
| mbed_official | 205:c41fc65bcfb4 | 487 | { |
| mbed_official | 205:c41fc65bcfb4 | 488 | if(Timeout != HAL_MAX_DELAY) |
| mbed_official | 205:c41fc65bcfb4 | 489 | { |
| mbed_official | 205:c41fc65bcfb4 | 490 | if((HAL_GetTick() - tickstart) > Timeout) |
| mbed_official | 205:c41fc65bcfb4 | 491 | { |
| mbed_official | 205:c41fc65bcfb4 | 492 | hcec->State = HAL_CEC_STATE_TIMEOUT; |
| mbed_official | 205:c41fc65bcfb4 | 493 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 494 | return HAL_TIMEOUT; |
| mbed_official | 205:c41fc65bcfb4 | 495 | } |
| mbed_official | 205:c41fc65bcfb4 | 496 | } |
| mbed_official | 205:c41fc65bcfb4 | 497 | /* any error so far ? |
| mbed_official | 205:c41fc65bcfb4 | 498 | * has Rx Missing Acknowledge occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 499 | * has Rx Long Bit Period error occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 500 | * has Rx Short Bit Period error occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 501 | * has Rx Bit Rising error occurred ? |
| mbed_official | 205:c41fc65bcfb4 | 502 | * has Rx Overrun error occurred ? */ |
| mbed_official | 205:c41fc65bcfb4 | 503 | temp = (uint32_t) (hcec->Instance->ISR); |
| mbed_official | 205:c41fc65bcfb4 | 504 | if ((temp & (CEC_ISR_RXACKE|CEC_ISR_LBPE|CEC_ISR_SBPE|CEC_ISR_BRE|CEC_ISR_RXOVR)) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 505 | { |
| mbed_official | 205:c41fc65bcfb4 | 506 | /* copy ISR for error handling purposes */ |
| mbed_official | 205:c41fc65bcfb4 | 507 | hcec->ErrorCode = temp; |
| mbed_official | 205:c41fc65bcfb4 | 508 | /* clear all error flags by default */ |
| mbed_official | 205:c41fc65bcfb4 | 509 | __HAL_CEC_CLEAR_FLAG(hcec, (CEC_ISR_RXACKE|CEC_ISR_LBPE|CEC_ISR_SBPE|CEC_ISR_BRE|CEC_ISR_RXOVR)); |
| mbed_official | 205:c41fc65bcfb4 | 510 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 511 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 512 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 513 | } |
| mbed_official | 205:c41fc65bcfb4 | 514 | } /* while (HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_RXBR)) */ |
| mbed_official | 205:c41fc65bcfb4 | 515 | |
| mbed_official | 205:c41fc65bcfb4 | 516 | |
| mbed_official | 205:c41fc65bcfb4 | 517 | /* read received data */ |
| mbed_official | 205:c41fc65bcfb4 | 518 | *pData++ = hcec->Instance->RXDR; |
| mbed_official | 205:c41fc65bcfb4 | 519 | temp = (uint32_t) (hcec->Instance->ISR); |
| mbed_official | 205:c41fc65bcfb4 | 520 | /* end of message ? */ |
| mbed_official | 205:c41fc65bcfb4 | 521 | if ((temp & CEC_ISR_RXEND) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 522 | { |
| mbed_official | 205:c41fc65bcfb4 | 523 | assert_param(IS_CEC_MSGSIZE(hcec->RxXferSize)); |
| mbed_official | 205:c41fc65bcfb4 | 524 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_RXEND); |
| mbed_official | 205:c41fc65bcfb4 | 525 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 526 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 527 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 528 | } |
| mbed_official | 205:c41fc65bcfb4 | 529 | |
| mbed_official | 205:c41fc65bcfb4 | 530 | /* clear Rx-Byte Received flag */ |
| mbed_official | 205:c41fc65bcfb4 | 531 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_RXBR); |
| mbed_official | 205:c41fc65bcfb4 | 532 | /* increment payload byte counter */ |
| mbed_official | 205:c41fc65bcfb4 | 533 | hcec->RxXferSize++; |
| mbed_official | 205:c41fc65bcfb4 | 534 | } /* while (HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_RXEND)) */ |
| mbed_official | 205:c41fc65bcfb4 | 535 | |
| mbed_official | 205:c41fc65bcfb4 | 536 | /* if the instructions below are executed, it means RXEND was set when RXBR was |
| mbed_official | 205:c41fc65bcfb4 | 537 | * set for the first time: |
| mbed_official | 205:c41fc65bcfb4 | 538 | * the code within the "while (HAL_IS_BIT_CLR(hcec->Instance->ISR, CEC_ISR_RXEND))" |
| mbed_official | 205:c41fc65bcfb4 | 539 | * loop has not been executed and this means a single byte has been sent */ |
| mbed_official | 205:c41fc65bcfb4 | 540 | *pData++ = hcec->Instance->RXDR; |
| mbed_official | 205:c41fc65bcfb4 | 541 | /* only one header is received: RxXferSize is set to 0 (no operand, no opcode) */ |
| mbed_official | 205:c41fc65bcfb4 | 542 | hcec->RxXferSize = 0; |
| mbed_official | 205:c41fc65bcfb4 | 543 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_RXEND); |
| mbed_official | 205:c41fc65bcfb4 | 544 | |
| mbed_official | 205:c41fc65bcfb4 | 545 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 546 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 547 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 548 | } |
| mbed_official | 205:c41fc65bcfb4 | 549 | else |
| mbed_official | 205:c41fc65bcfb4 | 550 | { |
| mbed_official | 205:c41fc65bcfb4 | 551 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 552 | } |
| mbed_official | 205:c41fc65bcfb4 | 553 | } |
| mbed_official | 205:c41fc65bcfb4 | 554 | |
| mbed_official | 205:c41fc65bcfb4 | 555 | |
| mbed_official | 205:c41fc65bcfb4 | 556 | /** |
| mbed_official | 205:c41fc65bcfb4 | 557 | * @brief Send data in interrupt mode |
| mbed_official | 205:c41fc65bcfb4 | 558 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 559 | * @param DestinationAddress: destination logical address |
| mbed_official | 205:c41fc65bcfb4 | 560 | * @param pData: pointer to input byte data buffer |
| mbed_official | 205:c41fc65bcfb4 | 561 | * @param Size: amount of data to be sent in bytes (without counting the header). |
| mbed_official | 205:c41fc65bcfb4 | 562 | * 0 means only the header is sent (ping operation). |
| mbed_official | 205:c41fc65bcfb4 | 563 | * Maximum TX size is 15 bytes (1 opcode and up to 14 operands). |
| mbed_official | 205:c41fc65bcfb4 | 564 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 565 | */ |
| mbed_official | 205:c41fc65bcfb4 | 566 | HAL_StatusTypeDef HAL_CEC_Transmit_IT(CEC_HandleTypeDef *hcec, uint8_t DestinationAddress, uint8_t *pData, uint32_t Size) |
| mbed_official | 205:c41fc65bcfb4 | 567 | { |
| mbed_official | 205:c41fc65bcfb4 | 568 | uint8_t temp = 0; |
| mbed_official | 205:c41fc65bcfb4 | 569 | /* if the IP isn't already busy and if there is no previous transmission |
| mbed_official | 205:c41fc65bcfb4 | 570 | already pending due to arbitration lost */ |
| mbed_official | 205:c41fc65bcfb4 | 571 | if (((hcec->State == HAL_CEC_STATE_READY) || (hcec->State == HAL_CEC_STATE_STANDBY_RX)) |
| mbed_official | 205:c41fc65bcfb4 | 572 | && (__HAL_CEC_GET_TRANSMISSION_START_FLAG(hcec) == RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 573 | { |
| mbed_official | 205:c41fc65bcfb4 | 574 | if((pData == NULL ) && (Size > 0)) |
| mbed_official | 205:c41fc65bcfb4 | 575 | { |
| mbed_official | 205:c41fc65bcfb4 | 576 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 577 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 578 | } |
| mbed_official | 205:c41fc65bcfb4 | 579 | |
| mbed_official | 205:c41fc65bcfb4 | 580 | assert_param(IS_CEC_ADDRESS(DestinationAddress)); |
| mbed_official | 205:c41fc65bcfb4 | 581 | assert_param(IS_CEC_MSGSIZE(Size)); |
| mbed_official | 205:c41fc65bcfb4 | 582 | |
| mbed_official | 205:c41fc65bcfb4 | 583 | /* Process Locked */ |
| mbed_official | 205:c41fc65bcfb4 | 584 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 585 | hcec->pTxBuffPtr = pData; |
| mbed_official | 205:c41fc65bcfb4 | 586 | hcec->State = HAL_CEC_STATE_BUSY_TX; |
| mbed_official | 205:c41fc65bcfb4 | 587 | hcec->ErrorCode = HAL_CEC_ERROR_NONE; |
| mbed_official | 205:c41fc65bcfb4 | 588 | |
| mbed_official | 205:c41fc65bcfb4 | 589 | /* Disable Peripheral to write CEC_IER register */ |
| mbed_official | 205:c41fc65bcfb4 | 590 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 591 | |
| mbed_official | 205:c41fc65bcfb4 | 592 | /* Enable the following two CEC Transmission interrupts as |
| mbed_official | 205:c41fc65bcfb4 | 593 | * well as the following CEC Transmission Errors interrupts: |
| mbed_official | 205:c41fc65bcfb4 | 594 | * Tx Byte Request IT |
| mbed_official | 205:c41fc65bcfb4 | 595 | * End of Transmission IT |
| mbed_official | 205:c41fc65bcfb4 | 596 | * Tx Missing Acknowledge IT |
| mbed_official | 205:c41fc65bcfb4 | 597 | * Tx-Error IT |
| mbed_official | 205:c41fc65bcfb4 | 598 | * Tx-Buffer Underrun IT |
| mbed_official | 205:c41fc65bcfb4 | 599 | * Tx arbitration lost */ |
| mbed_official | 205:c41fc65bcfb4 | 600 | __HAL_CEC_ENABLE_IT(hcec, CEC_IER_TXBRIE|CEC_IER_TXENDIE|CEC_IER_TX_ALL_ERR); |
| mbed_official | 205:c41fc65bcfb4 | 601 | |
| mbed_official | 205:c41fc65bcfb4 | 602 | /* Enable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 603 | __HAL_CEC_ENABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 604 | |
| mbed_official | 205:c41fc65bcfb4 | 605 | /* initialize the number of bytes to send, |
| mbed_official | 205:c41fc65bcfb4 | 606 | * 0 means only one header is sent (ping operation) */ |
| mbed_official | 205:c41fc65bcfb4 | 607 | hcec->TxXferCount = Size; |
| mbed_official | 205:c41fc65bcfb4 | 608 | |
| mbed_official | 205:c41fc65bcfb4 | 609 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 610 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 611 | |
| mbed_official | 205:c41fc65bcfb4 | 612 | /* in case of no payload (Size = 0), sender is only pinging the system; |
| mbed_official | 205:c41fc65bcfb4 | 613 | * Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */ |
| mbed_official | 205:c41fc65bcfb4 | 614 | if (Size == 0) |
| mbed_official | 205:c41fc65bcfb4 | 615 | { |
| mbed_official | 205:c41fc65bcfb4 | 616 | __HAL_CEC_LAST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 617 | } |
| mbed_official | 205:c41fc65bcfb4 | 618 | |
| mbed_official | 205:c41fc65bcfb4 | 619 | /* send header block */ |
| mbed_official | 205:c41fc65bcfb4 | 620 | temp = ((uint32_t)hcec->Init.InitiatorAddress << CEC_INITIATOR_LSB_POS) | DestinationAddress; |
| mbed_official | 205:c41fc65bcfb4 | 621 | hcec->Instance->TXDR = temp; |
| mbed_official | 205:c41fc65bcfb4 | 622 | /* Set TX Start of Message (TXSOM) bit */ |
| mbed_official | 205:c41fc65bcfb4 | 623 | __HAL_CEC_FIRST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 624 | |
| mbed_official | 205:c41fc65bcfb4 | 625 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 626 | } |
| mbed_official | 205:c41fc65bcfb4 | 627 | /* if the IP is already busy or if there is a previous transmission |
| mbed_official | 205:c41fc65bcfb4 | 628 | already pending due to arbitration loss */ |
| mbed_official | 205:c41fc65bcfb4 | 629 | else if ((hcec->State == HAL_CEC_STATE_BUSY_TX) |
| mbed_official | 205:c41fc65bcfb4 | 630 | || (__HAL_CEC_GET_TRANSMISSION_START_FLAG(hcec) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 631 | { |
| mbed_official | 205:c41fc65bcfb4 | 632 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 633 | /* set state to BUSY TX, in case it wasn't set already (case |
| mbed_official | 205:c41fc65bcfb4 | 634 | * of transmission new attempt after arbitration loss) */ |
| mbed_official | 205:c41fc65bcfb4 | 635 | if (hcec->State != HAL_CEC_STATE_BUSY_TX) |
| mbed_official | 205:c41fc65bcfb4 | 636 | { |
| mbed_official | 205:c41fc65bcfb4 | 637 | hcec->State = HAL_CEC_STATE_BUSY_TX; |
| mbed_official | 205:c41fc65bcfb4 | 638 | } |
| mbed_official | 205:c41fc65bcfb4 | 639 | |
| mbed_official | 205:c41fc65bcfb4 | 640 | /* if all data have been sent */ |
| mbed_official | 205:c41fc65bcfb4 | 641 | if(hcec->TxXferCount == 0) |
| mbed_official | 205:c41fc65bcfb4 | 642 | { |
| mbed_official | 205:c41fc65bcfb4 | 643 | /* Disable Peripheral to write CEC_IER register */ |
| mbed_official | 205:c41fc65bcfb4 | 644 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 645 | |
| mbed_official | 205:c41fc65bcfb4 | 646 | /* Disable the CEC Transmission Interrupts */ |
| mbed_official | 205:c41fc65bcfb4 | 647 | __HAL_CEC_DISABLE_IT(hcec, CEC_IER_TXBRIE|CEC_IER_TXENDIE); |
| mbed_official | 205:c41fc65bcfb4 | 648 | /* Disable the CEC Transmission Error Interrupts */ |
| mbed_official | 205:c41fc65bcfb4 | 649 | __HAL_CEC_DISABLE_IT(hcec, CEC_IER_TX_ALL_ERR); |
| mbed_official | 205:c41fc65bcfb4 | 650 | |
| mbed_official | 205:c41fc65bcfb4 | 651 | /* Enable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 652 | __HAL_CEC_ENABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 653 | |
| mbed_official | 205:c41fc65bcfb4 | 654 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_TXBR|CEC_ISR_TXEND); |
| mbed_official | 205:c41fc65bcfb4 | 655 | |
| mbed_official | 205:c41fc65bcfb4 | 656 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 657 | /* Call the Process Unlocked before calling the Tx call back API to give the possibility to |
| mbed_official | 205:c41fc65bcfb4 | 658 | start again the Transmission under the Tx call back API */ |
| mbed_official | 205:c41fc65bcfb4 | 659 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 660 | |
| mbed_official | 205:c41fc65bcfb4 | 661 | HAL_CEC_TxCpltCallback(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 662 | |
| mbed_official | 205:c41fc65bcfb4 | 663 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 664 | } |
| mbed_official | 205:c41fc65bcfb4 | 665 | else |
| mbed_official | 205:c41fc65bcfb4 | 666 | { |
| mbed_official | 205:c41fc65bcfb4 | 667 | if (hcec->TxXferCount == 1) |
| mbed_official | 205:c41fc65bcfb4 | 668 | { |
| mbed_official | 205:c41fc65bcfb4 | 669 | /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */ |
| mbed_official | 205:c41fc65bcfb4 | 670 | __HAL_CEC_LAST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 671 | } |
| mbed_official | 205:c41fc65bcfb4 | 672 | /* clear Tx-Byte request flag */ |
| mbed_official | 205:c41fc65bcfb4 | 673 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_TXBR); |
| mbed_official | 205:c41fc65bcfb4 | 674 | hcec->Instance->TXDR = *hcec->pTxBuffPtr++; |
| mbed_official | 205:c41fc65bcfb4 | 675 | hcec->TxXferCount--; |
| mbed_official | 205:c41fc65bcfb4 | 676 | |
| mbed_official | 205:c41fc65bcfb4 | 677 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 678 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 679 | |
| mbed_official | 205:c41fc65bcfb4 | 680 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 681 | } |
| mbed_official | 205:c41fc65bcfb4 | 682 | } |
| mbed_official | 205:c41fc65bcfb4 | 683 | else |
| mbed_official | 205:c41fc65bcfb4 | 684 | { |
| mbed_official | 205:c41fc65bcfb4 | 685 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 686 | } |
| mbed_official | 205:c41fc65bcfb4 | 687 | } |
| mbed_official | 205:c41fc65bcfb4 | 688 | |
| mbed_official | 205:c41fc65bcfb4 | 689 | |
| mbed_official | 205:c41fc65bcfb4 | 690 | /** |
| mbed_official | 205:c41fc65bcfb4 | 691 | * @brief Receive data in interrupt mode. |
| mbed_official | 205:c41fc65bcfb4 | 692 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 693 | * @param pData: pointer to received data buffer. |
| mbed_official | 205:c41fc65bcfb4 | 694 | * Note that the received data size is not known beforehand, the latter is known |
| mbed_official | 205:c41fc65bcfb4 | 695 | * when the reception is complete and is stored in hcec->RxXferSize. |
| mbed_official | 205:c41fc65bcfb4 | 696 | * hcec->RxXferSize is the sum of opcodes + operands (0 to 14 operands max). |
| mbed_official | 205:c41fc65bcfb4 | 697 | * If only a header is received, hcec->RxXferSize = 0 |
| mbed_official | 205:c41fc65bcfb4 | 698 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 699 | */ |
| mbed_official | 205:c41fc65bcfb4 | 700 | HAL_StatusTypeDef HAL_CEC_Receive_IT(CEC_HandleTypeDef *hcec, uint8_t *pData) |
| mbed_official | 205:c41fc65bcfb4 | 701 | { |
| mbed_official | 205:c41fc65bcfb4 | 702 | if(hcec->State == HAL_CEC_STATE_READY) |
| mbed_official | 205:c41fc65bcfb4 | 703 | { |
| mbed_official | 205:c41fc65bcfb4 | 704 | if(pData == NULL ) |
| mbed_official | 205:c41fc65bcfb4 | 705 | { |
| mbed_official | 205:c41fc65bcfb4 | 706 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 707 | return HAL_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 708 | } |
| mbed_official | 205:c41fc65bcfb4 | 709 | |
| mbed_official | 205:c41fc65bcfb4 | 710 | /* Process Locked */ |
| mbed_official | 205:c41fc65bcfb4 | 711 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 712 | hcec->RxXferSize = 0; |
| mbed_official | 205:c41fc65bcfb4 | 713 | hcec->pRxBuffPtr = pData; |
| mbed_official | 205:c41fc65bcfb4 | 714 | hcec->ErrorCode = HAL_CEC_ERROR_NONE; |
| mbed_official | 205:c41fc65bcfb4 | 715 | /* the IP is moving to a ready to receive state */ |
| mbed_official | 205:c41fc65bcfb4 | 716 | hcec->State = HAL_CEC_STATE_STANDBY_RX; |
| mbed_official | 205:c41fc65bcfb4 | 717 | |
| mbed_official | 205:c41fc65bcfb4 | 718 | /* Disable Peripheral to write CEC_IER register */ |
| mbed_official | 205:c41fc65bcfb4 | 719 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 720 | |
| mbed_official | 205:c41fc65bcfb4 | 721 | /* Enable the following CEC Reception Error Interrupts: |
| mbed_official | 205:c41fc65bcfb4 | 722 | * Rx overrun |
| mbed_official | 205:c41fc65bcfb4 | 723 | * Rx bit rising error |
| mbed_official | 205:c41fc65bcfb4 | 724 | * Rx short bit period error |
| mbed_official | 205:c41fc65bcfb4 | 725 | * Rx long bit period error |
| mbed_official | 205:c41fc65bcfb4 | 726 | * Rx missing acknowledge */ |
| mbed_official | 205:c41fc65bcfb4 | 727 | __HAL_CEC_ENABLE_IT(hcec, CEC_IER_RX_ALL_ERR); |
| mbed_official | 205:c41fc65bcfb4 | 728 | |
| mbed_official | 205:c41fc65bcfb4 | 729 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 730 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 731 | |
| mbed_official | 205:c41fc65bcfb4 | 732 | /* Enable the following two CEC Reception interrupts: |
| mbed_official | 205:c41fc65bcfb4 | 733 | * Rx Byte Received IT |
| mbed_official | 205:c41fc65bcfb4 | 734 | * End of Reception IT */ |
| mbed_official | 205:c41fc65bcfb4 | 735 | __HAL_CEC_ENABLE_IT(hcec, CEC_IER_RXBRIE|CEC_IER_RXENDIE); |
| mbed_official | 205:c41fc65bcfb4 | 736 | |
| mbed_official | 205:c41fc65bcfb4 | 737 | __HAL_CEC_ENABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 738 | |
| mbed_official | 205:c41fc65bcfb4 | 739 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 740 | } |
| mbed_official | 205:c41fc65bcfb4 | 741 | else |
| mbed_official | 205:c41fc65bcfb4 | 742 | { |
| mbed_official | 205:c41fc65bcfb4 | 743 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 744 | } |
| mbed_official | 205:c41fc65bcfb4 | 745 | } |
| mbed_official | 205:c41fc65bcfb4 | 746 | |
| mbed_official | 205:c41fc65bcfb4 | 747 | |
| mbed_official | 205:c41fc65bcfb4 | 748 | |
| mbed_official | 205:c41fc65bcfb4 | 749 | /** |
| mbed_official | 205:c41fc65bcfb4 | 750 | * @brief This function handles CEC interrupt requests. |
| mbed_official | 205:c41fc65bcfb4 | 751 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 752 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 753 | */ |
| mbed_official | 205:c41fc65bcfb4 | 754 | void HAL_CEC_IRQHandler(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 755 | { |
| mbed_official | 205:c41fc65bcfb4 | 756 | /* save interrupts register for further error or interrupts handling purposes */ |
| mbed_official | 205:c41fc65bcfb4 | 757 | hcec->ErrorCode = hcec->Instance->ISR; |
| mbed_official | 205:c41fc65bcfb4 | 758 | /* CEC TX missing acknowledge error interrupt occurred -------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 759 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_TXACKE) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_TXACKEIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 760 | { |
| mbed_official | 205:c41fc65bcfb4 | 761 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_TXACKE); |
| mbed_official | 205:c41fc65bcfb4 | 762 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 763 | } |
| mbed_official | 205:c41fc65bcfb4 | 764 | |
| mbed_official | 205:c41fc65bcfb4 | 765 | /* CEC transmit error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 766 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_TXERR) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_TXERRIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 767 | { |
| mbed_official | 205:c41fc65bcfb4 | 768 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_TXERR); |
| mbed_official | 205:c41fc65bcfb4 | 769 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 770 | } |
| mbed_official | 205:c41fc65bcfb4 | 771 | |
| mbed_official | 205:c41fc65bcfb4 | 772 | /* CEC TX underrun error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 773 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_TXUDR) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_TXUDRIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 774 | { |
| mbed_official | 205:c41fc65bcfb4 | 775 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_TXUDR); |
| mbed_official | 205:c41fc65bcfb4 | 776 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 777 | } |
| mbed_official | 205:c41fc65bcfb4 | 778 | |
| mbed_official | 205:c41fc65bcfb4 | 779 | /* CEC TX arbitration error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 780 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_ARBLST) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_ARBLSTIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 781 | { |
| mbed_official | 205:c41fc65bcfb4 | 782 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_ARBLST); |
| mbed_official | 205:c41fc65bcfb4 | 783 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 784 | } |
| mbed_official | 205:c41fc65bcfb4 | 785 | |
| mbed_official | 205:c41fc65bcfb4 | 786 | /* CEC RX overrun error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 787 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_RXOVR) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_RXOVRIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 788 | { |
| mbed_official | 205:c41fc65bcfb4 | 789 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_RXOVR); |
| mbed_official | 205:c41fc65bcfb4 | 790 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 791 | } |
| mbed_official | 205:c41fc65bcfb4 | 792 | |
| mbed_official | 205:c41fc65bcfb4 | 793 | /* CEC RX bit rising error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 794 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_BRE) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_BREIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 795 | { |
| mbed_official | 205:c41fc65bcfb4 | 796 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_BRE); |
| mbed_official | 205:c41fc65bcfb4 | 797 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 798 | } |
| mbed_official | 205:c41fc65bcfb4 | 799 | |
| mbed_official | 205:c41fc65bcfb4 | 800 | /* CEC RX short bit period error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 801 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_SBPE) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_SBPEIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 802 | { |
| mbed_official | 205:c41fc65bcfb4 | 803 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_SBPE); |
| mbed_official | 205:c41fc65bcfb4 | 804 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 805 | } |
| mbed_official | 205:c41fc65bcfb4 | 806 | |
| mbed_official | 205:c41fc65bcfb4 | 807 | /* CEC RX long bit period error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 808 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_LBPE) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_LBPEIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 809 | { |
| mbed_official | 205:c41fc65bcfb4 | 810 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_LBPE); |
| mbed_official | 205:c41fc65bcfb4 | 811 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 812 | } |
| mbed_official | 205:c41fc65bcfb4 | 813 | |
| mbed_official | 205:c41fc65bcfb4 | 814 | /* CEC RX missing acknowledge error interrupt occured --------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 815 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_RXACKE) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_RXACKEIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 816 | { |
| mbed_official | 205:c41fc65bcfb4 | 817 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_RXACKE); |
| mbed_official | 205:c41fc65bcfb4 | 818 | hcec->State = HAL_CEC_STATE_ERROR; |
| mbed_official | 205:c41fc65bcfb4 | 819 | } |
| mbed_official | 205:c41fc65bcfb4 | 820 | |
| mbed_official | 205:c41fc65bcfb4 | 821 | if ((hcec->ErrorCode & CEC_ISR_ALL_ERROR) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 822 | { |
| mbed_official | 205:c41fc65bcfb4 | 823 | HAL_CEC_ErrorCallback(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 824 | } |
| mbed_official | 205:c41fc65bcfb4 | 825 | |
| mbed_official | 205:c41fc65bcfb4 | 826 | /* CEC RX byte received interrupt ---------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 827 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_RXBR) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_RXBRIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 828 | { |
| mbed_official | 205:c41fc65bcfb4 | 829 | /* RXBR IT is cleared during HAL_CEC_Transmit_IT processing */ |
| mbed_official | 205:c41fc65bcfb4 | 830 | CEC_Receive_IT(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 831 | } |
| mbed_official | 205:c41fc65bcfb4 | 832 | |
| mbed_official | 205:c41fc65bcfb4 | 833 | /* CEC RX end received interrupt ---------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 834 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_RXEND) != RESET) && (__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_RXENDIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 835 | { |
| mbed_official | 205:c41fc65bcfb4 | 836 | /* RXBR IT is cleared during HAL_CEC_Transmit_IT processing */ |
| mbed_official | 205:c41fc65bcfb4 | 837 | CEC_Receive_IT(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 838 | } |
| mbed_official | 205:c41fc65bcfb4 | 839 | |
| mbed_official | 205:c41fc65bcfb4 | 840 | |
| mbed_official | 205:c41fc65bcfb4 | 841 | /* CEC TX byte request interrupt ------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 842 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_TXBR) != RESET) &&(__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_TXBRIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 843 | { |
| mbed_official | 205:c41fc65bcfb4 | 844 | /* TXBR IT is cleared during HAL_CEC_Transmit_IT processing */ |
| mbed_official | 205:c41fc65bcfb4 | 845 | CEC_Transmit_IT(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 846 | } |
| mbed_official | 205:c41fc65bcfb4 | 847 | |
| mbed_official | 205:c41fc65bcfb4 | 848 | /* CEC TX end interrupt ------------------------------------------------*/ |
| mbed_official | 205:c41fc65bcfb4 | 849 | if((__HAL_CEC_GET_IT(hcec, CEC_ISR_TXEND) != RESET) &&(__HAL_CEC_GET_IT_SOURCE(hcec, CEC_IER_TXENDIE) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 850 | { |
| mbed_official | 205:c41fc65bcfb4 | 851 | /* TXEND IT is cleared during HAL_CEC_Transmit_IT processing */ |
| mbed_official | 205:c41fc65bcfb4 | 852 | CEC_Transmit_IT(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 853 | } |
| mbed_official | 205:c41fc65bcfb4 | 854 | |
| mbed_official | 205:c41fc65bcfb4 | 855 | } |
| mbed_official | 205:c41fc65bcfb4 | 856 | |
| mbed_official | 205:c41fc65bcfb4 | 857 | |
| mbed_official | 205:c41fc65bcfb4 | 858 | /** |
| mbed_official | 205:c41fc65bcfb4 | 859 | * @brief Tx Transfer completed callback |
| mbed_official | 205:c41fc65bcfb4 | 860 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 861 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 862 | */ |
| mbed_official | 205:c41fc65bcfb4 | 863 | __weak void HAL_CEC_TxCpltCallback(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 864 | { |
| mbed_official | 205:c41fc65bcfb4 | 865 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 205:c41fc65bcfb4 | 866 | the HAL_CEC_TxCpltCallback can be implemented in the user file |
| mbed_official | 205:c41fc65bcfb4 | 867 | */ |
| mbed_official | 205:c41fc65bcfb4 | 868 | } |
| mbed_official | 205:c41fc65bcfb4 | 869 | |
| mbed_official | 205:c41fc65bcfb4 | 870 | /** |
| mbed_official | 205:c41fc65bcfb4 | 871 | * @brief Rx Transfer completed callback |
| mbed_official | 205:c41fc65bcfb4 | 872 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 873 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 874 | */ |
| mbed_official | 205:c41fc65bcfb4 | 875 | __weak void HAL_CEC_RxCpltCallback(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 876 | { |
| mbed_official | 205:c41fc65bcfb4 | 877 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 205:c41fc65bcfb4 | 878 | the HAL_CEC_TxCpltCallback can be implemented in the user file |
| mbed_official | 205:c41fc65bcfb4 | 879 | */ |
| mbed_official | 205:c41fc65bcfb4 | 880 | } |
| mbed_official | 205:c41fc65bcfb4 | 881 | |
| mbed_official | 205:c41fc65bcfb4 | 882 | /** |
| mbed_official | 205:c41fc65bcfb4 | 883 | * @brief CEC error callbacks |
| mbed_official | 205:c41fc65bcfb4 | 884 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 885 | * @retval None |
| mbed_official | 205:c41fc65bcfb4 | 886 | */ |
| mbed_official | 205:c41fc65bcfb4 | 887 | __weak void HAL_CEC_ErrorCallback(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 888 | { |
| mbed_official | 205:c41fc65bcfb4 | 889 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 205:c41fc65bcfb4 | 890 | the HAL_CEC_ErrorCallback can be implemented in the user file |
| mbed_official | 205:c41fc65bcfb4 | 891 | */ |
| mbed_official | 205:c41fc65bcfb4 | 892 | } |
| mbed_official | 205:c41fc65bcfb4 | 893 | |
| mbed_official | 205:c41fc65bcfb4 | 894 | |
| mbed_official | 205:c41fc65bcfb4 | 895 | /** |
| mbed_official | 205:c41fc65bcfb4 | 896 | * @brief Send data in interrupt mode |
| mbed_official | 205:c41fc65bcfb4 | 897 | * @param hcec: CEC handle. |
| mbed_official | 205:c41fc65bcfb4 | 898 | * Function called under interruption only, once |
| mbed_official | 205:c41fc65bcfb4 | 899 | * interruptions have been enabled by HAL_CEC_Transmit_IT() |
| mbed_official | 205:c41fc65bcfb4 | 900 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 901 | */ |
| mbed_official | 205:c41fc65bcfb4 | 902 | static HAL_StatusTypeDef CEC_Transmit_IT(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 903 | { |
| mbed_official | 205:c41fc65bcfb4 | 904 | /* if the IP is already busy or if there is a previous transmission |
| mbed_official | 205:c41fc65bcfb4 | 905 | already pending due to arbitration loss */ |
| mbed_official | 205:c41fc65bcfb4 | 906 | if ((hcec->State == HAL_CEC_STATE_BUSY_TX) |
| mbed_official | 205:c41fc65bcfb4 | 907 | || (__HAL_CEC_GET_TRANSMISSION_START_FLAG(hcec) != RESET)) |
| mbed_official | 205:c41fc65bcfb4 | 908 | { |
| mbed_official | 205:c41fc65bcfb4 | 909 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 910 | /* set state to BUSY TX, in case it wasn't set already (case |
| mbed_official | 205:c41fc65bcfb4 | 911 | * of transmission new attempt after arbitration loss) */ |
| mbed_official | 205:c41fc65bcfb4 | 912 | if (hcec->State != HAL_CEC_STATE_BUSY_TX) |
| mbed_official | 205:c41fc65bcfb4 | 913 | { |
| mbed_official | 205:c41fc65bcfb4 | 914 | hcec->State = HAL_CEC_STATE_BUSY_TX; |
| mbed_official | 205:c41fc65bcfb4 | 915 | } |
| mbed_official | 205:c41fc65bcfb4 | 916 | |
| mbed_official | 205:c41fc65bcfb4 | 917 | /* if all data have been sent */ |
| mbed_official | 205:c41fc65bcfb4 | 918 | if(hcec->TxXferCount == 0) |
| mbed_official | 205:c41fc65bcfb4 | 919 | { |
| mbed_official | 205:c41fc65bcfb4 | 920 | /* Disable Peripheral to write CEC_IER register */ |
| mbed_official | 205:c41fc65bcfb4 | 921 | __HAL_CEC_DISABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 922 | |
| mbed_official | 205:c41fc65bcfb4 | 923 | /* Disable the CEC Transmission Interrupts */ |
| mbed_official | 205:c41fc65bcfb4 | 924 | __HAL_CEC_DISABLE_IT(hcec, CEC_IER_TXBRIE|CEC_IER_TXENDIE); |
| mbed_official | 205:c41fc65bcfb4 | 925 | /* Disable the CEC Transmission Error Interrupts */ |
| mbed_official | 205:c41fc65bcfb4 | 926 | __HAL_CEC_DISABLE_IT(hcec, CEC_IER_TX_ALL_ERR); |
| mbed_official | 205:c41fc65bcfb4 | 927 | |
| mbed_official | 205:c41fc65bcfb4 | 928 | /* Enable the Peripheral */ |
| mbed_official | 205:c41fc65bcfb4 | 929 | __HAL_CEC_ENABLE(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 930 | |
| mbed_official | 205:c41fc65bcfb4 | 931 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_TXBR|CEC_ISR_TXEND); |
| mbed_official | 205:c41fc65bcfb4 | 932 | |
| mbed_official | 205:c41fc65bcfb4 | 933 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 934 | /* Call the Process Unlocked before calling the Tx call back API to give the possibility to |
| mbed_official | 205:c41fc65bcfb4 | 935 | start again the Transmission under the Tx call back API */ |
| mbed_official | 205:c41fc65bcfb4 | 936 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 937 | |
| mbed_official | 205:c41fc65bcfb4 | 938 | HAL_CEC_TxCpltCallback(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 939 | |
| mbed_official | 205:c41fc65bcfb4 | 940 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 941 | } |
| mbed_official | 205:c41fc65bcfb4 | 942 | else |
| mbed_official | 205:c41fc65bcfb4 | 943 | { |
| mbed_official | 205:c41fc65bcfb4 | 944 | if (hcec->TxXferCount == 1) |
| mbed_official | 205:c41fc65bcfb4 | 945 | { |
| mbed_official | 205:c41fc65bcfb4 | 946 | /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */ |
| mbed_official | 205:c41fc65bcfb4 | 947 | __HAL_CEC_LAST_BYTE_TX_SET(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 948 | } |
| mbed_official | 205:c41fc65bcfb4 | 949 | /* clear Tx-Byte request flag */ |
| mbed_official | 205:c41fc65bcfb4 | 950 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_TXBR); |
| mbed_official | 205:c41fc65bcfb4 | 951 | hcec->Instance->TXDR = *hcec->pTxBuffPtr++; |
| mbed_official | 205:c41fc65bcfb4 | 952 | hcec->TxXferCount--; |
| mbed_official | 205:c41fc65bcfb4 | 953 | |
| mbed_official | 205:c41fc65bcfb4 | 954 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 955 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 956 | |
| mbed_official | 205:c41fc65bcfb4 | 957 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 958 | } |
| mbed_official | 205:c41fc65bcfb4 | 959 | } |
| mbed_official | 205:c41fc65bcfb4 | 960 | else |
| mbed_official | 205:c41fc65bcfb4 | 961 | { |
| mbed_official | 205:c41fc65bcfb4 | 962 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 963 | } |
| mbed_official | 205:c41fc65bcfb4 | 964 | } |
| mbed_official | 205:c41fc65bcfb4 | 965 | |
| mbed_official | 205:c41fc65bcfb4 | 966 | |
| mbed_official | 205:c41fc65bcfb4 | 967 | /** |
| mbed_official | 205:c41fc65bcfb4 | 968 | * @brief Receive data in interrupt mode. |
| mbed_official | 205:c41fc65bcfb4 | 969 | * @param hcec: CEC handle. |
| mbed_official | 205:c41fc65bcfb4 | 970 | * Function called under interruption only, once |
| mbed_official | 205:c41fc65bcfb4 | 971 | * interruptions have been enabled by HAL_CEC_Receive_IT() |
| mbed_official | 205:c41fc65bcfb4 | 972 | * @retval HAL status |
| mbed_official | 205:c41fc65bcfb4 | 973 | */ |
| mbed_official | 205:c41fc65bcfb4 | 974 | static HAL_StatusTypeDef CEC_Receive_IT(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 975 | { |
| mbed_official | 205:c41fc65bcfb4 | 976 | uint32_t tempisr; |
| mbed_official | 205:c41fc65bcfb4 | 977 | |
| mbed_official | 205:c41fc65bcfb4 | 978 | /* Three different conditions are tested to carry out the RX IT processing: |
| mbed_official | 205:c41fc65bcfb4 | 979 | * - the IP is in reception stand-by (the IP state is HAL_CEC_STATE_STANDBY_RX) and |
| mbed_official | 205:c41fc65bcfb4 | 980 | * the reception of the first byte is starting |
| mbed_official | 205:c41fc65bcfb4 | 981 | * - a message reception is already on-going (the IP state is HAL_CEC_STATE_BUSY_RX) |
| mbed_official | 205:c41fc65bcfb4 | 982 | * and a new byte is being received |
| mbed_official | 205:c41fc65bcfb4 | 983 | * - a transmission has just been started (the IP state is HAL_CEC_STATE_BUSY_TX) |
| mbed_official | 205:c41fc65bcfb4 | 984 | * but has been interrupted by a new message reception or discarded due to |
| mbed_official | 205:c41fc65bcfb4 | 985 | * arbitration loss: the reception of the first or higher priority message |
| mbed_official | 205:c41fc65bcfb4 | 986 | * (the arbitration winner) is starting */ |
| mbed_official | 205:c41fc65bcfb4 | 987 | if ((hcec->State == HAL_CEC_STATE_STANDBY_RX) |
| mbed_official | 205:c41fc65bcfb4 | 988 | || (hcec->State == HAL_CEC_STATE_BUSY_RX) |
| mbed_official | 205:c41fc65bcfb4 | 989 | || (hcec->State == HAL_CEC_STATE_BUSY_TX)) |
| mbed_official | 205:c41fc65bcfb4 | 990 | { |
| mbed_official | 205:c41fc65bcfb4 | 991 | /* reception is starting */ |
| mbed_official | 205:c41fc65bcfb4 | 992 | hcec->State = HAL_CEC_STATE_BUSY_RX; |
| mbed_official | 205:c41fc65bcfb4 | 993 | tempisr = (uint32_t) (hcec->Instance->ISR); |
| mbed_official | 205:c41fc65bcfb4 | 994 | if ((tempisr & CEC_ISR_RXBR) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 995 | { |
| mbed_official | 205:c41fc65bcfb4 | 996 | /* Process Locked */ |
| mbed_official | 205:c41fc65bcfb4 | 997 | __HAL_LOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 998 | /* read received byte */ |
| mbed_official | 205:c41fc65bcfb4 | 999 | *hcec->pRxBuffPtr++ = hcec->Instance->RXDR; |
| mbed_official | 205:c41fc65bcfb4 | 1000 | /* if last byte has been received */ |
| mbed_official | 205:c41fc65bcfb4 | 1001 | if ((tempisr & CEC_ISR_RXEND) != 0) |
| mbed_official | 205:c41fc65bcfb4 | 1002 | { |
| mbed_official | 205:c41fc65bcfb4 | 1003 | /* clear IT */ |
| mbed_official | 205:c41fc65bcfb4 | 1004 | __HAL_CEC_CLEAR_FLAG(hcec,CEC_ISR_RXBR|CEC_ISR_RXEND); |
| mbed_official | 205:c41fc65bcfb4 | 1005 | /* RX interrupts are not disabled at this point. |
| mbed_official | 205:c41fc65bcfb4 | 1006 | * Indeed, to disable the IT, the IP must be disabled first |
| mbed_official | 205:c41fc65bcfb4 | 1007 | * which resets the TXSOM flag. In case of arbitration loss, |
| mbed_official | 205:c41fc65bcfb4 | 1008 | * this leads to a transmission abort. |
| mbed_official | 205:c41fc65bcfb4 | 1009 | * Therefore, RX interruptions disabling if so required, |
| mbed_official | 205:c41fc65bcfb4 | 1010 | * is done in HAL_CEC_RxCpltCallback */ |
| mbed_official | 205:c41fc65bcfb4 | 1011 | |
| mbed_official | 205:c41fc65bcfb4 | 1012 | /* IP state is moved to READY. |
| mbed_official | 205:c41fc65bcfb4 | 1013 | * If the IP must remain in standby mode to listen |
| mbed_official | 205:c41fc65bcfb4 | 1014 | * any new message, it is up to HAL_CEC_RxCpltCallback |
| mbed_official | 205:c41fc65bcfb4 | 1015 | * to move it again to HAL_CEC_STATE_STANDBY_RX */ |
| mbed_official | 205:c41fc65bcfb4 | 1016 | hcec->State = HAL_CEC_STATE_READY; |
| mbed_official | 205:c41fc65bcfb4 | 1017 | |
| mbed_official | 205:c41fc65bcfb4 | 1018 | /* Call the Process Unlocked before calling the Rx call back API */ |
| mbed_official | 205:c41fc65bcfb4 | 1019 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 1020 | HAL_CEC_RxCpltCallback(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 1021 | |
| mbed_official | 205:c41fc65bcfb4 | 1022 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 1023 | } |
| mbed_official | 205:c41fc65bcfb4 | 1024 | __HAL_CEC_CLEAR_FLAG(hcec, CEC_ISR_RXBR); |
| mbed_official | 205:c41fc65bcfb4 | 1025 | |
| mbed_official | 205:c41fc65bcfb4 | 1026 | hcec->RxXferSize++; |
| mbed_official | 205:c41fc65bcfb4 | 1027 | /* Process Unlocked */ |
| mbed_official | 205:c41fc65bcfb4 | 1028 | __HAL_UNLOCK(hcec); |
| mbed_official | 205:c41fc65bcfb4 | 1029 | |
| mbed_official | 205:c41fc65bcfb4 | 1030 | return HAL_OK; |
| mbed_official | 205:c41fc65bcfb4 | 1031 | } |
| mbed_official | 205:c41fc65bcfb4 | 1032 | else |
| mbed_official | 205:c41fc65bcfb4 | 1033 | { |
| mbed_official | 205:c41fc65bcfb4 | 1034 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 1035 | } |
| mbed_official | 205:c41fc65bcfb4 | 1036 | } |
| mbed_official | 205:c41fc65bcfb4 | 1037 | else |
| mbed_official | 205:c41fc65bcfb4 | 1038 | { |
| mbed_official | 205:c41fc65bcfb4 | 1039 | return HAL_BUSY; |
| mbed_official | 205:c41fc65bcfb4 | 1040 | } |
| mbed_official | 205:c41fc65bcfb4 | 1041 | } |
| mbed_official | 205:c41fc65bcfb4 | 1042 | |
| mbed_official | 205:c41fc65bcfb4 | 1043 | |
| mbed_official | 205:c41fc65bcfb4 | 1044 | |
| mbed_official | 205:c41fc65bcfb4 | 1045 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1046 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 1047 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1048 | |
| mbed_official | 205:c41fc65bcfb4 | 1049 | /** @defgroup HAL_CEC_Group3 Peripheral Control function |
| mbed_official | 205:c41fc65bcfb4 | 1050 | * @brief CEC control functions |
| mbed_official | 205:c41fc65bcfb4 | 1051 | * |
| mbed_official | 205:c41fc65bcfb4 | 1052 | @verbatim |
| mbed_official | 205:c41fc65bcfb4 | 1053 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 1054 | ##### Peripheral Control function ##### |
| mbed_official | 205:c41fc65bcfb4 | 1055 | =============================================================================== |
| mbed_official | 205:c41fc65bcfb4 | 1056 | [..] |
| mbed_official | 205:c41fc65bcfb4 | 1057 | This subsection provides a set of functions allowing to control the CEC. |
| mbed_official | 205:c41fc65bcfb4 | 1058 | (+) HAL_CEC_GetState() API can be helpful to check in run-time the state of the CEC peripheral. |
| mbed_official | 205:c41fc65bcfb4 | 1059 | @endverbatim |
| mbed_official | 205:c41fc65bcfb4 | 1060 | * @{ |
| mbed_official | 205:c41fc65bcfb4 | 1061 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1062 | |
| mbed_official | 205:c41fc65bcfb4 | 1063 | |
| mbed_official | 205:c41fc65bcfb4 | 1064 | |
| mbed_official | 205:c41fc65bcfb4 | 1065 | |
| mbed_official | 205:c41fc65bcfb4 | 1066 | |
| mbed_official | 205:c41fc65bcfb4 | 1067 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1068 | * @brief return the CEC state |
| mbed_official | 205:c41fc65bcfb4 | 1069 | * @param hcec: CEC handle |
| mbed_official | 205:c41fc65bcfb4 | 1070 | * @retval HAL state |
| mbed_official | 205:c41fc65bcfb4 | 1071 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1072 | HAL_CEC_StateTypeDef HAL_CEC_GetState(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 1073 | { |
| mbed_official | 205:c41fc65bcfb4 | 1074 | return hcec->State; |
| mbed_official | 205:c41fc65bcfb4 | 1075 | } |
| mbed_official | 205:c41fc65bcfb4 | 1076 | |
| mbed_official | 205:c41fc65bcfb4 | 1077 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1078 | * @brief Return the CEC error code |
| mbed_official | 205:c41fc65bcfb4 | 1079 | * @param hcec : pointer to a CEC_HandleTypeDef structure that contains |
| mbed_official | 205:c41fc65bcfb4 | 1080 | * the configuration information for the specified CEC. |
| mbed_official | 205:c41fc65bcfb4 | 1081 | * @retval CEC Error Code |
| mbed_official | 205:c41fc65bcfb4 | 1082 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1083 | uint32_t HAL_CEC_GetError(CEC_HandleTypeDef *hcec) |
| mbed_official | 205:c41fc65bcfb4 | 1084 | { |
| mbed_official | 205:c41fc65bcfb4 | 1085 | return hcec->ErrorCode; |
| mbed_official | 205:c41fc65bcfb4 | 1086 | } |
| mbed_official | 205:c41fc65bcfb4 | 1087 | |
| mbed_official | 205:c41fc65bcfb4 | 1088 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1089 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 1090 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1091 | |
| mbed_official | 205:c41fc65bcfb4 | 1092 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1093 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 1094 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1095 | |
| mbed_official | 205:c41fc65bcfb4 | 1096 | #endif /* defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F051x8) || defined(STM32F058xx) || */ |
| mbed_official | 205:c41fc65bcfb4 | 1097 | /* defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)*/ |
| mbed_official | 205:c41fc65bcfb4 | 1098 | |
| mbed_official | 205:c41fc65bcfb4 | 1099 | #endif /* HAL_CEC_MODULE_ENABLED */ |
| mbed_official | 205:c41fc65bcfb4 | 1100 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1101 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 1102 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1103 | |
| mbed_official | 205:c41fc65bcfb4 | 1104 | /** |
| mbed_official | 205:c41fc65bcfb4 | 1105 | * @} |
| mbed_official | 205:c41fc65bcfb4 | 1106 | */ |
| mbed_official | 205:c41fc65bcfb4 | 1107 | |
| mbed_official | 205:c41fc65bcfb4 | 1108 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |