From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 20 Dec 2020 15:18:02 +0100 Subject: Submodule-cache WIP --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c | 6501 -------------------- 1 file changed, 6501 deletions(-) delete mode 100644 fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c (limited to 'fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c') diff --git a/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c b/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c deleted file mode 100644 index 7c2bf82..0000000 --- a/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c +++ /dev/null @@ -1,6501 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_hal_i2c.c - * @author MCD Application Team - * @brief I2C HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Inter Integrated Circuit (I2C) peripheral: - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral State and Errors functions - * - @verbatim - ============================================================================== - ##### How to use this driver ##### - ============================================================================== - [..] - The I2C HAL driver can be used as follows: - - (#) Declare a I2C_HandleTypeDef handle structure, for example: - I2C_HandleTypeDef hi2c; - - (#)Initialize the I2C low level resources by implementing the @ref HAL_I2C_MspInit() API: - (##) Enable the I2Cx interface clock - (##) I2C pins configuration - (+++) Enable the clock for the I2C GPIOs - (+++) Configure I2C pins as alternate function open-drain - (##) NVIC configuration if you need to use interrupt process - (+++) Configure the I2Cx interrupt priority - (+++) Enable the NVIC I2C IRQ Channel - (##) DMA Configuration if you need to use DMA process - (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive channel - (+++) Enable the DMAx interface clock using - (+++) Configure the DMA handle parameters - (+++) Configure the DMA Tx or Rx channel - (+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle - (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on - the DMA Tx or Rx channel - - (#) Configure the Communication Clock Timing, Own Address1, Master Addressing mode, Dual Addressing mode, - Own Address2, Own Address2 Mask, General call and Nostretch mode in the hi2c Init structure. - - (#) Initialize the I2C registers by calling the @ref HAL_I2C_Init(), configures also the low level Hardware - (GPIO, CLOCK, NVIC...etc) by calling the customized @ref HAL_I2C_MspInit(&hi2c) API. - - (#) To check if target device is ready for communication, use the function @ref HAL_I2C_IsDeviceReady() - - (#) For I2C IO and IO MEM operations, three operation modes are available within this driver : - - *** Polling mode IO operation *** - ================================= - [..] - (+) Transmit in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Transmit() - (+) Receive in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Receive() - (+) Transmit in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Transmit() - (+) Receive in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Receive() - - *** Polling mode IO MEM operation *** - ===================================== - [..] - (+) Write an amount of data in blocking mode to a specific memory address using @ref HAL_I2C_Mem_Write() - (+) Read an amount of data in blocking mode from a specific memory address using @ref HAL_I2C_Mem_Read() - - - *** Interrupt mode IO operation *** - =================================== - [..] - (+) Transmit in master mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Transmit_IT() - (+) At transmission end of transfer, @ref HAL_I2C_MasterTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterTxCpltCallback() - (+) Receive in master mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Receive_IT() - (+) At reception end of transfer, @ref HAL_I2C_MasterRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterRxCpltCallback() - (+) Transmit in slave mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Transmit_IT() - (+) At transmission end of transfer, @ref HAL_I2C_SlaveTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveTxCpltCallback() - (+) Receive in slave mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Receive_IT() - (+) At reception end of transfer, @ref HAL_I2C_SlaveRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveRxCpltCallback() - (+) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback() - (+) Abort a master I2C process communication with Interrupt using @ref HAL_I2C_Master_Abort_IT() - (+) End of abort process, @ref HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_AbortCpltCallback() - (+) Discard a slave I2C process communication using @ref __HAL_I2C_GENERATE_NACK() macro. - This action will inform Master to generate a Stop condition to discard the communication. - - - *** Interrupt mode or DMA mode IO sequential operation *** - ========================================================== - [..] - (@) These interfaces allow to manage a sequential transfer with a repeated start condition - when a direction change during transfer - [..] - (+) A specific option field manage the different steps of a sequential transfer - (+) Option field values are defined through @ref I2C_XFEROPTIONS and are listed below: - (++) I2C_FIRST_AND_LAST_FRAME: No sequential usage, functionnal is same as associated interfaces in no sequential mode - (++) I2C_FIRST_FRAME: Sequential usage, this option allow to manage a sequence with start condition, address - and data to transfer without a final stop condition - (++) I2C_FIRST_AND_NEXT_FRAME: Sequential usage (Master only), this option allow to manage a sequence with start condition, address - and data to transfer without a final stop condition, an then permit a call the same master sequential interface - several times (like @ref HAL_I2C_Master_Seq_Transmit_IT() then @ref HAL_I2C_Master_Seq_Transmit_IT() - or @ref HAL_I2C_Master_Seq_Transmit_DMA() then @ref HAL_I2C_Master_Seq_Transmit_DMA()) - (++) I2C_NEXT_FRAME: Sequential usage, this option allow to manage a sequence with a restart condition, address - and with new data to transfer if the direction change or manage only the new data to transfer - if no direction change and without a final stop condition in both cases - (++) I2C_LAST_FRAME: Sequential usage, this option allow to manage a sequance with a restart condition, address - and with new data to transfer if the direction change or manage only the new data to transfer - if no direction change and with a final stop condition in both cases - (++) I2C_LAST_FRAME_NO_STOP: Sequential usage (Master only), this option allow to manage a restart condition after several call of the same master sequential - interface several times (link with option I2C_FIRST_AND_NEXT_FRAME). - Usage can, transfer several bytes one by one using HAL_I2C_Master_Seq_Transmit_IT(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME) - or HAL_I2C_Master_Seq_Receive_IT(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME) - or HAL_I2C_Master_Seq_Transmit_DMA(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME) - or HAL_I2C_Master_Seq_Receive_DMA(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME). - Then usage of this option I2C_LAST_FRAME_NO_STOP at the last Transmit or Receive sequence permit to call the oposite interface Receive or Transmit - without stopping the communication and so generate a restart condition. - (++) I2C_OTHER_FRAME: Sequential usage (Master only), this option allow to manage a restart condition after each call of the same master sequential - interface. - Usage can, transfer several bytes one by one with a restart with slave address between each bytes using HAL_I2C_Master_Seq_Transmit_IT(option I2C_FIRST_FRAME then I2C_OTHER_FRAME) - or HAL_I2C_Master_Seq_Receive_IT(option I2C_FIRST_FRAME then I2C_OTHER_FRAME) - or HAL_I2C_Master_Seq_Transmit_DMA(option I2C_FIRST_FRAME then I2C_OTHER_FRAME) - or HAL_I2C_Master_Seq_Receive_DMA(option I2C_FIRST_FRAME then I2C_OTHER_FRAME). - Then usage of this option I2C_OTHER_AND_LAST_FRAME at the last frame to help automatic generation of STOP condition. - - (+) Differents sequential I2C interfaces are listed below: - (++) Sequential transmit in master I2C mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Seq_Transmit_IT() - or using @ref HAL_I2C_Master_Seq_Transmit_DMA() - (+++) At transmission end of current frame transfer, @ref HAL_I2C_MasterTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterTxCpltCallback() - (++) Sequential receive in master I2C mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Seq_Receive_IT() - or using @ref HAL_I2C_Master_Seq_Receive_DMA() - (+++) At reception end of current frame transfer, @ref HAL_I2C_MasterRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterRxCpltCallback() - (++) Abort a master IT or DMA I2C process communication with Interrupt using @ref HAL_I2C_Master_Abort_IT() - (+++) End of abort process, @ref HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_AbortCpltCallback() - (++) Enable/disable the Address listen mode in slave I2C mode using @ref HAL_I2C_EnableListen_IT() @ref HAL_I2C_DisableListen_IT() - (+++) When address slave I2C match, @ref HAL_I2C_AddrCallback() is executed and user can - add his own code to check the Address Match Code and the transmission direction request by master (Write/Read). - (+++) At Listen mode end @ref HAL_I2C_ListenCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ListenCpltCallback() - (++) Sequential transmit in slave I2C mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Seq_Transmit_IT() - or using @ref HAL_I2C_Slave_Seq_Transmit_DMA() - (+++) At transmission end of current frame transfer, @ref HAL_I2C_SlaveTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveTxCpltCallback() - (++) Sequential receive in slave I2C mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Seq_Receive_IT() - or using @ref HAL_I2C_Slave_Seq_Receive_DMA() - (+++) At reception end of current frame transfer, @ref HAL_I2C_SlaveRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveRxCpltCallback() - (++) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback() - (++) Discard a slave I2C process communication using @ref __HAL_I2C_GENERATE_NACK() macro. - This action will inform Master to generate a Stop condition to discard the communication. - - *** Interrupt mode IO MEM operation *** - ======================================= - [..] - (+) Write an amount of data in non-blocking mode with Interrupt to a specific memory address using - @ref HAL_I2C_Mem_Write_IT() - (+) At Memory end of write transfer, @ref HAL_I2C_MemTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MemTxCpltCallback() - (+) Read an amount of data in non-blocking mode with Interrupt from a specific memory address using - @ref HAL_I2C_Mem_Read_IT() - (+) At Memory end of read transfer, @ref HAL_I2C_MemRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MemRxCpltCallback() - (+) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback() - - *** DMA mode IO operation *** - ============================== - [..] - (+) Transmit in master mode an amount of data in non-blocking mode (DMA) using - @ref HAL_I2C_Master_Transmit_DMA() - (+) At transmission end of transfer, @ref HAL_I2C_MasterTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterTxCpltCallback() - (+) Receive in master mode an amount of data in non-blocking mode (DMA) using - @ref HAL_I2C_Master_Receive_DMA() - (+) At reception end of transfer, @ref HAL_I2C_MasterRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MasterRxCpltCallback() - (+) Transmit in slave mode an amount of data in non-blocking mode (DMA) using - @ref HAL_I2C_Slave_Transmit_DMA() - (+) At transmission end of transfer, @ref HAL_I2C_SlaveTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveTxCpltCallback() - (+) Receive in slave mode an amount of data in non-blocking mode (DMA) using - @ref HAL_I2C_Slave_Receive_DMA() - (+) At reception end of transfer, @ref HAL_I2C_SlaveRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_SlaveRxCpltCallback() - (+) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback() - (+) Abort a master I2C process communication with Interrupt using @ref HAL_I2C_Master_Abort_IT() - (+) End of abort process, @ref HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_AbortCpltCallback() - (+) Discard a slave I2C process communication using @ref __HAL_I2C_GENERATE_NACK() macro. - This action will inform Master to generate a Stop condition to discard the communication. - - *** DMA mode IO MEM operation *** - ================================= - [..] - (+) Write an amount of data in non-blocking mode with DMA to a specific memory address using - @ref HAL_I2C_Mem_Write_DMA() - (+) At Memory end of write transfer, @ref HAL_I2C_MemTxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MemTxCpltCallback() - (+) Read an amount of data in non-blocking mode with DMA from a specific memory address using - @ref HAL_I2C_Mem_Read_DMA() - (+) At Memory end of read transfer, @ref HAL_I2C_MemRxCpltCallback() is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_MemRxCpltCallback() - (+) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback() - - - *** I2C HAL driver macros list *** - ================================== - [..] - Below the list of most used macros in I2C HAL driver. - - (+) @ref __HAL_I2C_ENABLE: Enable the I2C peripheral - (+) @ref __HAL_I2C_DISABLE: Disable the I2C peripheral - (+) @ref __HAL_I2C_GENERATE_NACK: Generate a Non-Acknowledge I2C peripheral in Slave mode - (+) @ref __HAL_I2C_GET_FLAG: Check whether the specified I2C flag is set or not - (+) @ref __HAL_I2C_CLEAR_FLAG: Clear the specified I2C pending flag - (+) @ref __HAL_I2C_ENABLE_IT: Enable the specified I2C interrupt - (+) @ref __HAL_I2C_DISABLE_IT: Disable the specified I2C interrupt - - *** Callback registration *** - ============================================= - [..] - The compilation flag USE_HAL_I2C_REGISTER_CALLBACKS when set to 1 - allows the user to configure dynamically the driver callbacks. - Use Functions @ref HAL_I2C_RegisterCallback() or @ref HAL_I2C_RegisterAddrCallback() - to register an interrupt callback. - [..] - Function @ref HAL_I2C_RegisterCallback() allows to register following callbacks: - (+) MasterTxCpltCallback : callback for Master transmission end of transfer. - (+) MasterRxCpltCallback : callback for Master reception end of transfer. - (+) SlaveTxCpltCallback : callback for Slave transmission end of transfer. - (+) SlaveRxCpltCallback : callback for Slave reception end of transfer. - (+) ListenCpltCallback : callback for end of listen mode. - (+) MemTxCpltCallback : callback for Memory transmission end of transfer. - (+) MemRxCpltCallback : callback for Memory reception end of transfer. - (+) ErrorCallback : callback for error detection. - (+) AbortCpltCallback : callback for abort completion process. - (+) MspInitCallback : callback for Msp Init. - (+) MspDeInitCallback : callback for Msp DeInit. - This function takes as parameters the HAL peripheral handle, the Callback ID - and a pointer to the user callback function. - [..] - For specific callback AddrCallback use dedicated register callbacks : @ref HAL_I2C_RegisterAddrCallback(). - [..] - Use function @ref HAL_I2C_UnRegisterCallback to reset a callback to the default - weak function. - @ref HAL_I2C_UnRegisterCallback takes as parameters the HAL peripheral handle, - and the Callback ID. - This function allows to reset following callbacks: - (+) MasterTxCpltCallback : callback for Master transmission end of transfer. - (+) MasterRxCpltCallback : callback for Master reception end of transfer. - (+) SlaveTxCpltCallback : callback for Slave transmission end of transfer. - (+) SlaveRxCpltCallback : callback for Slave reception end of transfer. - (+) ListenCpltCallback : callback for end of listen mode. - (+) MemTxCpltCallback : callback for Memory transmission end of transfer. - (+) MemRxCpltCallback : callback for Memory reception end of transfer. - (+) ErrorCallback : callback for error detection. - (+) AbortCpltCallback : callback for abort completion process. - (+) MspInitCallback : callback for Msp Init. - (+) MspDeInitCallback : callback for Msp DeInit. - [..] - For callback AddrCallback use dedicated register callbacks : @ref HAL_I2C_UnRegisterAddrCallback(). - [..] - By default, after the @ref HAL_I2C_Init() and when the state is @ref HAL_I2C_STATE_RESET - all callbacks are set to the corresponding weak functions: - examples @ref HAL_I2C_MasterTxCpltCallback(), @ref HAL_I2C_MasterRxCpltCallback(). - Exception done for MspInit and MspDeInit functions that are - reset to the legacy weak functions in the @ref HAL_I2C_Init()/ @ref HAL_I2C_DeInit() only when - these callbacks are null (not registered beforehand). - If MspInit or MspDeInit are not null, the @ref HAL_I2C_Init()/ @ref HAL_I2C_DeInit() - keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state. - [..] - Callbacks can be registered/unregistered in @ref HAL_I2C_STATE_READY state only. - Exception done MspInit/MspDeInit functions that can be registered/unregistered - in @ref HAL_I2C_STATE_READY or @ref HAL_I2C_STATE_RESET state, - thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit. - Then, the user first registers the MspInit/MspDeInit user callbacks - using @ref HAL_I2C_RegisterCallback() before calling @ref HAL_I2C_DeInit() - or @ref HAL_I2C_Init() function. - [..] - When the compilation flag USE_HAL_I2C_REGISTER_CALLBACKS is set to 0 or - not defined, the callback registration feature is not available and all callbacks - are set to the corresponding weak functions. - - [..] - (@) You can refer to the I2C HAL driver header file for more useful macros - - @endverbatim - ****************************************************************************** - * @attention - * - *

© Copyright (c) 2016 STMicroelectronics. - * All rights reserved.

- * - * This software component is licensed by ST under BSD 3-Clause license, - * the "License"; You may not use this file except in compliance with the - * License. You may obtain a copy of the License at: - * opensource.org/licenses/BSD-3-Clause - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f0xx_hal.h" - -/** @addtogroup STM32F0xx_HAL_Driver - * @{ - */ - -/** @defgroup I2C I2C - * @brief I2C HAL module driver - * @{ - */ - -#ifdef HAL_I2C_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ - -/** @defgroup I2C_Private_Define I2C Private Define - * @{ - */ -#define TIMING_CLEAR_MASK (0xF0FFFFFFU) /*!< I2C TIMING clear register Mask */ -#define I2C_TIMEOUT_ADDR (10000U) /*!< 10 s */ -#define I2C_TIMEOUT_BUSY (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_DIR (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_RXNE (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_STOPF (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_TC (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_TCR (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_TXIS (25U) /*!< 25 ms */ -#define I2C_TIMEOUT_FLAG (25U) /*!< 25 ms */ - -#define MAX_NBYTE_SIZE 255U -#define SlaveAddr_SHIFT 7U -#define SlaveAddr_MSK 0x06U - -/* Private define for @ref PreviousState usage */ -#define I2C_STATE_MSK ((uint32_t)((uint32_t)((uint32_t)HAL_I2C_STATE_BUSY_TX | (uint32_t)HAL_I2C_STATE_BUSY_RX) & (uint32_t)(~((uint32_t)HAL_I2C_STATE_READY)))) /*!< Mask State define, keep only RX and TX bits */ -#define I2C_STATE_NONE ((uint32_t)(HAL_I2C_MODE_NONE)) /*!< Default Value */ -#define I2C_STATE_MASTER_BUSY_TX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_MASTER)) /*!< Master Busy TX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_MASTER_BUSY_RX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_MASTER)) /*!< Master Busy RX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_SLAVE_BUSY_TX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_SLAVE)) /*!< Slave Busy TX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_SLAVE_BUSY_RX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_SLAVE)) /*!< Slave Busy RX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_MEM_BUSY_TX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_MEM)) /*!< Memory Busy TX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_MEM_BUSY_RX ((uint32_t)(((uint32_t)HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | (uint32_t)HAL_I2C_MODE_MEM)) /*!< Memory Busy RX, combinaison of State LSB and Mode enum */ - - -/* Private define to centralize the enable/disable of Interrupts */ -#define I2C_XFER_TX_IT (0x00000001U) -#define I2C_XFER_RX_IT (0x00000002U) -#define I2C_XFER_LISTEN_IT (0x00000004U) - -#define I2C_XFER_ERROR_IT (0x00000011U) -#define I2C_XFER_CPLT_IT (0x00000012U) -#define I2C_XFER_RELOAD_IT (0x00000012U) - -/* Private define Sequential Transfer Options default/reset value */ -#define I2C_NO_OPTION_FRAME (0xFFFF0000U) -/** - * @} - */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ - -/** @defgroup I2C_Private_Functions I2C Private Functions - * @{ - */ -/* Private functions to handle DMA transfer */ -static void I2C_DMAMasterTransmitCplt(DMA_HandleTypeDef *hdma); -static void I2C_DMAMasterReceiveCplt(DMA_HandleTypeDef *hdma); -static void I2C_DMASlaveTransmitCplt(DMA_HandleTypeDef *hdma); -static void I2C_DMASlaveReceiveCplt(DMA_HandleTypeDef *hdma); -static void I2C_DMAError(DMA_HandleTypeDef *hdma); -static void I2C_DMAAbort(DMA_HandleTypeDef *hdma); - -/* Private functions to handle IT transfer */ -static void I2C_ITAddrCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags); -static void I2C_ITMasterSeqCplt(I2C_HandleTypeDef *hi2c); -static void I2C_ITSlaveSeqCplt(I2C_HandleTypeDef *hi2c); -static void I2C_ITMasterCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags); -static void I2C_ITSlaveCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags); -static void I2C_ITListenCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags); -static void I2C_ITError(I2C_HandleTypeDef *hi2c, uint32_t ErrorCode); - -/* Private functions to handle IT transfer */ -static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); - -/* Private functions for I2C transfer IRQ handler */ -static HAL_StatusTypeDef I2C_Master_ISR_IT(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources); -static HAL_StatusTypeDef I2C_Slave_ISR_IT(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources); -static HAL_StatusTypeDef I2C_Master_ISR_DMA(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources); -static HAL_StatusTypeDef I2C_Slave_ISR_DMA(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources); - -/* Private functions to handle flags during polling transfer */ -static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnTXISFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); - -/* Private functions to centralize the enable/disable of Interrupts */ -static void I2C_Enable_IRQ(I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest); -static void I2C_Disable_IRQ(I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest); - -/* Private function to flush TXDR register */ -static void I2C_Flush_TXDR(I2C_HandleTypeDef *hi2c); - -/* Private function to handle start, restart or stop a transfer */ -static void I2C_TransferConfig(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request); - -/* Private function to Convert Specific options */ -static void I2C_ConvertOtherXferOptions(I2C_HandleTypeDef *hi2c); -/** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ - -/** @defgroup I2C_Exported_Functions I2C Exported Functions - * @{ - */ - -/** @defgroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * -@verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] This subsection provides a set of functions allowing to initialize and - deinitialize the I2Cx peripheral: - - (+) User must Implement HAL_I2C_MspInit() function in which he configures - all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). - - (+) Call the function HAL_I2C_Init() to configure the selected device with - the selected configuration: - (++) Clock Timing - (++) Own Address 1 - (++) Addressing mode (Master, Slave) - (++) Dual Addressing mode - (++) Own Address 2 - (++) Own Address 2 Mask - (++) General call mode - (++) Nostretch mode - - (+) Call the function HAL_I2C_DeInit() to restore the default configuration - of the selected I2Cx peripheral. - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the I2C according to the specified parameters - * in the I2C_InitTypeDef and initialize the associated handle. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c) -{ - /* Check the I2C handle allocation */ - if (hi2c == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); - assert_param(IS_I2C_OWN_ADDRESS1(hi2c->Init.OwnAddress1)); - assert_param(IS_I2C_ADDRESSING_MODE(hi2c->Init.AddressingMode)); - assert_param(IS_I2C_DUAL_ADDRESS(hi2c->Init.DualAddressMode)); - assert_param(IS_I2C_OWN_ADDRESS2(hi2c->Init.OwnAddress2)); - assert_param(IS_I2C_OWN_ADDRESS2_MASK(hi2c->Init.OwnAddress2Masks)); - assert_param(IS_I2C_GENERAL_CALL(hi2c->Init.GeneralCallMode)); - assert_param(IS_I2C_NO_STRETCH(hi2c->Init.NoStretchMode)); - - if (hi2c->State == HAL_I2C_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - hi2c->Lock = HAL_UNLOCKED; - -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - /* Init the I2C Callback settings */ - hi2c->MasterTxCpltCallback = HAL_I2C_MasterTxCpltCallback; /* Legacy weak MasterTxCpltCallback */ - hi2c->MasterRxCpltCallback = HAL_I2C_MasterRxCpltCallback; /* Legacy weak MasterRxCpltCallback */ - hi2c->SlaveTxCpltCallback = HAL_I2C_SlaveTxCpltCallback; /* Legacy weak SlaveTxCpltCallback */ - hi2c->SlaveRxCpltCallback = HAL_I2C_SlaveRxCpltCallback; /* Legacy weak SlaveRxCpltCallback */ - hi2c->ListenCpltCallback = HAL_I2C_ListenCpltCallback; /* Legacy weak ListenCpltCallback */ - hi2c->MemTxCpltCallback = HAL_I2C_MemTxCpltCallback; /* Legacy weak MemTxCpltCallback */ - hi2c->MemRxCpltCallback = HAL_I2C_MemRxCpltCallback; /* Legacy weak MemRxCpltCallback */ - hi2c->ErrorCallback = HAL_I2C_ErrorCallback; /* Legacy weak ErrorCallback */ - hi2c->AbortCpltCallback = HAL_I2C_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ - hi2c->AddrCallback = HAL_I2C_AddrCallback; /* Legacy weak AddrCallback */ - - if (hi2c->MspInitCallback == NULL) - { - hi2c->MspInitCallback = HAL_I2C_MspInit; /* Legacy weak MspInit */ - } - - /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ - hi2c->MspInitCallback(hi2c); -#else - /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ - HAL_I2C_MspInit(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - - hi2c->State = HAL_I2C_STATE_BUSY; - - /* Disable the selected I2C peripheral */ - __HAL_I2C_DISABLE(hi2c); - - /*---------------------------- I2Cx TIMINGR Configuration ------------------*/ - /* Configure I2Cx: Frequency range */ - hi2c->Instance->TIMINGR = hi2c->Init.Timing & TIMING_CLEAR_MASK; - - /*---------------------------- I2Cx OAR1 Configuration ---------------------*/ - /* Disable Own Address1 before set the Own Address1 configuration */ - hi2c->Instance->OAR1 &= ~I2C_OAR1_OA1EN; - - /* Configure I2Cx: Own Address1 and ack own address1 mode */ - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) - { - hi2c->Instance->OAR1 = (I2C_OAR1_OA1EN | hi2c->Init.OwnAddress1); - } - else /* I2C_ADDRESSINGMODE_10BIT */ - { - hi2c->Instance->OAR1 = (I2C_OAR1_OA1EN | I2C_OAR1_OA1MODE | hi2c->Init.OwnAddress1); - } - - /*---------------------------- I2Cx CR2 Configuration ----------------------*/ - /* Configure I2Cx: Addressing Master mode */ - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_10BIT) - { - hi2c->Instance->CR2 = (I2C_CR2_ADD10); - } - /* Enable the AUTOEND by default, and enable NACK (should be disable only during Slave process */ - hi2c->Instance->CR2 |= (I2C_CR2_AUTOEND | I2C_CR2_NACK); - - /*---------------------------- I2Cx OAR2 Configuration ---------------------*/ - /* Disable Own Address2 before set the Own Address2 configuration */ - hi2c->Instance->OAR2 &= ~I2C_DUALADDRESS_ENABLE; - - /* Configure I2Cx: Dual mode and Own Address2 */ - hi2c->Instance->OAR2 = (hi2c->Init.DualAddressMode | hi2c->Init.OwnAddress2 | (hi2c->Init.OwnAddress2Masks << 8)); - - /*---------------------------- I2Cx CR1 Configuration ----------------------*/ - /* Configure I2Cx: Generalcall and NoStretch mode */ - hi2c->Instance->CR1 = (hi2c->Init.GeneralCallMode | hi2c->Init.NoStretchMode); - - /* Enable the selected I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - - return HAL_OK; -} - -/** - * @brief DeInitialize the I2C peripheral. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c) -{ - /* Check the I2C handle allocation */ - if (hi2c == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); - - hi2c->State = HAL_I2C_STATE_BUSY; - - /* Disable the I2C Peripheral Clock */ - __HAL_I2C_DISABLE(hi2c); - -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - if (hi2c->MspDeInitCallback == NULL) - { - hi2c->MspDeInitCallback = HAL_I2C_MspDeInit; /* Legacy weak MspDeInit */ - } - - /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ - hi2c->MspDeInitCallback(hi2c); -#else - /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ - HAL_I2C_MspDeInit(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->State = HAL_I2C_STATE_RESET; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief Initialize the I2C MSP. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MspInit could be implemented in the user file - */ -} - -/** - * @brief DeInitialize the I2C MSP. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MspDeInit could be implemented in the user file - */ -} - -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) -/** - * @brief Register a User I2C Callback - * To be used instead of the weak predefined callback - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param CallbackID ID of the callback to be registered - * This parameter can be one of the following values: - * @arg @ref HAL_I2C_MASTER_TX_COMPLETE_CB_ID Master Tx Transfer completed callback ID - * @arg @ref HAL_I2C_MASTER_RX_COMPLETE_CB_ID Master Rx Transfer completed callback ID - * @arg @ref HAL_I2C_SLAVE_TX_COMPLETE_CB_ID Slave Tx Transfer completed callback ID - * @arg @ref HAL_I2C_SLAVE_RX_COMPLETE_CB_ID Slave Rx Transfer completed callback ID - * @arg @ref HAL_I2C_LISTEN_COMPLETE_CB_ID Listen Complete callback ID - * @arg @ref HAL_I2C_MEM_TX_COMPLETE_CB_ID Memory Tx Transfer callback ID - * @arg @ref HAL_I2C_MEM_RX_COMPLETE_CB_ID Memory Rx Transfer completed callback ID - * @arg @ref HAL_I2C_ERROR_CB_ID Error callback ID - * @arg @ref HAL_I2C_ABORT_CB_ID Abort callback ID - * @arg @ref HAL_I2C_MSPINIT_CB_ID MspInit callback ID - * @arg @ref HAL_I2C_MSPDEINIT_CB_ID MspDeInit callback ID - * @param pCallback pointer to the Callback function - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback) -{ - HAL_StatusTypeDef status = HAL_OK; - - if (pCallback == NULL) - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - return HAL_ERROR; - } - /* Process locked */ - __HAL_LOCK(hi2c); - - if (HAL_I2C_STATE_READY == hi2c->State) - { - switch (CallbackID) - { - case HAL_I2C_MASTER_TX_COMPLETE_CB_ID : - hi2c->MasterTxCpltCallback = pCallback; - break; - - case HAL_I2C_MASTER_RX_COMPLETE_CB_ID : - hi2c->MasterRxCpltCallback = pCallback; - break; - - case HAL_I2C_SLAVE_TX_COMPLETE_CB_ID : - hi2c->SlaveTxCpltCallback = pCallback; - break; - - case HAL_I2C_SLAVE_RX_COMPLETE_CB_ID : - hi2c->SlaveRxCpltCallback = pCallback; - break; - - case HAL_I2C_LISTEN_COMPLETE_CB_ID : - hi2c->ListenCpltCallback = pCallback; - break; - - case HAL_I2C_MEM_TX_COMPLETE_CB_ID : - hi2c->MemTxCpltCallback = pCallback; - break; - - case HAL_I2C_MEM_RX_COMPLETE_CB_ID : - hi2c->MemRxCpltCallback = pCallback; - break; - - case HAL_I2C_ERROR_CB_ID : - hi2c->ErrorCallback = pCallback; - break; - - case HAL_I2C_ABORT_CB_ID : - hi2c->AbortCpltCallback = pCallback; - break; - - case HAL_I2C_MSPINIT_CB_ID : - hi2c->MspInitCallback = pCallback; - break; - - case HAL_I2C_MSPDEINIT_CB_ID : - hi2c->MspDeInitCallback = pCallback; - break; - - default : - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else if (HAL_I2C_STATE_RESET == hi2c->State) - { - switch (CallbackID) - { - case HAL_I2C_MSPINIT_CB_ID : - hi2c->MspInitCallback = pCallback; - break; - - case HAL_I2C_MSPDEINIT_CB_ID : - hi2c->MspDeInitCallback = pCallback; - break; - - default : - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - return status; -} - -/** - * @brief Unregister an I2C Callback - * I2C callback is redirected to the weak predefined callback - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param CallbackID ID of the callback to be unregistered - * This parameter can be one of the following values: - * This parameter can be one of the following values: - * @arg @ref HAL_I2C_MASTER_TX_COMPLETE_CB_ID Master Tx Transfer completed callback ID - * @arg @ref HAL_I2C_MASTER_RX_COMPLETE_CB_ID Master Rx Transfer completed callback ID - * @arg @ref HAL_I2C_SLAVE_TX_COMPLETE_CB_ID Slave Tx Transfer completed callback ID - * @arg @ref HAL_I2C_SLAVE_RX_COMPLETE_CB_ID Slave Rx Transfer completed callback ID - * @arg @ref HAL_I2C_LISTEN_COMPLETE_CB_ID Listen Complete callback ID - * @arg @ref HAL_I2C_MEM_TX_COMPLETE_CB_ID Memory Tx Transfer callback ID - * @arg @ref HAL_I2C_MEM_RX_COMPLETE_CB_ID Memory Rx Transfer completed callback ID - * @arg @ref HAL_I2C_ERROR_CB_ID Error callback ID - * @arg @ref HAL_I2C_ABORT_CB_ID Abort callback ID - * @arg @ref HAL_I2C_MSPINIT_CB_ID MspInit callback ID - * @arg @ref HAL_I2C_MSPDEINIT_CB_ID MspDeInit callback ID - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID) -{ - HAL_StatusTypeDef status = HAL_OK; - - /* Process locked */ - __HAL_LOCK(hi2c); - - if (HAL_I2C_STATE_READY == hi2c->State) - { - switch (CallbackID) - { - case HAL_I2C_MASTER_TX_COMPLETE_CB_ID : - hi2c->MasterTxCpltCallback = HAL_I2C_MasterTxCpltCallback; /* Legacy weak MasterTxCpltCallback */ - break; - - case HAL_I2C_MASTER_RX_COMPLETE_CB_ID : - hi2c->MasterRxCpltCallback = HAL_I2C_MasterRxCpltCallback; /* Legacy weak MasterRxCpltCallback */ - break; - - case HAL_I2C_SLAVE_TX_COMPLETE_CB_ID : - hi2c->SlaveTxCpltCallback = HAL_I2C_SlaveTxCpltCallback; /* Legacy weak SlaveTxCpltCallback */ - break; - - case HAL_I2C_SLAVE_RX_COMPLETE_CB_ID : - hi2c->SlaveRxCpltCallback = HAL_I2C_SlaveRxCpltCallback; /* Legacy weak SlaveRxCpltCallback */ - break; - - case HAL_I2C_LISTEN_COMPLETE_CB_ID : - hi2c->ListenCpltCallback = HAL_I2C_ListenCpltCallback; /* Legacy weak ListenCpltCallback */ - break; - - case HAL_I2C_MEM_TX_COMPLETE_CB_ID : - hi2c->MemTxCpltCallback = HAL_I2C_MemTxCpltCallback; /* Legacy weak MemTxCpltCallback */ - break; - - case HAL_I2C_MEM_RX_COMPLETE_CB_ID : - hi2c->MemRxCpltCallback = HAL_I2C_MemRxCpltCallback; /* Legacy weak MemRxCpltCallback */ - break; - - case HAL_I2C_ERROR_CB_ID : - hi2c->ErrorCallback = HAL_I2C_ErrorCallback; /* Legacy weak ErrorCallback */ - break; - - case HAL_I2C_ABORT_CB_ID : - hi2c->AbortCpltCallback = HAL_I2C_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ - break; - - case HAL_I2C_MSPINIT_CB_ID : - hi2c->MspInitCallback = HAL_I2C_MspInit; /* Legacy weak MspInit */ - break; - - case HAL_I2C_MSPDEINIT_CB_ID : - hi2c->MspDeInitCallback = HAL_I2C_MspDeInit; /* Legacy weak MspDeInit */ - break; - - default : - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else if (HAL_I2C_STATE_RESET == hi2c->State) - { - switch (CallbackID) - { - case HAL_I2C_MSPINIT_CB_ID : - hi2c->MspInitCallback = HAL_I2C_MspInit; /* Legacy weak MspInit */ - break; - - case HAL_I2C_MSPDEINIT_CB_ID : - hi2c->MspDeInitCallback = HAL_I2C_MspDeInit; /* Legacy weak MspDeInit */ - break; - - default : - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - return status; -} - -/** - * @brief Register the Slave Address Match I2C Callback - * To be used instead of the weak HAL_I2C_AddrCallback() predefined callback - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pCallback pointer to the Address Match Callback function - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback) -{ - HAL_StatusTypeDef status = HAL_OK; - - if (pCallback == NULL) - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - return HAL_ERROR; - } - /* Process locked */ - __HAL_LOCK(hi2c); - - if (HAL_I2C_STATE_READY == hi2c->State) - { - hi2c->AddrCallback = pCallback; - } - else - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - return status; -} - -/** - * @brief UnRegister the Slave Address Match I2C Callback - * Info Ready I2C Callback is redirected to the weak HAL_I2C_AddrCallback() predefined callback - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c) -{ - HAL_StatusTypeDef status = HAL_OK; - - /* Process locked */ - __HAL_LOCK(hi2c); - - if (HAL_I2C_STATE_READY == hi2c->State) - { - hi2c->AddrCallback = HAL_I2C_AddrCallback; /* Legacy weak AddrCallback */ - } - else - { - /* Update the error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - return status; -} - -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - -/** - * @} - */ - -/** @defgroup I2C_Exported_Functions_Group2 Input and Output operation functions - * @brief Data transfers functions - * -@verbatim - =============================================================================== - ##### IO operation functions ##### - =============================================================================== - [..] - This subsection provides a set of functions allowing to manage the I2C data - transfers. - - (#) There are two modes of transfer: - (++) Blocking mode : The communication is performed in the polling mode. - The status of all data processing is returned by the same function - after finishing transfer. - (++) No-Blocking mode : The communication is performed using Interrupts - or DMA. These functions return the status of the transfer startup. - The end of the data processing will be indicated through the - dedicated I2C IRQ when using Interrupt mode or the DMA IRQ when - using DMA mode. - - (#) Blocking mode functions are : - (++) HAL_I2C_Master_Transmit() - (++) HAL_I2C_Master_Receive() - (++) HAL_I2C_Slave_Transmit() - (++) HAL_I2C_Slave_Receive() - (++) HAL_I2C_Mem_Write() - (++) HAL_I2C_Mem_Read() - (++) HAL_I2C_IsDeviceReady() - - (#) No-Blocking mode functions with Interrupt are : - (++) HAL_I2C_Master_Transmit_IT() - (++) HAL_I2C_Master_Receive_IT() - (++) HAL_I2C_Slave_Transmit_IT() - (++) HAL_I2C_Slave_Receive_IT() - (++) HAL_I2C_Mem_Write_IT() - (++) HAL_I2C_Mem_Read_IT() - (++) HAL_I2C_Master_Seq_Transmit_IT() - (++) HAL_I2C_Master_Seq_Receive_IT() - (++) HAL_I2C_Slave_Seq_Transmit_IT() - (++) HAL_I2C_Slave_Seq_Receive_IT() - (++) HAL_I2C_EnableListen_IT() - (++) HAL_I2C_DisableListen_IT() - (++) HAL_I2C_Master_Abort_IT() - - (#) No-Blocking mode functions with DMA are : - (++) HAL_I2C_Master_Transmit_DMA() - (++) HAL_I2C_Master_Receive_DMA() - (++) HAL_I2C_Slave_Transmit_DMA() - (++) HAL_I2C_Slave_Receive_DMA() - (++) HAL_I2C_Mem_Write_DMA() - (++) HAL_I2C_Mem_Read_DMA() - (++) HAL_I2C_Master_Seq_Transmit_DMA() - (++) HAL_I2C_Master_Seq_Receive_DMA() - (++) HAL_I2C_Slave_Seq_Transmit_DMA() - (++) HAL_I2C_Slave_Seq_Receive_DMA() - - (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: - (++) HAL_I2C_MasterTxCpltCallback() - (++) HAL_I2C_MasterRxCpltCallback() - (++) HAL_I2C_SlaveTxCpltCallback() - (++) HAL_I2C_SlaveRxCpltCallback() - (++) HAL_I2C_MemTxCpltCallback() - (++) HAL_I2C_MemRxCpltCallback() - (++) HAL_I2C_AddrCallback() - (++) HAL_I2C_ListenCpltCallback() - (++) HAL_I2C_ErrorCallback() - (++) HAL_I2C_AbortCpltCallback() - -@endverbatim - * @{ - */ - -/** - * @brief Transmits in master mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_GENERATE_START_WRITE); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_WRITE); - } - - while (hi2c->XferCount > 0U) - { - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - /* Write data to TXDR */ - hi2c->Instance->TXDR = *hi2c->pBuffPtr; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - hi2c->XferSize--; - - if ((hi2c->XferCount != 0U) && (hi2c->XferSize == 0U)) - { - /* Wait until TCR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TCR, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - } - } - - /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */ - /* Wait until STOPF flag is set */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receives in master mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_GENERATE_START_READ); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_READ); - } - - while (hi2c->XferCount > 0U) - { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferSize--; - hi2c->XferCount--; - - if ((hi2c->XferCount != 0U) && (hi2c->XferSize == 0U)) - { - /* Wait until TCR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TCR, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - } - } - - /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */ - /* Wait until STOPF flag is set */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmits in slave mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - - /* If 10bit addressing mode is selected */ - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_10BIT) - { - /* Wait until ADDR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - } - - /* Wait until DIR flag is set Transmitter mode */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_DIR, RESET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - while (hi2c->XferCount > 0U) - { - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Write data to TXDR */ - hi2c->Instance->TXDR = *hi2c->pBuffPtr; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - } - - /* Wait until STOP flag is set */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) - { - /* Normal use case for Transmitter mode */ - /* A NACK is generated to confirm the end of transfer */ - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - } - else - { - return HAL_ERROR; - } - } - - /* Clear STOP flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in blocking mode - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - - /* Wait until DIR flag is reset Receiver mode */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_DIR, SET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - while (hi2c->XferCount > 0U) - { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - /* Store Last receive data if any */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == SET) - { - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - } - - return HAL_ERROR; - } - - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - } - - /* Wait until STOP flag is set */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Clear STOP flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, Timeout, tickstart) != HAL_OK) - { - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - return HAL_ERROR; - } - - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in master mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) -{ - uint32_t xfermode; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_IT; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_WRITE); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in master mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) -{ - uint32_t xfermode; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_IT; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_READ); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, RXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in slave mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) -{ - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Slave_ISR_IT; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT | I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) -{ - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Slave_ISR_IT; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, RXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT | I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in master mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) -{ - uint32_t xfermode; - HAL_StatusTypeDef dmaxferstatus; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_DMA; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - if (hi2c->XferSize > 0U) - { - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAMasterTransmitCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_WRITE); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - else - { - /* Update Transfer ISR function pointer */ - hi2c->XferISR = I2C_Master_ISR_IT; - - /* Send Slave Address */ - /* Set NBYTES to write and generate START condition */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_WRITE); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in master mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) -{ - uint32_t xfermode; - HAL_StatusTypeDef dmaxferstatus; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_DMA; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - if (hi2c->XferSize > 0U) - { - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAMasterReceiveCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)pData, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Send Slave Address */ - /* Set NBYTES to read and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_READ); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - else - { - /* Update Transfer ISR function pointer */ - hi2c->XferISR = I2C_Master_ISR_IT; - - /* Send Slave Address */ - /* Set NBYTES to read and generate START condition */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_READ); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in slave mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) -{ - HAL_StatusTypeDef dmaxferstatus; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Slave_ISR_DMA; - - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMASlaveTransmitCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, STOP, NACK, ADDR interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) -{ - HAL_StatusTypeDef dmaxferstatus; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Slave_ISR_DMA; - - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMASlaveReceiveCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)pData, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, STOP, NACK, ADDR interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} -/** - * @brief Write an amount of data in blocking mode to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - - do - { - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Write data to TXDR */ - hi2c->Instance->TXDR = *hi2c->pBuffPtr; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - hi2c->XferSize--; - - if ((hi2c->XferCount != 0U) && (hi2c->XferSize == 0U)) - { - /* Wait until TCR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TCR, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - } - - } - while (hi2c->XferCount > 0U); - - /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */ - /* Wait until STOPF flag is reset */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Read an amount of data in blocking mode from a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint32_t tickstart; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferISR = NULL; - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_GENERATE_START_READ); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_READ); - } - - do - { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_RXNE, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferSize--; - hi2c->XferCount--; - - if ((hi2c->XferCount != 0U) && (hi2c->XferSize == 0U)) - { - /* Wait until TCR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TCR, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t) hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - } - } - while (hi2c->XferCount > 0U); - - /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */ - /* Wait until STOPF flag is reset */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} -/** - * @brief Write an amount of data in non-blocking mode with Interrupt to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) -{ - uint32_t tickstart; - uint32_t xfermode; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_IT; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_NO_STARTSTOP); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Read an amount of data in non-blocking mode with Interrupt from a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) -{ - uint32_t tickstart; - uint32_t xfermode; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_IT; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_READ); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable ERR, TC, STOP, NACK, RXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} -/** - * @brief Write an amount of data in non-blocking mode with DMA to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) -{ - uint32_t tickstart; - uint32_t xfermode; - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_DMA; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAMasterTransmitCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Send Slave Address */ - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_NO_STARTSTOP); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Reads an amount of data in non-blocking mode with DMA from a specific memory address. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be read - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) -{ - uint32_t tickstart; - uint32_t xfermode; - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferISR = I2C_Master_ISR_DMA; - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = I2C_AUTOEND_MODE; - } - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAMasterReceiveCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)pData, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Set NBYTES to write and reload if hi2c->XferCount > MAX_NBYTE_SIZE and generate RESTART */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, I2C_GENERATE_START_READ); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Checks if target device is ready for communication. - * @note This function is used with Memory devices - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param Trials Number of trials - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout) -{ - uint32_t tickstart; - - __IO uint32_t I2C_Trials = 0UL; - - FlagStatus tmp1; - FlagStatus tmp2; - - if (hi2c->State == HAL_I2C_STATE_READY) - { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) == SET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - do - { - /* Generate Start */ - hi2c->Instance->CR2 = I2C_GENERATE_START(hi2c->Init.AddressingMode, DevAddress); - - /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */ - /* Wait until STOPF flag is set or a NACK flag is set*/ - tickstart = HAL_GetTick(); - - tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF); - tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); - - while ((tmp1 == RESET) && (tmp2 == RESET)) - { - if (Timeout != HAL_MAX_DELAY) - { - if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - - tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF); - tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); - } - - /* Check if the NACKF flag has not been set */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == RESET) - { - /* Wait until STOPF flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_STOPF, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Device is ready */ - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } - else - { - /* Wait until STOPF flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_STOPF, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Clear STOP Flag, auto generated with autoend*/ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - } - - /* Check if the maximum allowed number of trials has been reached */ - if (I2C_Trials == Trials) - { - /* Generate Stop */ - hi2c->Instance->CR2 |= I2C_CR2_STOP; - - /* Wait until STOPF flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_STOPF, RESET, Timeout, tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - } - - /* Increment Trials */ - I2C_Trials++; - } - while (I2C_Trials < Trials); - - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Sequential transmit in master I2C mode an amount of data in non-blocking mode with Interrupt. - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - uint32_t xfermode; - uint32_t xferrequest = I2C_GENERATE_START_WRITE; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Master_ISR_IT; - - /* If hi2c->XferCount > MAX_NBYTE_SIZE, use reload mode */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = hi2c->XferOptions; - } - - /* If transfer direction not change and there is no request to start another frame, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hi2c->PreviousState == I2C_STATE_MASTER_BUSY_TX) && (IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(XferOptions) == 0)) - { - xferrequest = I2C_NO_STARTSTOP; - } - else - { - /* Convert OTHER_xxx XferOptions if any */ - I2C_ConvertOtherXferOptions(hi2c); - - /* Update xfermode accordingly if no reload is necessary */ - if (hi2c->XferCount < MAX_NBYTE_SIZE) - { - xfermode = hi2c->XferOptions; - } - } - - /* Send Slave Address and set NBYTES to write */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, xferrequest); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Sequential transmit in master I2C mode an amount of data in non-blocking mode with DMA. - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - uint32_t xfermode; - uint32_t xferrequest = I2C_GENERATE_START_WRITE; - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Master_ISR_DMA; - - /* If hi2c->XferCount > MAX_NBYTE_SIZE, use reload mode */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = hi2c->XferOptions; - } - - /* If transfer direction not change and there is no request to start another frame, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hi2c->PreviousState == I2C_STATE_MASTER_BUSY_TX) && (IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(XferOptions) == 0)) - { - xferrequest = I2C_NO_STARTSTOP; - } - else - { - /* Convert OTHER_xxx XferOptions if any */ - I2C_ConvertOtherXferOptions(hi2c); - - /* Update xfermode accordingly if no reload is necessary */ - if (hi2c->XferCount < MAX_NBYTE_SIZE) - { - xfermode = hi2c->XferOptions; - } - } - - if (hi2c->XferSize > 0U) - { - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAMasterTransmitCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Send Slave Address and set NBYTES to write */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, xferrequest); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - else - { - /* Update Transfer ISR function pointer */ - hi2c->XferISR = I2C_Master_ISR_IT; - - /* Send Slave Address */ - /* Set NBYTES to write and generate START condition */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_WRITE); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Sequential receive in master I2C mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - uint32_t xfermode; - uint32_t xferrequest = I2C_GENERATE_START_READ; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Master_ISR_IT; - - /* If hi2c->XferCount > MAX_NBYTE_SIZE, use reload mode */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = hi2c->XferOptions; - } - - /* If transfer direction not change and there is no request to start another frame, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hi2c->PreviousState == I2C_STATE_MASTER_BUSY_RX) && (IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(XferOptions) == 0)) - { - xferrequest = I2C_NO_STARTSTOP; - } - else - { - /* Convert OTHER_xxx XferOptions if any */ - I2C_ConvertOtherXferOptions(hi2c); - - /* Update xfermode accordingly if no reload is necessary */ - if (hi2c->XferCount < MAX_NBYTE_SIZE) - { - xfermode = hi2c->XferOptions; - } - } - - /* Send Slave Address and set NBYTES to read */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, xferrequest); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Sequential receive in master I2C mode an amount of data in non-blocking mode with DMA - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - uint32_t xfermode; - uint32_t xferrequest = I2C_GENERATE_START_READ; - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Master_ISR_DMA; - - /* If hi2c->XferCount > MAX_NBYTE_SIZE, use reload mode */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - xfermode = hi2c->XferOptions; - } - - /* If transfer direction not change and there is no request to start another frame, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hi2c->PreviousState == I2C_STATE_MASTER_BUSY_RX) && (IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(XferOptions) == 0)) - { - xferrequest = I2C_NO_STARTSTOP; - } - else - { - /* Convert OTHER_xxx XferOptions if any */ - I2C_ConvertOtherXferOptions(hi2c); - - /* Update xfermode accordingly if no reload is necessary */ - if (hi2c->XferCount < MAX_NBYTE_SIZE) - { - xfermode = hi2c->XferOptions; - } - } - - if (hi2c->XferSize > 0U) - { - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAMasterReceiveCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)pData, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Send Slave Address and set NBYTES to read */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, xfermode, xferrequest); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR and NACK interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_ERROR_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - else - { - /* Update Transfer ISR function pointer */ - hi2c->XferISR = I2C_Master_ISR_IT; - - /* Send Slave Address */ - /* Set NBYTES to read and generate START condition */ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_GENERATE_START_READ); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - /* possible to enable all of these */ - /* I2C_IT_ERRI | I2C_IT_TCI| I2C_IT_STOPI| I2C_IT_NACKI | I2C_IT_ADDRI | I2C_IT_RXI | I2C_IT_TXI */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Sequential transmit in slave/device I2C mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) == (uint32_t)HAL_I2C_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_TX_IT); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* I2C cannot manage full duplex exchange so disable previous IT enabled if any */ - /* and then toggle the HAL slave RX state to TX state */ - if (hi2c->State == HAL_I2C_STATE_BUSY_RX_LISTEN) - { - /* Disable associated Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT); - - /* Abort DMA Xfer if any */ - if ((hi2c->Instance->CR1 & I2C_CR1_RXDMAEN) == I2C_CR1_RXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); - } - } - } - } - - hi2c->State = HAL_I2C_STATE_BUSY_TX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Slave_ISR_IT; - - if (I2C_GET_DIR(hi2c) == I2C_DIRECTION_RECEIVE) - { - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the Master */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* REnable ADDR interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_TX_IT | I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Sequential transmit in slave/device I2C mode an amount of data in non-blocking mode with DMA - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) == (uint32_t)HAL_I2C_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_TX_IT); - - /* I2C cannot manage full duplex exchange so disable previous IT enabled if any */ - /* and then toggle the HAL slave RX state to TX state */ - if (hi2c->State == HAL_I2C_STATE_BUSY_RX_LISTEN) - { - /* Disable associated Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT); - - if ((hi2c->Instance->CR1 & I2C_CR1_RXDMAEN) == I2C_CR1_RXDMAEN) - { - /* Abort DMA Xfer if any */ - if (hi2c->hdmarx != NULL) - { - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); - } - } - } - } - else if (hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) - { - if ((hi2c->Instance->CR1 & I2C_CR1_TXDMAEN) == I2C_CR1_TXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - /* Abort DMA Xfer if any */ - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA TX */ - if (HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); - } - } - } - } - else - { - /* Nothing to do */ - } - - hi2c->State = HAL_I2C_STATE_BUSY_TX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Slave_ISR_DMA; - - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMASlaveTransmitCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Reset XferSize */ - hi2c->XferSize = 0; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (I2C_GET_DIR(hi2c) == I2C_DIRECTION_RECEIVE) - { - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the Master */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR, STOP, NACK, ADDR interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Sequential receive in slave/device I2C mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) == (uint32_t)HAL_I2C_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_RX_IT); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* I2C cannot manage full duplex exchange so disable previous IT enabled if any */ - /* and then toggle the HAL slave TX state to RX state */ - if (hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) - { - /* Disable associated Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT); - - if ((hi2c->Instance->CR1 & I2C_CR1_TXDMAEN) == I2C_CR1_TXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - /* Abort DMA Xfer if any */ - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA TX */ - if (HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); - } - } - } - } - - hi2c->State = HAL_I2C_STATE_BUSY_RX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Slave_ISR_IT; - - if (I2C_GET_DIR(hi2c) == I2C_DIRECTION_TRANSMIT) - { - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the Master */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* REnable ADDR interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT | I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Sequential receive in slave/device I2C mode an amount of data in non-blocking mode with DMA - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XFEROPTIONS - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - HAL_StatusTypeDef dmaxferstatus; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) == (uint32_t)HAL_I2C_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - hi2c->ErrorCode = HAL_I2C_ERROR_INVALID_PARAM; - return HAL_ERROR; - } - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_RX_IT); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* I2C cannot manage full duplex exchange so disable previous IT enabled if any */ - /* and then toggle the HAL slave TX state to RX state */ - if (hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) - { - /* Disable associated Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT); - - if ((hi2c->Instance->CR1 & I2C_CR1_TXDMAEN) == I2C_CR1_TXDMAEN) - { - /* Abort DMA Xfer if any */ - if (hi2c->hdmatx != NULL) - { - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA TX */ - if (HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); - } - } - } - } - else if (hi2c->State == HAL_I2C_STATE_BUSY_RX_LISTEN) - { - if ((hi2c->Instance->CR1 & I2C_CR1_RXDMAEN) == I2C_CR1_RXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - /* Abort DMA Xfer if any */ - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); - } - } - } - } - else - { - /* Nothing to do */ - } - - hi2c->State = HAL_I2C_STATE_BUSY_RX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferSize = hi2c->XferCount; - hi2c->XferOptions = XferOptions; - hi2c->XferISR = I2C_Slave_ISR_DMA; - - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMASlaveReceiveCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - dmaxferstatus = HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)pData, hi2c->XferSize); - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA_PARAM; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (dmaxferstatus == HAL_OK) - { - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Reset XferSize */ - hi2c->XferSize = 0; - } - else - { - /* Update I2C state */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Update I2C error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - if (I2C_GET_DIR(hi2c) == I2C_DIRECTION_TRANSMIT) - { - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the Master */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* REnable ADDR interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RX_IT | I2C_XFER_LISTEN_IT); - - /* Enable DMA Request */ - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Enable the Address listen mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c) -{ - if (hi2c->State == HAL_I2C_STATE_READY) - { - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->XferISR = I2C_Slave_ISR_IT; - - /* Enable the Address Match interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Disable the Address listen mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c) -{ - /* Declaration of tmp to prevent undefined behavior of volatile usage */ - uint32_t tmp; - - /* Disable Address listen mode only if a transfer is not ongoing */ - if (hi2c->State == HAL_I2C_STATE_LISTEN) - { - tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; - hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->XferISR = NULL; - - /* Disable the Address Match interrupt */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Abort a master I2C IT or DMA process communication with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress) -{ - if (hi2c->Mode == HAL_I2C_MODE_MASTER) - { - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT); - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT); - - /* Set State at HAL_I2C_STATE_ABORT */ - hi2c->State = HAL_I2C_STATE_ABORT; - - /* Set NBYTES to 1 to generate a dummy read on I2C peripheral */ - /* Set AUTOEND mode, this will generate a NACK then STOP condition to abort the current transfer */ - I2C_TransferConfig(hi2c, DevAddress, 1, I2C_AUTOEND_MODE, I2C_GENERATE_STOP); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - I2C_Enable_IRQ(hi2c, I2C_XFER_CPLT_IT); - - return HAL_OK; - } - else - { - /* Wrong usage of abort function */ - /* This function should be used only in case of abort monitored by master device */ - return HAL_ERROR; - } -} - -/** - * @} - */ - -/** @defgroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks - * @{ - */ - -/** - * @brief This function handles I2C event interrupt request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c) -{ - /* Get current IT Flags and IT sources value */ - uint32_t itflags = READ_REG(hi2c->Instance->ISR); - uint32_t itsources = READ_REG(hi2c->Instance->CR1); - - /* I2C events treatment -------------------------------------*/ - if (hi2c->XferISR != NULL) - { - hi2c->XferISR(hi2c, itflags, itsources); - } -} - -/** - * @brief This function handles I2C error interrupt request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c) -{ - uint32_t itflags = READ_REG(hi2c->Instance->ISR); - uint32_t itsources = READ_REG(hi2c->Instance->CR1); - uint32_t tmperror; - - /* I2C Bus error interrupt occurred ------------------------------------*/ - if ((I2C_CHECK_FLAG(itflags, I2C_FLAG_BERR) != RESET) && (I2C_CHECK_IT_SOURCE(itsources, I2C_IT_ERRI) != RESET)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_BERR; - - /* Clear BERR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_BERR); - } - - /* I2C Over-Run/Under-Run interrupt occurred ----------------------------------------*/ - if ((I2C_CHECK_FLAG(itflags, I2C_FLAG_OVR) != RESET) && (I2C_CHECK_IT_SOURCE(itsources, I2C_IT_ERRI) != RESET)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_OVR; - - /* Clear OVR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_OVR); - } - - /* I2C Arbitration Loss error interrupt occurred -------------------------------------*/ - if ((I2C_CHECK_FLAG(itflags, I2C_FLAG_ARLO) != RESET) && (I2C_CHECK_IT_SOURCE(itsources, I2C_IT_ERRI) != RESET)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_ARLO; - - /* Clear ARLO flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ARLO); - } - - /* Store current volatile hi2c->ErrorCode, misra rule */ - tmperror = hi2c->ErrorCode; - - /* Call the Error Callback in case of Error detected */ - if ((tmperror & (HAL_I2C_ERROR_BERR | HAL_I2C_ERROR_OVR | HAL_I2C_ERROR_ARLO)) != HAL_I2C_ERROR_NONE) - { - I2C_ITError(hi2c, tmperror); - } -} - -/** - * @brief Master Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MasterTxCpltCallback could be implemented in the user file - */ -} - -/** - * @brief Master Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MasterRxCpltCallback could be implemented in the user file - */ -} - -/** @brief Slave Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_SlaveTxCpltCallback could be implemented in the user file - */ -} - -/** - * @brief Slave Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_SlaveRxCpltCallback could be implemented in the user file - */ -} - -/** - * @brief Slave Address Match callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param TransferDirection Master request Transfer Direction (Write/Read), value of @ref I2C_XFERDIRECTION - * @param AddrMatchCode Address Match Code - * @retval None - */ -__weak void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - UNUSED(TransferDirection); - UNUSED(AddrMatchCode); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_AddrCallback() could be implemented in the user file - */ -} - -/** - * @brief Listen Complete callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_ListenCpltCallback() could be implemented in the user file - */ -} - -/** - * @brief Memory Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MemTxCpltCallback could be implemented in the user file - */ -} - -/** - * @brief Memory Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MemRxCpltCallback could be implemented in the user file - */ -} - -/** - * @brief I2C error callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_ErrorCallback could be implemented in the user file - */ -} - -/** - * @brief I2C abort callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_AbortCpltCallback could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions - * @brief Peripheral State, Mode and Error functions - * -@verbatim - =============================================================================== - ##### Peripheral State, Mode and Error functions ##### - =============================================================================== - [..] - This subsection permit to get in run-time the status of the peripheral - and the data flow. - -@endverbatim - * @{ - */ - -/** - * @brief Return the I2C handle state. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL state - */ -HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c) -{ - /* Return I2C handle state */ - return hi2c->State; -} - -/** - * @brief Returns the I2C Master, Slave, Memory or no mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL mode - */ -HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c) -{ - return hi2c->Mode; -} - -/** -* @brief Return the I2C error code. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. -* @retval I2C Error Code -*/ -uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c) -{ - return hi2c->ErrorCode; -} - -/** - * @} - */ - -/** - * @} - */ - -/** @addtogroup I2C_Private_Functions - * @{ - */ - -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Master Mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param ITFlags Interrupt flags to handle. - * @param ITSources Interrupt sources enabled. - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Master_ISR_IT(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) -{ - uint16_t devaddress; - uint32_t tmpITFlags = ITFlags; - - /* Process Locked */ - __HAL_LOCK(hi2c); - - if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_AF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_NACKI) != RESET)) - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Set corresponding Error Code */ - /* No need to generate STOP, it is automatically done */ - /* Error callback will be send during stop flag treatment */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_RXNE) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_RXI) != RESET)) - { - /* Remove RXNE flag on temporary variable as read done */ - tmpITFlags &= ~I2C_FLAG_RXNE; - - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferSize--; - hi2c->XferCount--; - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_TXIS) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TXI) != RESET)) - { - /* Write data to TXDR */ - hi2c->Instance->TXDR = *hi2c->pBuffPtr; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferSize--; - hi2c->XferCount--; - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_TCR) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TCI) != RESET)) - { - if ((hi2c->XferCount != 0U) && (hi2c->XferSize == 0U)) - { - devaddress = (uint16_t)(hi2c->Instance->CR2 & I2C_CR2_SADD); - - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - I2C_TransferConfig(hi2c, devaddress, (uint8_t)hi2c->XferSize, I2C_RELOAD_MODE, I2C_NO_STARTSTOP); - } - else - { - hi2c->XferSize = hi2c->XferCount; - if (hi2c->XferOptions != I2C_NO_OPTION_FRAME) - { - I2C_TransferConfig(hi2c, devaddress, (uint8_t)hi2c->XferSize, hi2c->XferOptions, I2C_NO_STARTSTOP); - } - else - { - I2C_TransferConfig(hi2c, devaddress, (uint8_t)hi2c->XferSize, I2C_AUTOEND_MODE, I2C_NO_STARTSTOP); - } - } - } - else - { - /* Call TxCpltCallback() if no stop mode is set */ - if (I2C_GET_STOP_MODE(hi2c) != I2C_AUTOEND_MODE) - { - /* Call I2C Master Sequential complete process */ - I2C_ITMasterSeqCplt(hi2c); - } - else - { - /* Wrong size Status regarding TCR flag event */ - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_SIZE); - } - } - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_TC) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TCI) != RESET)) - { - if (hi2c->XferCount == 0U) - { - if (I2C_GET_STOP_MODE(hi2c) != I2C_AUTOEND_MODE) - { - /* Generate a stop condition in case of no transfer option */ - if (hi2c->XferOptions == I2C_NO_OPTION_FRAME) - { - /* Generate Stop */ - hi2c->Instance->CR2 |= I2C_CR2_STOP; - } - else - { - /* Call I2C Master Sequential complete process */ - I2C_ITMasterSeqCplt(hi2c); - } - } - } - else - { - /* Wrong size Status regarding TC flag event */ - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_SIZE); - } - } - else - { - /* Nothing to do */ - } - - if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_STOPF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_STOPI) != RESET)) - { - /* Call I2C Master complete process */ - I2C_ITMasterCplt(hi2c, tmpITFlags); - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param ITFlags Interrupt flags to handle. - * @param ITSources Interrupt sources enabled. - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Slave_ISR_IT(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) -{ - uint32_t tmpoptions = hi2c->XferOptions; - uint32_t tmpITFlags = ITFlags; - - /* Process locked */ - __HAL_LOCK(hi2c); - - /* Check if STOPF is set */ - if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_STOPF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_STOPI) != RESET)) - { - /* Call I2C Slave complete process */ - I2C_ITSlaveCplt(hi2c, tmpITFlags); - } - - if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_AF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_NACKI) != RESET)) - { - /* Check that I2C transfer finished */ - /* if yes, normal use case, a NACK is sent by the MASTER when Transfer is finished */ - /* Mean XferCount == 0*/ - /* So clear Flag NACKF only */ - if (hi2c->XferCount == 0U) - { - if ((hi2c->State == HAL_I2C_STATE_LISTEN) && (tmpoptions == I2C_FIRST_AND_LAST_FRAME)) /* Same action must be done for (tmpoptions == I2C_LAST_FRAME) which removed for Warning[Pa134]: left and right operands are identical */ - { - /* Call I2C Listen complete process */ - I2C_ITListenCplt(hi2c, tmpITFlags); - } - else if ((hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) && (tmpoptions != I2C_NO_OPTION_FRAME)) - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - - /* Last Byte is Transmitted */ - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - else - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - } - } - else - { - /* if no, error use case, a Non-Acknowledge of last Data is generated by the MASTER*/ - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Set ErrorCode corresponding to a Non-Acknowledge */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - - if ((tmpoptions == I2C_FIRST_FRAME) || (tmpoptions == I2C_NEXT_FRAME)) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, hi2c->ErrorCode); - } - } - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_RXNE) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_RXI) != RESET)) - { - if (hi2c->XferCount > 0U) - { - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferSize--; - hi2c->XferCount--; - } - - if ((hi2c->XferCount == 0U) && \ - (tmpoptions != I2C_NO_OPTION_FRAME)) - { - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_ADDR) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_ADDRI) != RESET)) - { - I2C_ITAddrCplt(hi2c, tmpITFlags); - } - else if ((I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_TXIS) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TXI) != RESET)) - { - /* Write data to TXDR only if XferCount not reach "0" */ - /* A TXIS flag can be set, during STOP treatment */ - /* Check if all Datas have already been sent */ - /* If it is the case, this last write in TXDR is not sent, correspond to a dummy TXIS event */ - if (hi2c->XferCount > 0U) - { - /* Write data to TXDR */ - hi2c->Instance->TXDR = *hi2c->pBuffPtr; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - hi2c->XferCount--; - hi2c->XferSize--; - } - else - { - if ((tmpoptions == I2C_NEXT_FRAME) || (tmpoptions == I2C_FIRST_FRAME)) - { - /* Last Byte is Transmitted */ - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - } - } - else - { - /* Nothing to do */ - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Master Mode with DMA. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param ITFlags Interrupt flags to handle. - * @param ITSources Interrupt sources enabled. - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Master_ISR_DMA(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) -{ - uint16_t devaddress; - uint32_t xfermode; - - /* Process Locked */ - __HAL_LOCK(hi2c); - - if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_AF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_NACKI) != RESET)) - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Set corresponding Error Code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - - /* No need to generate STOP, it is automatically done */ - /* But enable STOP interrupt, to treat it */ - /* Error callback will be send during stop flag treatment */ - I2C_Enable_IRQ(hi2c, I2C_XFER_CPLT_IT); - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - } - else if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_TCR) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TCI) != RESET)) - { - /* Disable TC interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_TCI); - - if (hi2c->XferCount != 0U) - { - /* Recover Slave address */ - devaddress = (uint16_t)(hi2c->Instance->CR2 & I2C_CR2_SADD); - - /* Prepare the new XferSize to transfer */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - xfermode = I2C_RELOAD_MODE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - if (hi2c->XferOptions != I2C_NO_OPTION_FRAME) - { - xfermode = hi2c->XferOptions; - } - else - { - xfermode = I2C_AUTOEND_MODE; - } - } - - /* Set the new XferSize in Nbytes register */ - I2C_TransferConfig(hi2c, devaddress, (uint8_t)hi2c->XferSize, xfermode, I2C_NO_STARTSTOP); - - /* Update XferCount value */ - hi2c->XferCount -= hi2c->XferSize; - - /* Enable DMA Request */ - if (hi2c->State == HAL_I2C_STATE_BUSY_RX) - { - hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN; - } - else - { - hi2c->Instance->CR1 |= I2C_CR1_TXDMAEN; - } - } - else - { - /* Call TxCpltCallback() if no stop mode is set */ - if (I2C_GET_STOP_MODE(hi2c) != I2C_AUTOEND_MODE) - { - /* Call I2C Master Sequential complete process */ - I2C_ITMasterSeqCplt(hi2c); - } - else - { - /* Wrong size Status regarding TCR flag event */ - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_SIZE); - } - } - } - else if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_TC) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_TCI) != RESET)) - { - if (hi2c->XferCount == 0U) - { - if (I2C_GET_STOP_MODE(hi2c) != I2C_AUTOEND_MODE) - { - /* Generate a stop condition in case of no transfer option */ - if (hi2c->XferOptions == I2C_NO_OPTION_FRAME) - { - /* Generate Stop */ - hi2c->Instance->CR2 |= I2C_CR2_STOP; - } - else - { - /* Call I2C Master Sequential complete process */ - I2C_ITMasterSeqCplt(hi2c); - } - } - } - else - { - /* Wrong size Status regarding TC flag event */ - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_SIZE); - } - } - else if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_STOPF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_STOPI) != RESET)) - { - /* Call I2C Master complete process */ - I2C_ITMasterCplt(hi2c, ITFlags); - } - else - { - /* Nothing to do */ - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode with DMA. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param ITFlags Interrupt flags to handle. - * @param ITSources Interrupt sources enabled. - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Slave_ISR_DMA(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) -{ - uint32_t tmpoptions = hi2c->XferOptions; - uint32_t treatdmanack = 0U; - - /* Process locked */ - __HAL_LOCK(hi2c); - - /* Check if STOPF is set */ - if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_STOPF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_STOPI) != RESET)) - { - /* Call I2C Slave complete process */ - I2C_ITSlaveCplt(hi2c, ITFlags); - } - - if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_AF) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_NACKI) != RESET)) - { - /* Check that I2C transfer finished */ - /* if yes, normal use case, a NACK is sent by the MASTER when Transfer is finished */ - /* Mean XferCount == 0 */ - /* So clear Flag NACKF only */ - if ((I2C_CHECK_IT_SOURCE(ITSources, I2C_CR1_TXDMAEN) != RESET) || - (I2C_CHECK_IT_SOURCE(ITSources, I2C_CR1_RXDMAEN) != RESET)) - { - /* Split check of hdmarx, for MISRA compliance */ - if (hi2c->hdmarx != NULL) - { - if (I2C_CHECK_IT_SOURCE(ITSources, I2C_CR1_RXDMAEN) != RESET) - { - if (__HAL_DMA_GET_COUNTER(hi2c->hdmarx) == 0U) - { - treatdmanack = 1U; - } - } - } - - /* Split check of hdmatx, for MISRA compliance */ - if (hi2c->hdmatx != NULL) - { - if (I2C_CHECK_IT_SOURCE(ITSources, I2C_CR1_TXDMAEN) != RESET) - { - if (__HAL_DMA_GET_COUNTER(hi2c->hdmatx) == 0U) - { - treatdmanack = 1U; - } - } - } - - if (treatdmanack == 1U) - { - if ((hi2c->State == HAL_I2C_STATE_LISTEN) && (tmpoptions == I2C_FIRST_AND_LAST_FRAME)) /* Same action must be done for (tmpoptions == I2C_LAST_FRAME) which removed for Warning[Pa134]: left and right operands are identical */ - { - /* Call I2C Listen complete process */ - I2C_ITListenCplt(hi2c, ITFlags); - } - else if ((hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) && (tmpoptions != I2C_NO_OPTION_FRAME)) - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - - /* Last Byte is Transmitted */ - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - else - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - } - } - else - { - /* if no, error use case, a Non-Acknowledge of last Data is generated by the MASTER*/ - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Set ErrorCode corresponding to a Non-Acknowledge */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - - if ((tmpoptions == I2C_FIRST_FRAME) || (tmpoptions == I2C_NEXT_FRAME)) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, hi2c->ErrorCode); - } - } - } - else - { - /* Only Clear NACK Flag, no DMA treatment is pending */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - } - } - else if ((I2C_CHECK_FLAG(ITFlags, I2C_FLAG_ADDR) != RESET) && (I2C_CHECK_IT_SOURCE(ITSources, I2C_IT_ADDRI) != RESET)) - { - I2C_ITAddrCplt(hi2c, ITFlags); - } - else - { - /* Nothing to do */ - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief Master sends target device address followed by internal memory address for write request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) -{ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)MemAddSize, I2C_RELOAD_MODE, I2C_GENERATE_START_WRITE); - - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* If Memory address size is 8Bit */ - if (MemAddSize == I2C_MEMADD_SIZE_8BIT) - { - /* Send Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_LSB(MemAddress); - } - /* If Memory address size is 16Bit */ - else - { - /* Send MSB of Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_MSB(MemAddress); - - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Send LSB of Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_LSB(MemAddress); - } - - /* Wait until TCR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TCR, RESET, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - return HAL_OK; -} - -/** - * @brief Master sends target device address followed by internal memory address for read request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) -{ - I2C_TransferConfig(hi2c, DevAddress, (uint8_t)MemAddSize, I2C_SOFTEND_MODE, I2C_GENERATE_START_WRITE); - - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* If Memory address size is 8Bit */ - if (MemAddSize == I2C_MEMADD_SIZE_8BIT) - { - /* Send Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_LSB(MemAddress); - } - /* If Memory address size is 16Bit */ - else - { - /* Send MSB of Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_MSB(MemAddress); - - /* Wait until TXIS flag is set */ - if (I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Send LSB of Memory Address */ - hi2c->Instance->TXDR = I2C_MEM_ADD_LSB(MemAddress); - } - - /* Wait until TC flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_TC, RESET, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - return HAL_OK; -} - -/** - * @brief I2C Address complete process callback. - * @param hi2c I2C handle. - * @param ITFlags Interrupt flags to handle. - * @retval None - */ -static void I2C_ITAddrCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags) -{ - uint8_t transferdirection; - uint16_t slaveaddrcode; - uint16_t ownadd1code; - uint16_t ownadd2code; - - /* Prevent unused argument(s) compilation warning */ - UNUSED(ITFlags); - - /* In case of Listen state, need to inform upper layer of address match code event */ - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) == (uint32_t)HAL_I2C_STATE_LISTEN) - { - transferdirection = I2C_GET_DIR(hi2c); - slaveaddrcode = I2C_GET_ADDR_MATCH(hi2c); - ownadd1code = I2C_GET_OWN_ADDRESS1(hi2c); - ownadd2code = I2C_GET_OWN_ADDRESS2(hi2c); - - /* If 10bits addressing mode is selected */ - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_10BIT) - { - if ((slaveaddrcode & SlaveAddr_MSK) == ((ownadd1code >> SlaveAddr_SHIFT) & SlaveAddr_MSK)) - { - slaveaddrcode = ownadd1code; - hi2c->AddrEventCount++; - if (hi2c->AddrEventCount == 2U) - { - /* Reset Address Event counter */ - hi2c->AddrEventCount = 0U; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call Slave Addr callback */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->AddrCallback(hi2c, transferdirection, slaveaddrcode); -#else - HAL_I2C_AddrCallback(hi2c, transferdirection, slaveaddrcode); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - } - else - { - slaveaddrcode = ownadd2code; - - /* Disable ADDR Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call Slave Addr callback */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->AddrCallback(hi2c, transferdirection, slaveaddrcode); -#else - HAL_I2C_AddrCallback(hi2c, transferdirection, slaveaddrcode); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - } - /* else 7 bits addressing mode is selected */ - else - { - /* Disable ADDR Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call Slave Addr callback */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->AddrCallback(hi2c, transferdirection, slaveaddrcode); -#else - HAL_I2C_AddrCallback(hi2c, transferdirection, slaveaddrcode); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - } - /* Else clear address flag only */ - else - { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ADDR); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - } -} - -/** - * @brief I2C Master sequential complete process. - * @param hi2c I2C handle. - * @retval None - */ -static void I2C_ITMasterSeqCplt(I2C_HandleTypeDef *hi2c) -{ - /* Reset I2C handle mode */ - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* No Generate Stop, to permit restart mode */ - /* The stop will be done at the end of transfer, when I2C_AUTOEND_MODE enable */ - if (hi2c->State == HAL_I2C_STATE_BUSY_TX) - { - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_MASTER_BUSY_TX; - hi2c->XferISR = NULL; - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MasterTxCpltCallback(hi2c); -#else - HAL_I2C_MasterTxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - /* hi2c->State == HAL_I2C_STATE_BUSY_RX */ - else - { - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_MASTER_BUSY_RX; - hi2c->XferISR = NULL; - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MasterRxCpltCallback(hi2c); -#else - HAL_I2C_MasterRxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } -} - -/** - * @brief I2C Slave sequential complete process. - * @param hi2c I2C handle. - * @retval None - */ -static void I2C_ITSlaveSeqCplt(I2C_HandleTypeDef *hi2c) -{ - /* Reset I2C handle mode */ - hi2c->Mode = HAL_I2C_MODE_NONE; - - if (hi2c->State == HAL_I2C_STATE_BUSY_TX_LISTEN) - { - /* Remove HAL_I2C_STATE_SLAVE_BUSY_TX, keep only HAL_I2C_STATE_LISTEN */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->PreviousState = I2C_STATE_SLAVE_BUSY_TX; - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->SlaveTxCpltCallback(hi2c); -#else - HAL_I2C_SlaveTxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - - else if (hi2c->State == HAL_I2C_STATE_BUSY_RX_LISTEN) - { - /* Remove HAL_I2C_STATE_SLAVE_BUSY_RX, keep only HAL_I2C_STATE_LISTEN */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->PreviousState = I2C_STATE_SLAVE_BUSY_RX; - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->SlaveRxCpltCallback(hi2c); -#else - HAL_I2C_SlaveRxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - /* Nothing to do */ - } -} - -/** - * @brief I2C Master complete process. - * @param hi2c I2C handle. - * @param ITFlags Interrupt flags to handle. - * @retval None - */ -static void I2C_ITMasterCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags) -{ - uint32_t tmperror; - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - /* Reset handle parameters */ - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->XferISR = NULL; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - - if (I2C_CHECK_FLAG(ITFlags, I2C_FLAG_AF) != RESET) - { - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Set acknowledge error code */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - } - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - - /* Disable Interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_TX_IT | I2C_XFER_RX_IT); - - /* Store current volatile hi2c->ErrorCode, misra rule */ - tmperror = hi2c->ErrorCode; - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - if ((hi2c->State == HAL_I2C_STATE_ABORT) || (tmperror != HAL_I2C_ERROR_NONE)) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, hi2c->ErrorCode); - } - /* hi2c->State == HAL_I2C_STATE_BUSY_TX */ - else if (hi2c->State == HAL_I2C_STATE_BUSY_TX) - { - hi2c->State = HAL_I2C_STATE_READY; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) - { - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MemTxCpltCallback(hi2c); -#else - HAL_I2C_MemTxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MasterTxCpltCallback(hi2c); -#else - HAL_I2C_MasterTxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - } - /* hi2c->State == HAL_I2C_STATE_BUSY_RX */ - else if (hi2c->State == HAL_I2C_STATE_BUSY_RX) - { - hi2c->State = HAL_I2C_STATE_READY; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) - { - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MemRxCpltCallback(hi2c); -#else - HAL_I2C_MemRxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->MasterRxCpltCallback(hi2c); -#else - HAL_I2C_MasterRxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - } - else - { - /* Nothing to do */ - } -} - -/** - * @brief I2C Slave complete process. - * @param hi2c I2C handle. - * @param ITFlags Interrupt flags to handle. - * @retval None - */ -static void I2C_ITSlaveCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags) -{ - uint32_t tmpcr1value = READ_REG(hi2c->Instance->CR1); - uint32_t tmpITFlags = ITFlags; - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Disable all interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_TX_IT | I2C_XFER_RX_IT); - - /* Disable Address Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - - /* If a DMA is ongoing, Update handle size context */ - if (I2C_CHECK_IT_SOURCE(tmpcr1value, I2C_CR1_TXDMAEN) != RESET) - { - if (hi2c->hdmatx != NULL) - { - hi2c->XferCount = (uint16_t)__HAL_DMA_GET_COUNTER(hi2c->hdmatx); - } - } - else if (I2C_CHECK_IT_SOURCE(tmpcr1value, I2C_CR1_RXDMAEN) != RESET) - { - if (hi2c->hdmarx != NULL) - { - hi2c->XferCount = (uint16_t)__HAL_DMA_GET_COUNTER(hi2c->hdmarx); - } - } - else - { - /* Do nothing */ - } - - /* Store Last receive data if any */ - if (I2C_CHECK_FLAG(tmpITFlags, I2C_FLAG_RXNE) != RESET) - { - /* Remove RXNE flag on temporary variable as read done */ - tmpITFlags &= ~I2C_FLAG_RXNE; - - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - if ((hi2c->XferSize > 0U)) - { - hi2c->XferSize--; - hi2c->XferCount--; - } - } - - /* All data are not transferred, so set error code accordingly */ - if (hi2c->XferCount != 0U) - { - /* Set ErrorCode corresponding to a Non-Acknowledge */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - } - - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->XferISR = NULL; - - if (hi2c->ErrorCode != HAL_I2C_ERROR_NONE) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, hi2c->ErrorCode); - - /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ - if (hi2c->State == HAL_I2C_STATE_LISTEN) - { - /* Call I2C Listen complete process */ - I2C_ITListenCplt(hi2c, tmpITFlags); - } - } - else if (hi2c->XferOptions != I2C_NO_OPTION_FRAME) - { - /* Call the Sequential Complete callback, to inform upper layer of the end of Tranfer */ - I2C_ITSlaveSeqCplt(hi2c); - - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->ListenCpltCallback(hi2c); -#else - HAL_I2C_ListenCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - /* Call the corresponding callback to inform upper layer of End of Transfer */ - else if (hi2c->State == HAL_I2C_STATE_BUSY_RX) - { - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->SlaveRxCpltCallback(hi2c); -#else - HAL_I2C_SlaveRxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->SlaveTxCpltCallback(hi2c); -#else - HAL_I2C_SlaveTxCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } -} - -/** - * @brief I2C Listen complete process. - * @param hi2c I2C handle. - * @param ITFlags Interrupt flags to handle. - * @retval None - */ -static void I2C_ITListenCplt(I2C_HandleTypeDef *hi2c, uint32_t ITFlags) -{ - /* Reset handle parameters */ - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->XferISR = NULL; - - /* Store Last receive data if any */ - if (I2C_CHECK_FLAG(ITFlags, I2C_FLAG_RXNE) != RESET) - { - /* Read data from RXDR */ - *hi2c->pBuffPtr = (uint8_t)hi2c->Instance->RXDR; - - /* Increment Buffer pointer */ - hi2c->pBuffPtr++; - - if ((hi2c->XferSize > 0U)) - { - hi2c->XferSize--; - hi2c->XferCount--; - - /* Set ErrorCode corresponding to a Non-Acknowledge */ - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - } - } - - /* Disable all Interrupts*/ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_RX_IT | I2C_XFER_TX_IT); - - /* Clear NACK Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->ListenCpltCallback(hi2c); -#else - HAL_I2C_ListenCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ -} - -/** - * @brief I2C interrupts error process. - * @param hi2c I2C handle. - * @param ErrorCode Error code to handle. - * @retval None - */ -static void I2C_ITError(I2C_HandleTypeDef *hi2c, uint32_t ErrorCode) -{ - HAL_I2C_StateTypeDef tmpstate = hi2c->State; - - /* Reset handle parameters */ - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferCount = 0U; - - /* Set new error code */ - hi2c->ErrorCode |= ErrorCode; - - /* Disable Interrupts */ - if ((tmpstate == HAL_I2C_STATE_LISTEN) || - (tmpstate == HAL_I2C_STATE_BUSY_TX_LISTEN) || - (tmpstate == HAL_I2C_STATE_BUSY_RX_LISTEN)) - { - /* Disable all interrupts, except interrupts related to LISTEN state */ - I2C_Disable_IRQ(hi2c, I2C_XFER_RX_IT | I2C_XFER_TX_IT); - - /* keep HAL_I2C_STATE_LISTEN if set */ - hi2c->State = HAL_I2C_STATE_LISTEN; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->XferISR = I2C_Slave_ISR_IT; - } - else - { - /* Disable all interrupts */ - I2C_Disable_IRQ(hi2c, I2C_XFER_LISTEN_IT | I2C_XFER_RX_IT | I2C_XFER_TX_IT); - - /* If state is an abort treatment on goind, don't change state */ - /* This change will be do later */ - if (hi2c->State != HAL_I2C_STATE_ABORT) - { - /* Set HAL_I2C_STATE_READY */ - hi2c->State = HAL_I2C_STATE_READY; - } - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->XferISR = NULL; - } - - /* Abort DMA TX transfer if any */ - if ((hi2c->Instance->CR1 & I2C_CR1_TXDMAEN) == I2C_CR1_TXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - if (hi2c->hdmatx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Abort DMA TX */ - if (HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) - { - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); - } - } - } - /* Abort DMA RX transfer if any */ - else if ((hi2c->Instance->CR1 & I2C_CR1_RXDMAEN) == I2C_CR1_RXDMAEN) - { - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - if (hi2c->hdmarx != NULL) - { - /* Set the I2C DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) - { - /* Call Directly hi2c->hdmarx->XferAbortCallback function in case of error */ - hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); - } - } - } - else if (hi2c->State == HAL_I2C_STATE_ABORT) - { - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->AbortCpltCallback(hi2c); -#else - HAL_I2C_AbortCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->ErrorCallback(hi2c); -#else - HAL_I2C_ErrorCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } -} - -/** - * @brief I2C Tx data register flush process. - * @param hi2c I2C handle. - * @retval None - */ -static void I2C_Flush_TXDR(I2C_HandleTypeDef *hi2c) -{ - /* If a pending TXIS flag is set */ - /* Write a dummy data in TXDR to clear it */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TXIS) != RESET) - { - hi2c->Instance->TXDR = 0x00U; - } - - /* Flush TX register if not empty */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TXE) == RESET) - { - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_TXE); - } -} - -/** - * @brief DMA I2C master transmit process complete callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMAMasterTransmitCplt(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - - /* Disable DMA Request */ - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - /* If last transfer, enable STOP interrupt */ - if (hi2c->XferCount == 0U) - { - /* Enable STOP interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_CPLT_IT); - } - /* else prepare a new DMA transfer and enable TCReload interrupt */ - else - { - /* Update Buffer pointer */ - hi2c->pBuffPtr += hi2c->XferSize; - - /* Set the XferSize to transfer */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - } - - /* Enable the DMA channel */ - if (HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)hi2c->pBuffPtr, (uint32_t)&hi2c->Instance->TXDR, hi2c->XferSize) != HAL_OK) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_DMA); - } - else - { - /* Enable TC interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RELOAD_IT); - } - } -} - -/** - * @brief DMA I2C slave transmit process complete callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMASlaveTransmitCplt(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - uint32_t tmpoptions = hi2c->XferOptions; - - if ((tmpoptions == I2C_NEXT_FRAME) || (tmpoptions == I2C_FIRST_FRAME)) - { - /* Disable DMA Request */ - hi2c->Instance->CR1 &= ~I2C_CR1_TXDMAEN; - - /* Last Byte is Transmitted */ - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - else - { - /* No specific action, Master fully manage the generation of STOP condition */ - /* Mean that this generation can arrive at any time, at the end or during DMA process */ - /* So STOP condition should be manage through Interrupt treatment */ - } -} - -/** - * @brief DMA I2C master receive process complete callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMAMasterReceiveCplt(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - - /* Disable DMA Request */ - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - /* If last transfer, enable STOP interrupt */ - if (hi2c->XferCount == 0U) - { - /* Enable STOP interrupt */ - I2C_Enable_IRQ(hi2c, I2C_XFER_CPLT_IT); - } - /* else prepare a new DMA transfer and enable TCReload interrupt */ - else - { - /* Update Buffer pointer */ - hi2c->pBuffPtr += hi2c->XferSize; - - /* Set the XferSize to transfer */ - if (hi2c->XferCount > MAX_NBYTE_SIZE) - { - hi2c->XferSize = MAX_NBYTE_SIZE; - } - else - { - hi2c->XferSize = hi2c->XferCount; - } - - /* Enable the DMA channel */ - if (HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->RXDR, (uint32_t)hi2c->pBuffPtr, hi2c->XferSize) != HAL_OK) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_DMA); - } - else - { - /* Enable TC interrupts */ - I2C_Enable_IRQ(hi2c, I2C_XFER_RELOAD_IT); - } - } -} - -/** - * @brief DMA I2C slave receive process complete callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMASlaveReceiveCplt(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - uint32_t tmpoptions = hi2c->XferOptions; - - if ((__HAL_DMA_GET_COUNTER(hi2c->hdmarx) == 0U) && \ - (tmpoptions != I2C_NO_OPTION_FRAME)) - { - /* Disable DMA Request */ - hi2c->Instance->CR1 &= ~I2C_CR1_RXDMAEN; - - /* Call I2C Slave Sequential complete process */ - I2C_ITSlaveSeqCplt(hi2c); - } - else - { - /* No specific action, Master fully manage the generation of STOP condition */ - /* Mean that this generation can arrive at any time, at the end or during DMA process */ - /* So STOP condition should be manage through Interrupt treatment */ - } -} - -/** - * @brief DMA I2C communication error callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMAError(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - - /* Disable Acknowledge */ - hi2c->Instance->CR2 |= I2C_CR2_NACK; - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c, HAL_I2C_ERROR_DMA); -} - -/** - * @brief DMA I2C communication abort callback - * (To be called at end of DMA Abort procedure). - * @param hdma DMA handle. - * @retval None - */ -static void I2C_DMAAbort(DMA_HandleTypeDef *hdma) -{ - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */ - - /* Reset AbortCpltCallback */ - hi2c->hdmatx->XferAbortCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Check if come from abort from user */ - if (hi2c->State == HAL_I2C_STATE_ABORT) - { - hi2c->State = HAL_I2C_STATE_READY; - - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->AbortCpltCallback(hi2c); -#else - HAL_I2C_AbortCpltCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } - else - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ -#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) - hi2c->ErrorCallback(hi2c); -#else - HAL_I2C_ErrorCallback(hi2c); -#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ - } -} - -/** - * @brief This function handles I2C Communication Timeout. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Flag Specifies the I2C flag to check. - * @param Status The new Flag status (SET or RESET). - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart) -{ - while (__HAL_I2C_GET_FLAG(hi2c, Flag) == Status) - { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of TXIS flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnTXISFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) -{ - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TXIS) == RESET) - { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of STOP flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) -{ - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == RESET) - { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Check for the Timeout */ - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of RXNE flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) -{ - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == RESET) - { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c, Timeout, Tickstart) != HAL_OK) - { - return HAL_ERROR; - } - - /* Check if a STOPF is detected */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == SET) - { - /* Check if an RXNE is pending */ - /* Store Last receive data if any */ - if ((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == SET) && (hi2c->XferSize > 0U)) - { - /* Return HAL_OK */ - /* The Reading of data from RXDR will be done in caller function */ - return HAL_OK; - } - else - { - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - - /* Check for the Timeout */ - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - return HAL_OK; -} - -/** - * @brief This function handles Acknowledge failed detection during an I2C Communication. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) -{ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == SET) - { - /* Wait until STOP Flag is reset */ - /* AutoEnd should be initiate after AF */ - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == RESET) - { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - } - } - - /* Clear NACKF Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - /* Flush TX register */ - I2C_Flush_TXDR(hi2c); - - /* Clear Configuration Register 2 */ - I2C_RESET_CR2(hi2c); - - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - return HAL_OK; -} - -/** - * @brief Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set). - * @param hi2c I2C handle. - * @param DevAddress Specifies the slave address to be programmed. - * @param Size Specifies the number of bytes to be programmed. - * This parameter must be a value between 0 and 255. - * @param Mode New state of the I2C START condition generation. - * This parameter can be one of the following values: - * @arg @ref I2C_RELOAD_MODE Enable Reload mode . - * @arg @ref I2C_AUTOEND_MODE Enable Automatic end mode. - * @arg @ref I2C_SOFTEND_MODE Enable Software end mode. - * @param Request New state of the I2C START condition generation. - * This parameter can be one of the following values: - * @arg @ref I2C_NO_STARTSTOP Don't Generate stop and start condition. - * @arg @ref I2C_GENERATE_STOP Generate stop condition (Size should be set to 0). - * @arg @ref I2C_GENERATE_START_READ Generate Restart for read request. - * @arg @ref I2C_GENERATE_START_WRITE Generate Restart for write request. - * @retval None - */ -static void I2C_TransferConfig(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request) -{ - /* Check the parameters */ - assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); - assert_param(IS_TRANSFER_MODE(Mode)); - assert_param(IS_TRANSFER_REQUEST(Request)); - - /* update CR2 register */ - MODIFY_REG(hi2c->Instance->CR2, ((I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | (I2C_CR2_RD_WRN & (uint32_t)(Request >> (31U - I2C_CR2_RD_WRN_Pos))) | I2C_CR2_START | I2C_CR2_STOP)), \ - (uint32_t)(((uint32_t)DevAddress & I2C_CR2_SADD) | (((uint32_t)Size << I2C_CR2_NBYTES_Pos) & I2C_CR2_NBYTES) | (uint32_t)Mode | (uint32_t)Request)); -} - -/** - * @brief Manage the enabling of Interrupts. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param InterruptRequest Value of @ref I2C_Interrupt_configuration_definition. - * @retval None - */ -static void I2C_Enable_IRQ(I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest) -{ - uint32_t tmpisr = 0U; - - if ((hi2c->XferISR == I2C_Master_ISR_DMA) || \ - (hi2c->XferISR == I2C_Slave_ISR_DMA)) - { - if ((InterruptRequest & I2C_XFER_LISTEN_IT) == I2C_XFER_LISTEN_IT) - { - /* Enable ERR, STOP, NACK and ADDR interrupts */ - tmpisr |= I2C_IT_ADDRI | I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_ERRI; - } - - if ((InterruptRequest & I2C_XFER_ERROR_IT) == I2C_XFER_ERROR_IT) - { - /* Enable ERR and NACK interrupts */ - tmpisr |= I2C_IT_ERRI | I2C_IT_NACKI; - } - - if ((InterruptRequest & I2C_XFER_CPLT_IT) == I2C_XFER_CPLT_IT) - { - /* Enable STOP interrupts */ - tmpisr |= I2C_IT_STOPI; - } - - if ((InterruptRequest & I2C_XFER_RELOAD_IT) == I2C_XFER_RELOAD_IT) - { - /* Enable TC interrupts */ - tmpisr |= I2C_IT_TCI; - } - } - else - { - if ((InterruptRequest & I2C_XFER_LISTEN_IT) == I2C_XFER_LISTEN_IT) - { - /* Enable ERR, STOP, NACK, and ADDR interrupts */ - tmpisr |= I2C_IT_ADDRI | I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_ERRI; - } - - if ((InterruptRequest & I2C_XFER_TX_IT) == I2C_XFER_TX_IT) - { - /* Enable ERR, TC, STOP, NACK and RXI interrupts */ - tmpisr |= I2C_IT_ERRI | I2C_IT_TCI | I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_TXI; - } - - if ((InterruptRequest & I2C_XFER_RX_IT) == I2C_XFER_RX_IT) - { - /* Enable ERR, TC, STOP, NACK and TXI interrupts */ - tmpisr |= I2C_IT_ERRI | I2C_IT_TCI | I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_RXI; - } - - else if ((InterruptRequest & I2C_XFER_CPLT_IT) == I2C_XFER_CPLT_IT) - { - /* Enable STOP interrupts */ - tmpisr |= I2C_IT_STOPI; - } - } - - /* Enable interrupts only at the end */ - /* to avoid the risk of I2C interrupt handle execution before */ - /* all interrupts requested done */ - __HAL_I2C_ENABLE_IT(hi2c, tmpisr); -} - -/** - * @brief Manage the disabling of Interrupts. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param InterruptRequest Value of @ref I2C_Interrupt_configuration_definition. - * @retval None - */ -static void I2C_Disable_IRQ(I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest) -{ - uint32_t tmpisr = 0U; - - if ((InterruptRequest & I2C_XFER_TX_IT) == I2C_XFER_TX_IT) - { - /* Disable TC and TXI interrupts */ - tmpisr |= I2C_IT_TCI | I2C_IT_TXI; - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) != (uint32_t)HAL_I2C_STATE_LISTEN) - { - /* Disable NACK and STOP interrupts */ - tmpisr |= I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_ERRI; - } - } - - if ((InterruptRequest & I2C_XFER_RX_IT) == I2C_XFER_RX_IT) - { - /* Disable TC and RXI interrupts */ - tmpisr |= I2C_IT_TCI | I2C_IT_RXI; - - if (((uint32_t)hi2c->State & (uint32_t)HAL_I2C_STATE_LISTEN) != (uint32_t)HAL_I2C_STATE_LISTEN) - { - /* Disable NACK and STOP interrupts */ - tmpisr |= I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_ERRI; - } - } - - if ((InterruptRequest & I2C_XFER_LISTEN_IT) == I2C_XFER_LISTEN_IT) - { - /* Disable ADDR, NACK and STOP interrupts */ - tmpisr |= I2C_IT_ADDRI | I2C_IT_STOPI | I2C_IT_NACKI | I2C_IT_ERRI; - } - - if ((InterruptRequest & I2C_XFER_ERROR_IT) == I2C_XFER_ERROR_IT) - { - /* Enable ERR and NACK interrupts */ - tmpisr |= I2C_IT_ERRI | I2C_IT_NACKI; - } - - if ((InterruptRequest & I2C_XFER_CPLT_IT) == I2C_XFER_CPLT_IT) - { - /* Enable STOP interrupts */ - tmpisr |= I2C_IT_STOPI; - } - - if ((InterruptRequest & I2C_XFER_RELOAD_IT) == I2C_XFER_RELOAD_IT) - { - /* Enable TC interrupts */ - tmpisr |= I2C_IT_TCI; - } - - /* Disable interrupts only at the end */ - /* to avoid a breaking situation like at "t" time */ - /* all disable interrupts request are not done */ - __HAL_I2C_DISABLE_IT(hi2c, tmpisr); -} - -/** - * @brief Convert I2Cx OTHER_xxx XferOptions to functionnal XferOptions. - * @param hi2c I2C handle. - * @retval None - */ -static void I2C_ConvertOtherXferOptions(I2C_HandleTypeDef *hi2c) -{ - /* if user set XferOptions to I2C_OTHER_FRAME */ - /* it request implicitly to generate a restart condition */ - /* set XferOptions to I2C_FIRST_FRAME */ - if (hi2c->XferOptions == I2C_OTHER_FRAME) - { - hi2c->XferOptions = I2C_FIRST_FRAME; - } - /* else if user set XferOptions to I2C_OTHER_AND_LAST_FRAME */ - /* it request implicitly to generate a restart condition */ - /* then generate a stop condition at the end of transfer */ - /* set XferOptions to I2C_FIRST_AND_LAST_FRAME */ - else if (hi2c->XferOptions == I2C_OTHER_AND_LAST_FRAME) - { - hi2c->XferOptions = I2C_FIRST_AND_LAST_FRAME; - } - else - { - /* Nothing to do */ - } -} - -/** - * @} - */ - -#endif /* HAL_I2C_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit