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Diffstat (limited to 'lib/hal-stm32f0/source/stm32f0xx_hal_smbus.c')
| -rw-r--r-- | lib/hal-stm32f0/source/stm32f0xx_hal_smbus.c | 2172 |
1 files changed, 0 insertions, 2172 deletions
diff --git a/lib/hal-stm32f0/source/stm32f0xx_hal_smbus.c b/lib/hal-stm32f0/source/stm32f0xx_hal_smbus.c deleted file mode 100644 index c693b6e8..00000000 --- a/lib/hal-stm32f0/source/stm32f0xx_hal_smbus.c +++ /dev/null @@ -1,2172 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_hal_smbus.c - * @author MCD Application Team - * @brief SMBUS HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the System Management Bus (SMBus) peripheral, - * based on I2C principles of operation : - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral State and Errors functions - * - @verbatim - ============================================================================== - ##### How to use this driver ##### - ============================================================================== - [..] - The SMBUS HAL driver can be used as follows: - - (#) Declare a SMBUS_HandleTypeDef handle structure, for example: - SMBUS_HandleTypeDef hsmbus; - - (#)Initialize the SMBUS low level resources by implementing the HAL_SMBUS_MspInit() API: - (##) Enable the SMBUSx interface clock - (##) SMBUS pins configuration - (+++) Enable the clock for the SMBUS GPIOs - (+++) Configure SMBUS pins as alternate function open-drain - (##) NVIC configuration if you need to use interrupt process - (+++) Configure the SMBUSx interrupt priority - (+++) Enable the NVIC SMBUS IRQ Channel - - (#) Configure the Communication Clock Timing, Bus Timeout, Own Address1, Master Addressing mode, - Dual Addressing mode, Own Address2, Own Address2 Mask, General call, Nostretch mode, - Peripheral mode and Packet Error Check mode in the hsmbus Init structure. - - (#) Initialize the SMBUS registers by calling the HAL_SMBUS_Init() API: - (++) These API's configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) - by calling the customized HAL_SMBUS_MspInit(&hsmbus) API. - - (#) To check if target device is ready for communication, use the function HAL_SMBUS_IsDeviceReady() - - (#) For SMBUS IO operations, only one mode of operations is available within this driver - - *** Interrupt mode IO operation *** - =================================== - [..] - (+) Transmit in master/host SMBUS mode an amount of data in non-blocking mode using HAL_SMBUS_Master_Transmit_IT() - (++) At transmission end of transfer HAL_SMBUS_MasterTxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_MasterTxCpltCallback() - (+) Receive in master/host SMBUS mode an amount of data in non-blocking mode using HAL_SMBUS_Master_Receive_IT() - (++) At reception end of transfer HAL_SMBUS_MasterRxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_MasterRxCpltCallback() - (+) Abort a master/host SMBUS process communication with Interrupt using HAL_SMBUS_Master_Abort_IT() - (++) The associated previous transfer callback is called at the end of abort process - (++) mean HAL_SMBUS_MasterTxCpltCallback() in case of previous state was master transmit - (++) mean HAL_SMBUS_MasterRxCpltCallback() in case of previous state was master receive - (+) Enable/disable the Address listen mode in slave/device or host/slave SMBUS mode - using HAL_SMBUS_EnableListen_IT() HAL_SMBUS_DisableListen_IT() - (++) When address slave/device SMBUS match, HAL_SMBUS_AddrCallback() is executed and user can - add his own code to check the Address Match Code and the transmission direction request by master/host (Write/Read). - (++) At Listen mode end HAL_SMBUS_ListenCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_ListenCpltCallback() - (+) Transmit in slave/device SMBUS mode an amount of data in non-blocking mode using HAL_SMBUS_Slave_Transmit_IT() - (++) At transmission end of transfer HAL_SMBUS_SlaveTxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_SlaveTxCpltCallback() - (+) Receive in slave/device SMBUS mode an amount of data in non-blocking mode using HAL_SMBUS_Slave_Receive_IT() - (++) At reception end of transfer HAL_SMBUS_SlaveRxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_SlaveRxCpltCallback() - (+) Enable/Disable the SMBUS alert mode using HAL_SMBUS_EnableAlert_IT() HAL_SMBUS_DisableAlert_IT() - (++) When SMBUS Alert is generated HAL_SMBUS_ErrorCallback() is executed and user can - add his own code by customization of function pointer HAL_SMBUS_ErrorCallback() - to check the Alert Error Code using function HAL_SMBUS_GetError() - (+) Get HAL state machine or error values using HAL_SMBUS_GetState() or HAL_SMBUS_GetError() - (+) In case of transfer Error, HAL_SMBUS_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_SMBUS_ErrorCallback() - to check the Error Code using function HAL_SMBUS_GetError() - - *** SMBUS HAL driver macros list *** - ================================== - [..] - Below the list of most used macros in SMBUS HAL driver. - - (+) __HAL_SMBUS_ENABLE: Enable the SMBUS peripheral - (+) __HAL_SMBUS_DISABLE: Disable the SMBUS peripheral - (+) __HAL_SMBUS_GET_FLAG: Check whether the specified SMBUS flag is set or not - (+) __HAL_SMBUS_CLEAR_FLAG: Clear the specified SMBUS pending flag - (+) __HAL_SMBUS_ENABLE_IT: Enable the specified SMBUS interrupt - (+) __HAL_SMBUS_DISABLE_IT: Disable the specified SMBUS interrupt - - [..] - (@) You can refer to the SMBUS HAL driver header file for more useful macros - - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f0xx_hal.h" - -/** @addtogroup STM32F0xx_HAL_Driver - * @{ - */ - -/** @defgroup SMBUS SMBUS - * @brief SMBUS HAL module driver - * @{ - */ - -#ifdef HAL_SMBUS_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private constants ---------------------------------------------------------*/ -/** @defgroup SMBUS_Private_Define SMBUS Private Constants - * @{ - */ -#define TIMING_CLEAR_MASK (0xF0FFFFFFU) /*!< SMBUS TIMING clear register Mask */ -#define HAL_TIMEOUT_ADDR (10000U) /*!< 10 s */ -#define HAL_TIMEOUT_BUSY (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_DIR (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_RXNE (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_STOPF (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_TC (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_TCR (25U) /*!< 25 ms */ -#define HAL_TIMEOUT_TXIS (25U) /*!< 25 ms */ -#define MAX_NBYTE_SIZE 255U -/** - * @} - */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @addtogroup SMBUS_Private_Functions SMBUS Private Functions - * @{ - */ -static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout); - -static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest); -static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest); -static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus); -static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus); - -static void SMBUS_ConvertOtherXferOptions(SMBUS_HandleTypeDef *hsmbus); - -static void SMBUS_ITErrorHandler(SMBUS_HandleTypeDef *hsmbus); - -static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request); -/** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ - -/** @defgroup SMBUS_Exported_Functions SMBUS Exported Functions - * @{ - */ - -/** @defgroup SMBUS_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 SMBUSx peripheral: - - (+) User must Implement HAL_SMBUS_MspInit() function in which he configures - all related peripherals resources (CLOCK, GPIO, IT and NVIC ). - - (+) Call the function HAL_SMBUS_Init() to configure the selected device with - the selected configuration: - (++) Clock Timing - (++) Bus Timeout - (++) Analog Filer mode - (++) Own Address 1 - (++) Addressing mode (Master, Slave) - (++) Dual Addressing mode - (++) Own Address 2 - (++) Own Address 2 Mask - (++) General call mode - (++) Nostretch mode - (++) Packet Error Check mode - (++) Peripheral mode - - - (+) Call the function HAL_SMBUS_DeInit() to restore the default configuration - of the selected SMBUSx peripheral. - - (+) Enable/Disable Analog/Digital filters with HAL_SMBUS_ConfigAnalogFilter() and - HAL_SMBUS_ConfigDigitalFilter(). - -@endverbatim - * @{ - */ - -/** - * @brief Initialize the SMBUS according to the specified parameters - * in the SMBUS_InitTypeDef and initialize the associated handle. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Init(SMBUS_HandleTypeDef *hsmbus) -{ - /* Check the SMBUS handle allocation */ - if (hsmbus == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance)); - assert_param(IS_SMBUS_ANALOG_FILTER(hsmbus->Init.AnalogFilter)); - assert_param(IS_SMBUS_OWN_ADDRESS1(hsmbus->Init.OwnAddress1)); - assert_param(IS_SMBUS_ADDRESSING_MODE(hsmbus->Init.AddressingMode)); - assert_param(IS_SMBUS_DUAL_ADDRESS(hsmbus->Init.DualAddressMode)); - assert_param(IS_SMBUS_OWN_ADDRESS2(hsmbus->Init.OwnAddress2)); - assert_param(IS_SMBUS_OWN_ADDRESS2_MASK(hsmbus->Init.OwnAddress2Masks)); - assert_param(IS_SMBUS_GENERAL_CALL(hsmbus->Init.GeneralCallMode)); - assert_param(IS_SMBUS_NO_STRETCH(hsmbus->Init.NoStretchMode)); - assert_param(IS_SMBUS_PEC(hsmbus->Init.PacketErrorCheckMode)); - assert_param(IS_SMBUS_PERIPHERAL_MODE(hsmbus->Init.PeripheralMode)); - - if (hsmbus->State == HAL_SMBUS_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - hsmbus->Lock = HAL_UNLOCKED; - - /* Init the low level hardware : GPIO, CLOCK, NVIC */ - HAL_SMBUS_MspInit(hsmbus); - } - - hsmbus->State = HAL_SMBUS_STATE_BUSY; - - /* Disable the selected SMBUS peripheral */ - __HAL_SMBUS_DISABLE(hsmbus); - - /*---------------------------- SMBUSx TIMINGR Configuration ------------------------*/ - /* Configure SMBUSx: Frequency range */ - hsmbus->Instance->TIMINGR = hsmbus->Init.Timing & TIMING_CLEAR_MASK; - - /*---------------------------- SMBUSx TIMEOUTR Configuration ------------------------*/ - /* Configure SMBUSx: Bus Timeout */ - hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TIMOUTEN; - hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TEXTEN; - hsmbus->Instance->TIMEOUTR = hsmbus->Init.SMBusTimeout; - - /*---------------------------- SMBUSx OAR1 Configuration -----------------------*/ - /* Configure SMBUSx: Own Address1 and ack own address1 mode */ - hsmbus->Instance->OAR1 &= ~I2C_OAR1_OA1EN; - - if (hsmbus->Init.OwnAddress1 != 0U) - { - if (hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_7BIT) - { - hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | hsmbus->Init.OwnAddress1); - } - else /* SMBUS_ADDRESSINGMODE_10BIT */ - { - hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | I2C_OAR1_OA1MODE | hsmbus->Init.OwnAddress1); - } - } - - /*---------------------------- SMBUSx CR2 Configuration ------------------------*/ - /* Configure SMBUSx: Addressing Master mode */ - if (hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_10BIT) - { - hsmbus->Instance->CR2 = (I2C_CR2_ADD10); - } - /* Enable the AUTOEND by default, and enable NACK (should be disable only during Slave process) */ - /* AUTOEND and NACK bit will be manage during Transfer process */ - hsmbus->Instance->CR2 |= (I2C_CR2_AUTOEND | I2C_CR2_NACK); - - /*---------------------------- SMBUSx OAR2 Configuration -----------------------*/ - /* Configure SMBUSx: Dual mode and Own Address2 */ - hsmbus->Instance->OAR2 = (hsmbus->Init.DualAddressMode | hsmbus->Init.OwnAddress2 | (hsmbus->Init.OwnAddress2Masks << 8U)); - - /*---------------------------- SMBUSx CR1 Configuration ------------------------*/ - /* Configure SMBUSx: Generalcall and NoStretch mode */ - hsmbus->Instance->CR1 = (hsmbus->Init.GeneralCallMode | hsmbus->Init.NoStretchMode | hsmbus->Init.PacketErrorCheckMode | hsmbus->Init.PeripheralMode | hsmbus->Init.AnalogFilter); - - /* Enable Slave Byte Control only in case of Packet Error Check is enabled and SMBUS Peripheral is set in Slave mode */ - if ((hsmbus->Init.PacketErrorCheckMode == SMBUS_PEC_ENABLE) - && ((hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE) || (hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE_ARP))) - { - hsmbus->Instance->CR1 |= I2C_CR1_SBC; - } - - /* Enable the selected SMBUS peripheral */ - __HAL_SMBUS_ENABLE(hsmbus); - - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - hsmbus->PreviousState = HAL_SMBUS_STATE_READY; - hsmbus->State = HAL_SMBUS_STATE_READY; - - return HAL_OK; -} - -/** - * @brief DeInitialize the SMBUS peripheral. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_DeInit(SMBUS_HandleTypeDef *hsmbus) -{ - /* Check the SMBUS handle allocation */ - if (hsmbus == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance)); - - hsmbus->State = HAL_SMBUS_STATE_BUSY; - - /* Disable the SMBUS Peripheral Clock */ - __HAL_SMBUS_DISABLE(hsmbus); - - /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ - HAL_SMBUS_MspDeInit(hsmbus); - - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - hsmbus->PreviousState = HAL_SMBUS_STATE_RESET; - hsmbus->State = HAL_SMBUS_STATE_RESET; - - /* Release Lock */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; -} - -/** - * @brief Initialize the SMBUS MSP. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_MspInit(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_MspInit could be implemented in the user file - */ -} - -/** - * @brief DeInitialize the SMBUS MSP. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_MspDeInit(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_MspDeInit could be implemented in the user file - */ -} - -/** - * @brief Configure Analog noise filter. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param AnalogFilter This parameter can be one of the following values: - * @arg @ref SMBUS_ANALOGFILTER_ENABLE - * @arg @ref SMBUS_ANALOGFILTER_DISABLE - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_ConfigAnalogFilter(SMBUS_HandleTypeDef *hsmbus, uint32_t AnalogFilter) -{ - /* Check the parameters */ - assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance)); - assert_param(IS_SMBUS_ANALOG_FILTER(AnalogFilter)); - - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_BUSY; - - /* Disable the selected SMBUS peripheral */ - __HAL_SMBUS_DISABLE(hsmbus); - - /* Reset ANOFF bit */ - hsmbus->Instance->CR1 &= ~(I2C_CR1_ANFOFF); - - /* Set analog filter bit*/ - hsmbus->Instance->CR1 |= AnalogFilter; - - __HAL_SMBUS_ENABLE(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Configure Digital noise filter. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_ConfigDigitalFilter(SMBUS_HandleTypeDef *hsmbus, uint32_t DigitalFilter) -{ - uint32_t tmpreg = 0U; - - /* Check the parameters */ - assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance)); - assert_param(IS_SMBUS_DIGITAL_FILTER(DigitalFilter)); - - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_BUSY; - - /* Disable the selected SMBUS peripheral */ - __HAL_SMBUS_DISABLE(hsmbus); - - /* Get the old register value */ - tmpreg = hsmbus->Instance->CR1; - - /* Reset I2C DNF bits [11:8] */ - tmpreg &= ~(I2C_CR1_DNF); - - /* Set I2Cx DNF coefficient */ - tmpreg |= DigitalFilter << I2C_CR1_DNF_Pos; - - /* Store the new register value */ - hsmbus->Instance->CR1 = tmpreg; - - __HAL_SMBUS_ENABLE(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @} - */ - -/** @defgroup SMBUS_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 SMBUS data - transfers. - - (#) Blocking mode function to check if device is ready for usage is : - (++) HAL_SMBUS_IsDeviceReady() - - (#) There is only one mode of transfer: - (++) Non-Blocking mode : The communication is performed using Interrupts. - These functions return the status of the transfer startup. - The end of the data processing will be indicated through the - dedicated SMBUS IRQ when using Interrupt mode. - - (#) Non-Blocking mode functions with Interrupt are : - (++) HAL_SMBUS_Master_Transmit_IT() - (++) HAL_SMBUS_Master_Receive_IT() - (++) HAL_SMBUS_Slave_Transmit_IT() - (++) HAL_SMBUS_Slave_Receive_IT() - (++) HAL_SMBUS_EnableListen_IT() or alias HAL_SMBUS_EnableListen_IT() - (++) HAL_SMBUS_DisableListen_IT() - (++) HAL_SMBUS_EnableAlert_IT() - (++) HAL_SMBUS_DisableAlert_IT() - - (#) A set of Transfer Complete Callbacks are provided in non-Blocking mode: - (++) HAL_SMBUS_MasterTxCpltCallback() - (++) HAL_SMBUS_MasterRxCpltCallback() - (++) HAL_SMBUS_SlaveTxCpltCallback() - (++) HAL_SMBUS_SlaveRxCpltCallback() - (++) HAL_SMBUS_AddrCallback() - (++) HAL_SMBUS_ListenCpltCallback() - (++) HAL_SMBUS_ErrorCallback() - -@endverbatim - * @{ - */ - -/** - * @brief Transmit in master/host SMBUS mode an amount of data in non-blocking mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shift at right before call interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref SMBUS_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Master_Transmit_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX; - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - /* Prepare transfer parameters */ - hsmbus->pBuffPtr = pData; - hsmbus->XferCount = Size; - hsmbus->XferOptions = XferOptions; - - /* In case of Quick command, remove autoend mode */ - /* Manage the stop generation by software */ - if (hsmbus->pBuffPtr == NULL) - { - hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE; - } - - if (Size > MAX_NBYTE_SIZE) - { - hsmbus->XferSize = MAX_NBYTE_SIZE; - } - else - { - hsmbus->XferSize = Size; - } - - /* Send Slave Address */ - /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */ - if ((hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount)) - { - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_WRITE); - } - else - { - /* If transfer direction not change, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX) && (IS_SMBUS_TRANSFER_OTHER_OPTIONS_REQUEST(hsmbus->XferOptions) == 0)) - { - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - } - /* Else transfer direction change, so generate Restart with new transfer direction */ - else - { - /* Convert OTHER_xxx XferOptions if any */ - SMBUS_ConvertOtherXferOptions(hsmbus); - - /* Handle Transfer */ - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_WRITE); - } - - /* If PEC mode is enable, size to transmit manage by SW part should be Size-1 byte, corresponding to PEC byte */ - /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */ - if (SMBUS_GET_PEC_MODE(hsmbus) != RESET) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Note : The SMBUS interrupts must be enabled after unlocking current process - to avoid the risk of SMBUS interrupt handle execution before current - process unlock */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive in master/host SMBUS mode an amount of data in non-blocking mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shift at right before call interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref SMBUS_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Master_Receive_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX; - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - - /* Prepare transfer parameters */ - hsmbus->pBuffPtr = pData; - hsmbus->XferCount = Size; - hsmbus->XferOptions = XferOptions; - - /* In case of Quick command, remove autoend mode */ - /* Manage the stop generation by software */ - if (hsmbus->pBuffPtr == NULL) - { - hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE; - } - - if (Size > MAX_NBYTE_SIZE) - { - hsmbus->XferSize = MAX_NBYTE_SIZE; - } - else - { - hsmbus->XferSize = Size; - } - - /* Send Slave Address */ - /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */ - if ((hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount)) - { - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_READ); - } - else - { - /* If transfer direction not change, do not generate Restart Condition */ - /* Mean Previous state is same as current state */ - if ((hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX) && (IS_SMBUS_TRANSFER_OTHER_OPTIONS_REQUEST(hsmbus->XferOptions) == 0)) - { - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - } - /* Else transfer direction change, so generate Restart with new transfer direction */ - else - { - /* Convert OTHER_xxx XferOptions if any */ - SMBUS_ConvertOtherXferOptions(hsmbus); - - /* Handle Transfer */ - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_READ); - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Note : The SMBUS interrupts must be enabled after unlocking current process - to avoid the risk of SMBUS interrupt handle execution before current - process unlock */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Abort a master/host SMBUS process communication with Interrupt. - * @note This abort can be called only if state is ready - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shift at right before call interface - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Master_Abort_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress) -{ - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - /* Process Locked */ - __HAL_LOCK(hsmbus); - - /* Keep the same state as previous */ - /* to perform as well the call of the corresponding end of transfer callback */ - if (hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX; - } - else if (hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX; - } - else - { - /* Wrong usage of abort function */ - /* This function should be used only in case of abort monitored by master device */ - return HAL_ERROR; - } - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - - /* Set NBYTES to 1 to generate a dummy read on SMBUS peripheral */ - /* Set AUTOEND mode, this will generate a NACK then STOP condition to abort the current transfer */ - SMBUS_TransferConfig(hsmbus, DevAddress, 1U, SMBUS_AUTOEND_MODE, SMBUS_NO_STARTSTOP); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Note : The SMBUS interrupts must be enabled after unlocking current process - to avoid the risk of SMBUS interrupt handle execution before current - process unlock */ - if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX); - } - else if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in slave/device SMBUS mode an amount of data in non-blocking mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref SMBUS_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Slave_Transmit_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hsmbus->State == HAL_SMBUS_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_TX); - - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_TX; - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - - /* Set SBC bit to manage Acknowledge at each bit */ - hsmbus->Instance->CR1 |= I2C_CR1_SBC; - - /* Enable Address Acknowledge */ - hsmbus->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hsmbus->pBuffPtr = pData; - hsmbus->XferCount = Size; - hsmbus->XferOptions = XferOptions; - - /* Convert OTHER_xxx XferOptions if any */ - SMBUS_ConvertOtherXferOptions(hsmbus); - - if (Size > MAX_NBYTE_SIZE) - { - hsmbus->XferSize = MAX_NBYTE_SIZE; - } - else - { - hsmbus->XferSize = Size; - } - - /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */ - if ((hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount)) - { - SMBUS_TransferConfig(hsmbus, 0U, hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP); - } - else - { - /* Set NBYTE to transmit */ - SMBUS_TransferConfig(hsmbus, 0U, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - - /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */ - /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */ - if (SMBUS_GET_PEC_MODE(hsmbus) != RESET) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the HOST */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ADDR); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Note : The SMBUS interrupts must be enabled after unlocking current process - to avoid the risk of SMBUS interrupt handle execution before current - process unlock */ - /* REnable ADDR interrupt */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX | SMBUS_IT_ADDR); - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Receive in slave/device SMBUS mode an amount of data in non-blocking mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref SMBUS_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_Slave_Receive_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions) -{ - /* Check the parameters */ - assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hsmbus->State == HAL_SMBUS_STATE_LISTEN) - { - if ((pData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* Disable Interrupts, to prevent preemption during treatment in case of multicall */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_RX); - - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_RX; - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - - /* Set SBC bit to manage Acknowledge at each bit */ - hsmbus->Instance->CR1 |= I2C_CR1_SBC; - - /* Enable Address Acknowledge */ - hsmbus->Instance->CR2 &= ~I2C_CR2_NACK; - - /* Prepare transfer parameters */ - hsmbus->pBuffPtr = pData; - hsmbus->XferSize = Size; - hsmbus->XferCount = Size; - hsmbus->XferOptions = XferOptions; - - /* Convert OTHER_xxx XferOptions if any */ - SMBUS_ConvertOtherXferOptions(hsmbus); - - /* Set NBYTE to receive */ - /* If XferSize equal "1", or XferSize equal "2" with PEC requested (mean 1 data byte + 1 PEC byte */ - /* no need to set RELOAD bit mode, a ACK will be automatically generated in that case */ - /* else need to set RELOAD bit mode to generate an automatic ACK at each byte Received */ - /* This RELOAD bit will be reset for last BYTE to be receive in SMBUS_Slave_ISR */ - if ((hsmbus->XferSize == 1U) || ((hsmbus->XferSize == 2U) && (SMBUS_GET_PEC_MODE(hsmbus) != RESET))) - { - SMBUS_TransferConfig(hsmbus, 0U, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - } - else - { - SMBUS_TransferConfig(hsmbus, 0U, 1U, hsmbus->XferOptions | SMBUS_RELOAD_MODE, SMBUS_NO_STARTSTOP); - } - - /* Clear ADDR flag after prepare the transfer parameters */ - /* This action will generate an acknowledge to the HOST */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ADDR); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Note : The SMBUS interrupts must be enabled after unlocking current process - to avoid the risk of SMBUS interrupt handle execution before current - process unlock */ - /* REnable ADDR interrupt */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_ADDR); - - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief Enable the Address listen mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_EnableListen_IT(SMBUS_HandleTypeDef *hsmbus) -{ - hsmbus->State = HAL_SMBUS_STATE_LISTEN; - - /* Enable the Address Match interrupt */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ADDR); - - return HAL_OK; -} - -/** - * @brief Disable the Address listen mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_DisableListen_IT(SMBUS_HandleTypeDef *hsmbus) -{ - /* Disable Address listen mode only if a transfer is not ongoing */ - if (hsmbus->State == HAL_SMBUS_STATE_LISTEN) - { - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Disable the Address Match interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Enable the SMBUS alert mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUSx peripheral. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_EnableAlert_IT(SMBUS_HandleTypeDef *hsmbus) -{ - /* Enable SMBus alert */ - hsmbus->Instance->CR1 |= I2C_CR1_ALERTEN; - - /* Clear ALERT flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT); - - /* Enable Alert Interrupt */ - SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ALERT); - - return HAL_OK; -} -/** - * @brief Disable the SMBUS alert mode with Interrupt. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUSx peripheral. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_DisableAlert_IT(SMBUS_HandleTypeDef *hsmbus) -{ - /* Enable SMBus alert */ - hsmbus->Instance->CR1 &= ~I2C_CR1_ALERTEN; - - /* Disable Alert Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ALERT); - - return HAL_OK; -} - -/** - * @brief Check if target device is ready for communication. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shift at right before call interface - * @param Trials Number of trials - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SMBUS_IsDeviceReady(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout) -{ - uint32_t tickstart = 0U; - - __IO uint32_t SMBUS_Trials = 0U; - - if (hsmbus->State == HAL_SMBUS_STATE_READY) - { - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_BUSY) != RESET) - { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hsmbus); - - hsmbus->State = HAL_SMBUS_STATE_BUSY; - hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE; - - do - { - /* Generate Start */ - hsmbus->Instance->CR2 = SMBUS_GENERATE_START(hsmbus->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(); - while ((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) == RESET) && (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) == RESET) && (hsmbus->State != HAL_SMBUS_STATE_TIMEOUT)) - { - if (Timeout != HAL_MAX_DELAY) - { - if ((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) - { - /* Device is ready */ - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - return HAL_TIMEOUT; - } - } - } - - /* Check if the NACKF flag has not been set */ - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) == RESET) - { - /* Wait until STOPF flag is reset */ - if (SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* Clear STOP Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - - /* Device is ready */ - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; - } - else - { - /* Wait until STOPF flag is reset */ - if (SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* Clear NACK Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF); - - /* Clear STOP Flag, auto generated with autoend*/ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - } - - /* Check if the maximum allowed number of trials has been reached */ - if (SMBUS_Trials++ == Trials) - { - /* Generate Stop */ - hsmbus->Instance->CR2 |= I2C_CR2_STOP; - - /* Wait until STOPF flag is reset */ - if (SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* Clear STOP Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - } - } - while (SMBUS_Trials < Trials); - - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_TIMEOUT; - } - else - { - return HAL_BUSY; - } -} -/** - * @} - */ - -/** @defgroup SMBUS_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks - * @{ - */ - -/** - * @brief Handle SMBUS event interrupt request. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -void HAL_SMBUS_EV_IRQHandler(SMBUS_HandleTypeDef *hsmbus) -{ - uint32_t tmpisrvalue = 0U; - - /* Use a local variable to store the current ISR flags */ - /* This action will avoid a wrong treatment due to ISR flags change during interrupt handler */ - tmpisrvalue = SMBUS_GET_ISR_REG(hsmbus); - - /* SMBUS in mode Transmitter ---------------------------------------------------*/ - if (((SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TXIS) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TCR) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TC) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET)) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, (SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_TXI)) != RESET)) - { - /* Slave mode selected */ - if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX) - { - SMBUS_Slave_ISR(hsmbus); - } - /* Master mode selected */ - else if ((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_TX) == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - SMBUS_Master_ISR(hsmbus); - } - } - - /* SMBUS in mode Receiver ----------------------------------------------------*/ - if (((SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_RXNE) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TCR) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TC) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET)) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, (SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_RXI)) != RESET)) - { - /* Slave mode selected */ - if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX) - { - SMBUS_Slave_ISR(hsmbus); - } - /* Master mode selected */ - else if ((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_RX) == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - SMBUS_Master_ISR(hsmbus); - } - } - - /* SMBUS in mode Listener Only --------------------------------------------------*/ - if (((SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_ADDR) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET)) - && ((__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ADDRI) != RESET) || (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_STOPI) != RESET) || (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_NACKI) != RESET))) - { - if (hsmbus->State == HAL_SMBUS_STATE_LISTEN) - { - SMBUS_Slave_ISR(hsmbus); - } - } -} - -/** - * @brief Handle SMBUS error interrupt request. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -void HAL_SMBUS_ER_IRQHandler(SMBUS_HandleTypeDef *hsmbus) -{ - SMBUS_ITErrorHandler(hsmbus); -} - -/** - * @brief Master Tx Transfer completed callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_MasterTxCpltCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_MasterTxCpltCallback() could be implemented in the user file - */ -} - -/** - * @brief Master Rx Transfer completed callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_MasterRxCpltCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_MasterRxCpltCallback() could be implemented in the user file - */ -} - -/** @brief Slave Tx Transfer completed callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_SlaveTxCpltCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_SlaveTxCpltCallback() could be implemented in the user file - */ -} - -/** - * @brief Slave Rx Transfer completed callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_SlaveRxCpltCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_SlaveRxCpltCallback() could be implemented in the user file - */ -} - -/** - * @brief Slave Address Match callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param TransferDirection Master request Transfer Direction (Write/Read) - * @param AddrMatchCode Address Match Code - * @retval None - */ -__weak void HAL_SMBUS_AddrCallback(SMBUS_HandleTypeDef *hsmbus, uint8_t TransferDirection, uint16_t AddrMatchCode) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - UNUSED(TransferDirection); - UNUSED(AddrMatchCode); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_AddrCallback() could be implemented in the user file - */ -} - -/** - * @brief Listen Complete callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_ListenCpltCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_ListenCpltCallback() could be implemented in the user file - */ -} - -/** - * @brief SMBUS error callback. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval None - */ -__weak void HAL_SMBUS_ErrorCallback(SMBUS_HandleTypeDef *hsmbus) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hsmbus); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SMBUS_ErrorCallback() could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup SMBUS_Exported_Functions_Group3 Peripheral State and Errors functions - * @brief Peripheral State and Errors functions - * -@verbatim - =============================================================================== - ##### Peripheral State and Errors functions ##### - =============================================================================== - [..] - This subsection permits to get in run-time the status of the peripheral - and the data flow. - -@endverbatim - * @{ - */ - -/** - * @brief Return the SMBUS handle state. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL state - */ -uint32_t HAL_SMBUS_GetState(SMBUS_HandleTypeDef *hsmbus) -{ - /* Return SMBUS handle state */ - return hsmbus->State; -} - -/** -* @brief Return the SMBUS error code. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. -* @retval SMBUS Error Code -*/ -uint32_t HAL_SMBUS_GetError(SMBUS_HandleTypeDef *hsmbus) -{ - return hsmbus->ErrorCode; -} - -/** - * @} - */ - -/** - * @} - */ - -/** @addtogroup SMBUS_Private_Functions SMBUS Private Functions - * @brief Data transfers Private functions - * @{ - */ - -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Master Mode. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus) -{ - uint16_t DevAddress; - - /* Process Locked */ - __HAL_LOCK(hsmbus); - - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET) - { - /* Clear NACK Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF); - - /* Set corresponding Error Code */ - /* No need to generate STOP, it is automatically done */ - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call the Error callback to inform upper layer */ - HAL_SMBUS_ErrorCallback(hsmbus); - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET) - { - /* Check and treat errors if errors occurs during STOP process */ - SMBUS_ITErrorHandler(hsmbus); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - /* Disable Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX); - - /* Clear STOP Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - SMBUS_RESET_CR2(hsmbus); - - /* Flush remaining data in Fifo register in case of error occurs before TXEmpty */ - /* Disable the selected SMBUS peripheral */ - __HAL_SMBUS_DISABLE(hsmbus); - - hsmbus->PreviousState = HAL_SMBUS_STATE_READY; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* REenable the selected SMBUS peripheral */ - __HAL_SMBUS_ENABLE(hsmbus); - - HAL_SMBUS_MasterTxCpltCallback(hsmbus); - } - else if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - /* Store Last receive data if any */ - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) - { - /* Read data from RXDR */ - (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR; - - if ((hsmbus->XferSize > 0U)) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - - /* Disable Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX); - - /* Clear STOP Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - - /* Clear Configuration Register 2 */ - SMBUS_RESET_CR2(hsmbus); - - hsmbus->PreviousState = HAL_SMBUS_STATE_READY; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - HAL_SMBUS_MasterRxCpltCallback(hsmbus); - } - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) - { - /* Read data from RXDR */ - (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR; - hsmbus->XferSize--; - hsmbus->XferCount--; - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET) - { - /* Write data to TXDR */ - hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++); - hsmbus->XferSize--; - hsmbus->XferCount--; - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET) - { - if ((hsmbus->XferSize == 0U) && (hsmbus->XferCount != 0U)) - { - DevAddress = (hsmbus->Instance->CR2 & I2C_CR2_SADD); - - if (hsmbus->XferCount > MAX_NBYTE_SIZE) - { - SMBUS_TransferConfig(hsmbus, DevAddress, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP); - hsmbus->XferSize = MAX_NBYTE_SIZE; - } - else - { - hsmbus->XferSize = hsmbus->XferCount; - SMBUS_TransferConfig(hsmbus, DevAddress, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */ - /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */ - if (SMBUS_GET_PEC_MODE(hsmbus) != RESET) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - } - else if ((hsmbus->XferSize == 0U) && (hsmbus->XferCount == 0U)) - { - /* Call TxCpltCallback() if no stop mode is set */ - if (SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE) - { - /* Call the corresponding callback to inform upper layer of End of Transfer */ - if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - /* Disable Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX); - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - HAL_SMBUS_MasterTxCpltCallback(hsmbus); - } - else if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX); - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - HAL_SMBUS_MasterRxCpltCallback(hsmbus); - } - } - } - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TC) != RESET) - { - if (hsmbus->XferCount == 0U) - { - /* Specific use case for Quick command */ - if (hsmbus->pBuffPtr == NULL) - { - /* Generate a Stop command */ - hsmbus->Instance->CR2 |= I2C_CR2_STOP; - } - /* Call TxCpltCallback() if no stop mode is set */ - else if (SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE) - { - /* No Generate Stop, to permit restart mode */ - /* The stop will be done at the end of transfer, when SMBUS_AUTOEND_MODE enable */ - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX) - { - /* Disable Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX); - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - HAL_SMBUS_MasterTxCpltCallback(hsmbus); - } - else if (hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX) - { - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX); - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - HAL_SMBUS_MasterRxCpltCallback(hsmbus); - } - } - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; -} -/** - * @brief Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @retval HAL status - */ -static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus) -{ - uint8_t TransferDirection = 0U; - uint16_t SlaveAddrCode = 0U; - - /* Process Locked */ - __HAL_LOCK(hsmbus); - - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET) - { - /* Check that SMBUS transfer finished */ - /* if yes, normal usecase, a NACK is sent by the HOST when Transfer is finished */ - /* Mean XferCount == 0*/ - /* So clear Flag NACKF only */ - if (hsmbus->XferCount == 0U) - { - /* Clear NACK Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - } - else - { - /* if no, error usecase, a Non-Acknowledge of last Data is generated by the HOST*/ - /* Clear NACK Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF); - - /* Set HAL State to "Idle" State, mean to LISTEN state */ - /* So reset Slave Busy state */ - hsmbus->PreviousState = hsmbus->State; - hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX); - hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX); - - /* Disable RX/TX Interrupts, keep only ADDR Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX); - - /* Set ErrorCode corresponding to a Non-Acknowledge */ - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call the Error callback to inform upper layer */ - HAL_SMBUS_ErrorCallback(hsmbus); - } - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ADDR) != RESET) - { - TransferDirection = SMBUS_GET_DIR(hsmbus); - SlaveAddrCode = SMBUS_GET_ADDR_MATCH(hsmbus); - - /* Disable ADDR interrupt to prevent multiple ADDRInterrupt*/ - /* Other ADDRInterrupt will be treat in next Listen usecase */ - __HAL_SMBUS_DISABLE_IT(hsmbus, SMBUS_IT_ADDRI); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call Slave Addr callback */ - HAL_SMBUS_AddrCallback(hsmbus, TransferDirection, SlaveAddrCode); - } - else if ((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) || (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET)) - { - if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX) - { - /* Read data from RXDR */ - (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR; - hsmbus->XferSize--; - hsmbus->XferCount--; - - if (hsmbus->XferCount == 1U) - { - /* Receive last Byte, can be PEC byte in case of PEC BYTE enabled */ - /* or only the last Byte of Transfer */ - /* So reset the RELOAD bit mode */ - hsmbus->XferOptions &= ~SMBUS_RELOAD_MODE; - SMBUS_TransferConfig(hsmbus, 0U , 1U , hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - } - else if (hsmbus->XferCount == 0U) - { - /* Last Byte is received, disable Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX); - - /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_RX, keep only HAL_SMBUS_STATE_LISTEN */ - hsmbus->PreviousState = hsmbus->State; - hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call the Rx complete callback to inform upper layer of the end of receive process */ - HAL_SMBUS_SlaveRxCpltCallback(hsmbus); - } - else - { - /* Set Reload for next Bytes */ - SMBUS_TransferConfig(hsmbus, 0U, 1U, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP); - - /* Ack last Byte Read */ - hsmbus->Instance->CR2 &= ~I2C_CR2_NACK; - } - } - else if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX) - { - if ((hsmbus->XferSize == 0U) && (hsmbus->XferCount != 0U)) - { - if (hsmbus->XferCount > MAX_NBYTE_SIZE) - { - SMBUS_TransferConfig(hsmbus, 0U, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP); - hsmbus->XferSize = MAX_NBYTE_SIZE; - } - else - { - hsmbus->XferSize = hsmbus->XferCount; - SMBUS_TransferConfig(hsmbus, 0U, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP); - /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */ - /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */ - if (SMBUS_GET_PEC_MODE(hsmbus) != RESET) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - } - } - } - else if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET) - { - /* Write data to TXDR only if XferCount not reach "0" */ - /* A TXIS flag can be set, during STOP treatment */ - /* Check if all Data have already been sent */ - /* If it is the case, this last write in TXDR is not sent, correspond to a dummy TXIS event */ - if (hsmbus->XferCount > 0U) - { - /* Write data to TXDR */ - hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++); - hsmbus->XferCount--; - hsmbus->XferSize--; - } - - if (hsmbus->XferCount == 0U) - { - /* Last Byte is Transmitted */ - /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_TX, keep only HAL_SMBUS_STATE_LISTEN */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX); - hsmbus->PreviousState = hsmbus->State; - hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX); - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call the Tx complete callback to inform upper layer of the end of transmit process */ - HAL_SMBUS_SlaveTxCpltCallback(hsmbus); - } - } - - /* Check if STOPF is set */ - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET) - { - if ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) == HAL_SMBUS_STATE_LISTEN) - { - /* Store Last receive data if any */ - if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) - { - /* Read data from RXDR */ - (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR; - - if ((hsmbus->XferSize > 0U)) - { - hsmbus->XferSize--; - hsmbus->XferCount--; - } - } - - /* Disable RX and TX Interrupts */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX); - - /* Disable ADDR Interrupt */ - SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR); - - /* Disable Address Acknowledge */ - hsmbus->Instance->CR2 |= I2C_CR2_NACK; - - /* Clear Configuration Register 2 */ - SMBUS_RESET_CR2(hsmbus); - - /* Clear STOP Flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF); - - /* Clear ADDR flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ADDR); - - hsmbus->XferOptions = 0U; - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ - HAL_SMBUS_ListenCpltCallback(hsmbus); - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_OK; -} -/** - * @brief Manage the enabling of Interrupts. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param InterruptRequest Value of @ref SMBUS_Interrupt_configuration_definition. - * @retval HAL status - */ -static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest) -{ - uint32_t tmpisr = 0U; - - if ((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT) - { - /* Enable ERR interrupt */ - tmpisr |= SMBUS_IT_ERRI; - } - - if ((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR) - { - /* Enable ADDR, STOP interrupt */ - tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_ERRI; - } - - if ((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX) - { - /* Enable ERR, TC, STOP, NACK, RXI interrupt */ - tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_TXI; - } - - if ((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX) - { - /* Enable ERR, TC, STOP, NACK, TXI interrupt */ - tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_RXI; - } - - /* Enable interrupts only at the end */ - /* to avoid the risk of SMBUS interrupt handle execution before */ - /* all interrupts requested done */ - __HAL_SMBUS_ENABLE_IT(hsmbus, tmpisr); - - return HAL_OK; -} -/** - * @brief Manage the disabling of Interrupts. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param InterruptRequest Value of @ref SMBUS_Interrupt_configuration_definition. - * @retval HAL status - */ -static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest) -{ - uint32_t tmpisr = 0U; - - if (((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT) && (hsmbus->State == HAL_SMBUS_STATE_READY)) - { - /* Disable ERR interrupt */ - tmpisr |= SMBUS_IT_ERRI; - } - - if ((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX) - { - /* Disable TC, STOP, NACK, TXI interrupt */ - tmpisr |= SMBUS_IT_TCI | SMBUS_IT_TXI; - - if ((SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET) - && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)) - { - /* Disable ERR interrupt */ - tmpisr |= SMBUS_IT_ERRI; - } - - if ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN) - { - /* Disable STOPI, NACKI */ - tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI; - } - } - - if ((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX) - { - /* Disable TC, STOP, NACK, RXI interrupt */ - tmpisr |= SMBUS_IT_TCI | SMBUS_IT_RXI; - - if ((SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET) - && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)) - { - /* Disable ERR interrupt */ - tmpisr |= SMBUS_IT_ERRI; - } - - if ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN) - { - /* Disable STOPI, NACKI */ - tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI; - } - } - - if ((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR) - { - /* Enable ADDR, STOP interrupt */ - tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI; - - if (SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET) - { - /* Disable ERR interrupt */ - tmpisr |= SMBUS_IT_ERRI; - } - } - - /* Disable interrupts only at the end */ - /* to avoid a breaking situation like at "t" time */ - /* all disable interrupts request are not done */ - __HAL_SMBUS_DISABLE_IT(hsmbus, tmpisr); - - return HAL_OK; -} - -/** - * @brief SMBUS interrupts error handler. - * @param hsmbus SMBUS handle. - * @retval None - */ -static void SMBUS_ITErrorHandler(SMBUS_HandleTypeDef *hsmbus) -{ - uint32_t itflags = READ_REG(hsmbus->Instance->ISR); - uint32_t itsources = READ_REG(hsmbus->Instance->CR1); - - /* SMBUS Bus error interrupt occurred ------------------------------------*/ - if (((itflags & SMBUS_FLAG_BERR) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BERR; - - /* Clear BERR flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_BERR); - } - - /* SMBUS Over-Run/Under-Run interrupt occurred ----------------------------------------*/ - if (((itflags & SMBUS_FLAG_OVR) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_OVR; - - /* Clear OVR flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_OVR); - } - - /* SMBUS Arbitration Loss error interrupt occurred ------------------------------------*/ - if (((itflags & SMBUS_FLAG_ARLO) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ARLO; - - /* Clear ARLO flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ARLO); - } - - /* SMBUS Timeout error interrupt occurred ---------------------------------------------*/ - if (((itflags & SMBUS_FLAG_TIMEOUT) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BUSTIMEOUT; - - /* Clear TIMEOUT flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_TIMEOUT); - } - - /* SMBUS Alert error interrupt occurred -----------------------------------------------*/ - if (((itflags & SMBUS_FLAG_ALERT) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ALERT; - - /* Clear ALERT flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT); - } - - /* SMBUS Packet Error Check error interrupt occurred ----------------------------------*/ - if (((itflags & SMBUS_FLAG_PECERR) != RESET) && ((itsources & SMBUS_IT_ERRI) != RESET)) - { - hsmbus->ErrorCode |= HAL_SMBUS_ERROR_PECERR; - - /* Clear PEC error flag */ - __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_PECERR); - } - - /* Call the Error Callback in case of Error detected */ - if ((hsmbus->ErrorCode != HAL_SMBUS_ERROR_NONE) && (hsmbus->ErrorCode != HAL_SMBUS_ERROR_ACKF)) - { - /* Do not Reset the HAL state in case of ALERT error */ - if ((hsmbus->ErrorCode & HAL_SMBUS_ERROR_ALERT) != HAL_SMBUS_ERROR_ALERT) - { - if (((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX) - || ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX)) - { - /* Reset only HAL_SMBUS_STATE_SLAVE_BUSY_XX */ - /* keep HAL_SMBUS_STATE_LISTEN if set */ - hsmbus->PreviousState = HAL_SMBUS_STATE_READY; - hsmbus->State = HAL_SMBUS_STATE_LISTEN; - } - } - - /* Call the Error callback to inform upper layer */ - HAL_SMBUS_ErrorCallback(hsmbus); - } -} - -/** - * @brief Handle SMBUS Communication Timeout. - * @param hsmbus Pointer to a SMBUS_HandleTypeDef structure that contains - * the configuration information for the specified SMBUS. - * @param Flag Specifies the SMBUS flag to check. - * @param Status The new Flag status (SET or RESET). - * @param Timeout Timeout duration - * @retval HAL status - */ -static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout) -{ - uint32_t tickstart = HAL_GetTick(); - - /* Wait until flag is set */ - if (Status == RESET) - { - while (__HAL_SMBUS_GET_FLAG(hsmbus, Flag) == RESET) - { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if ((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) - { - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_TIMEOUT; - } - } - } - } - else - { - while (__HAL_SMBUS_GET_FLAG(hsmbus, Flag) != RESET) - { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if ((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) - { - hsmbus->PreviousState = hsmbus->State; - hsmbus->State = HAL_SMBUS_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hsmbus); - - return HAL_TIMEOUT; - } - } - } - } - return HAL_OK; -} - -/** - * @brief Handle SMBUSx communication when starting transfer or during transfer (TC or TCR flag are set). - * @param hsmbus SMBUS 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 SMBUS START condition generation. - * This parameter can be one or a combination of the following values: - * @arg @ref SMBUS_RELOAD_MODE Enable Reload mode. - * @arg @ref SMBUS_AUTOEND_MODE Enable Automatic end mode. - * @arg @ref SMBUS_SOFTEND_MODE Enable Software end mode and Reload mode. - * @arg @ref SMBUS_SENDPEC_MODE Enable Packet Error Calculation mode. - * @param Request New state of the SMBUS START condition generation. - * This parameter can be one of the following values: - * @arg @ref SMBUS_NO_STARTSTOP Don't Generate stop and start condition. - * @arg @ref SMBUS_GENERATE_STOP Generate stop condition (Size should be set to 0). - * @arg @ref SMBUS_GENERATE_START_READ Generate Restart for read request. - * @arg @ref SMBUS_GENERATE_START_WRITE Generate Restart for write request. - * @retval None - */ -static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request) -{ - uint32_t tmpreg = 0U; - - /* Check the parameters */ - assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance)); - assert_param(IS_SMBUS_TRANSFER_MODE(Mode)); - assert_param(IS_SMBUS_TRANSFER_REQUEST(Request)); - - /* Get the CR2 register value */ - tmpreg = hsmbus->Instance->CR2; - - /* clear tmpreg specific bits */ - tmpreg &= (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | I2C_CR2_RD_WRN | I2C_CR2_START | I2C_CR2_STOP | I2C_CR2_PECBYTE)); - - /* update tmpreg */ - tmpreg |= (uint32_t)(((uint32_t)DevAddress & I2C_CR2_SADD) | (((uint32_t)Size << 16U) & I2C_CR2_NBYTES) | \ - (uint32_t)Mode | (uint32_t)Request); - - /* update CR2 register */ - hsmbus->Instance->CR2 = tmpreg; -} - -/** - * @brief Convert SMBUSx OTHER_xxx XferOptions to functionnal XferOptions. - * @param hsmbus SMBUS handle. - * @retval None - */ -static void SMBUS_ConvertOtherXferOptions(SMBUS_HandleTypeDef *hsmbus) -{ - /* if user set XferOptions to SMBUS_OTHER_FRAME_NO_PEC */ - /* it request implicitly to generate a restart condition */ - /* set XferOptions to SMBUS_FIRST_FRAME */ - if (hsmbus->XferOptions == SMBUS_OTHER_FRAME_NO_PEC) - { - hsmbus->XferOptions = SMBUS_FIRST_FRAME; - } - /* else if user set XferOptions to SMBUS_OTHER_FRAME_WITH_PEC */ - /* it request implicitly to generate a restart condition */ - /* set XferOptions to SMBUS_FIRST_FRAME | SMBUS_SENDPEC_MODE */ - else if (hsmbus->XferOptions == SMBUS_OTHER_FRAME_WITH_PEC) - { - hsmbus->XferOptions = SMBUS_FIRST_FRAME | SMBUS_SENDPEC_MODE; - } - /* else if user set XferOptions to SMBUS_OTHER_AND_LAST_FRAME_NO_PEC */ - /* it request implicitly to generate a restart condition */ - /* then generate a stop condition at the end of transfer */ - /* set XferOptions to SMBUS_FIRST_AND_LAST_FRAME_NO_PEC */ - else if (hsmbus->XferOptions == SMBUS_OTHER_AND_LAST_FRAME_NO_PEC) - { - hsmbus->XferOptions = SMBUS_FIRST_AND_LAST_FRAME_NO_PEC; - } - /* else if user set XferOptions to SMBUS_OTHER_AND_LAST_FRAME_WITH_PEC */ - /* it request implicitly to generate a restart condition */ - /* then generate a stop condition at the end of transfer */ - /* set XferOptions to SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC */ - else if (hsmbus->XferOptions == SMBUS_OTHER_AND_LAST_FRAME_WITH_PEC) - { - hsmbus->XferOptions = SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC; - } -} -/** - * @} - */ - -#endif /* HAL_SMBUS_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |