628 lines
19 KiB
C
628 lines
19 KiB
C
/**
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******************************************************************************
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* @file stm32f7xx_hal_mdios.c
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* @author MCD Application Team
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* @version V1.2.0
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* @date 30-December-2016
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* @brief MDIOS HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the MDIOS Peripheral.
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* + Initialization and de-initialization functions
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* + IO operation functions
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* + Peripheral Control functions
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*
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@verbatim
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===============================================================================
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##### How to use this driver #####
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===============================================================================
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[..]
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The MDIOS HAL driver can be used as follows:
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(#) Declare a MDIOS_HandleTypeDef handle structure.
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(#) Initialize the MDIOS low level resources by implementing the HAL_MDIOS_MspInit() API:
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(##) Enable the MDIOS interface clock.
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(##) MDIOS pins configuration:
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(+++) Enable clocks for the MDIOS GPIOs.
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(+++) Configure the MDIOS pins as alternate function.
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(##) NVIC configuration if you need to use interrupt process:
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(+++) Configure the MDIOS interrupt priority.
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(+++) Enable the NVIC MDIOS IRQ handle.
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(#) Program the Port Address and the Preamble Check in the Init structure.
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(#) Initialize the MDIOS registers by calling the HAL_MDIOS_Init() API.
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(#) Perform direct slave read/write operations using the following APIs:
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(##) Read the value of a DINn register: HAL_MDIOS_ReadReg()
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(##) Write a value to a DOUTn register: HAL_MDIOS_WriteReg()
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(#) Get the Master read/write operations flags using the following APIs:
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(##) Bit map of DOUTn registers read by Master: HAL_MDIOS_GetReadRegAddress()
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(##) Bit map of DINn registers written by Master : HAL_MDIOS_GetWrittenRegAddress()
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(#) Clear the read/write flags using the following APIs:
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(##) Clear read flags of a set of registers: HAL_MDIOS_ClearReadRegAddress()
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(##) Clear write flags of a set of registers: HAL_MDIOS_ClearWriteRegAddress()
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(#) Enable interrupts on events using HAL_MDIOS_EnableEvents(), when called
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the MDIOS will generate an interrupt in the following cases:
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(##) a DINn register written by the Master
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(##) a DOUTn register read by the Master
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(##) an error occur
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-@@- A callback is executed for each genereted interrupt, so the driver provides the following
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HAL_MDIOS_WriteCpltCallback(), HAL_MDIOS_ReadCpltCallback() and HAL_MDIOS_ErrorCallback()
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-@@- HAL_MDIOS_IRQHandler() must be called from the MDIOS IRQ Handler, to handle the interrupt
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and execute the previous callbacks
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(#) Reset the MDIOS peripheral and all related ressources by calling the HAL_MDIOS_DeInit() API.
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(##) HAL_MDIOS_MspDeInit() must be implemented to reset low level ressources
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(GPIO, Clocks, NVIC configuration ...)
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f7xx_hal.h"
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/** @addtogroup STM32F7xx_HAL_Driver
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* @{
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*/
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/** @defgroup MDIOS MDIOS
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* @brief HAL MDIOS module driver
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* @{
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*/
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#ifdef HAL_MDIOS_MODULE_ENABLED
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#if defined (MDIOS)
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define MDIOS_PORT_ADDRESS_SHIFT ((uint32_t)8)
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#define MDIOS_ALL_REG_FLAG ((uint32_t)0xFFFFFFFFU)
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#define MDIOS_ALL_ERRORS_FLAG ((uint32_t)(MDIOS_SR_PERF | MDIOS_SR_SERF | MDIOS_SR_TERF))
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#define MDIOS_DIN_BASE_ADDR (MDIOS_BASE + 0x100)
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#define MDIOS_DOUT_BASE_ADDR (MDIOS_BASE + 0x180)
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @defgroup MDIOS_Exported_Functions MDIOS Exported Functions
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* @{
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*/
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/** @defgroup MDIOS_Exported_Functions_Group1 Initialization/de-initialization functions
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* @brief Initialization and Configuration functions
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*
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@verbatim
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===============================================================================
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##### Initialization and Configuration functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to initialize the MDIOS
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(+) The following parameters can be configured:
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(++) Port Address
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(++) Preamble Check
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@endverbatim
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* @{
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*/
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/**
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* @brief Initializes the MDIOS according to the specified parameters in
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* the MDIOS_InitTypeDef and creates the associated handle .
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* @param hmdios: pointer to a MDIOS_HandleTypeDef structure that contains
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* the configuration information for MDIOS module
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_Init(MDIOS_HandleTypeDef *hmdios)
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{
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uint32_t tmpcr = 0;
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/* Check the MDIOS handle allocation */
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if(hmdios == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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assert_param(IS_MDIOS_ALL_INSTANCE(hmdios->Instance));
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assert_param(IS_MDIOS_PORTADDRESS(hmdios->Init.PortAddress));
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assert_param(IS_MDIOS_PREAMBLECHECK(hmdios->Init.PreambleCheck));
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/* Process Locked */
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__HAL_LOCK(hmdios);
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if(hmdios->State == HAL_MDIOS_STATE_RESET)
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{
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/* Init the low level hardware */
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HAL_MDIOS_MspInit(hmdios);
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}
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/* Change the MDIOS state */
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hmdios->State = HAL_MDIOS_STATE_BUSY;
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/* Get the MDIOS CR value */
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tmpcr = hmdios->Instance->CR;
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/* Clear PORT_ADDRESS, DPC and EN bits */
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tmpcr &= ((uint32_t)~(MDIOS_CR_EN | MDIOS_CR_DPC | MDIOS_CR_PORT_ADDRESS));
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/* Set MDIOS control parametrs and enable the peripheral */
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tmpcr |= (uint32_t)(((hmdios->Init.PortAddress) << MDIOS_PORT_ADDRESS_SHIFT) |\
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(hmdios->Init.PreambleCheck) | \
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(MDIOS_CR_EN));
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/* Write the MDIOS CR */
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hmdios->Instance->CR = tmpcr;
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/* Change the MDIOS state */
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hmdios->State = HAL_MDIOS_STATE_READY;
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/* Release Lock */
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__HAL_UNLOCK(hmdios);
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/* Return function status */
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return HAL_OK;
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}
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/**
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* @brief DeInitializes the MDIOS peripheral.
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* @param hmdios: MDIOS handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_DeInit(MDIOS_HandleTypeDef *hmdios)
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{
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/* Check the MDIOS handle allocation */
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if(hmdios == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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assert_param(IS_MDIOS_ALL_INSTANCE(hmdios->Instance));
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/* Change the MDIOS state */
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hmdios->State = HAL_MDIOS_STATE_BUSY;
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/* Disable the Peripheral */
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__HAL_MDIOS_DISABLE(hmdios);
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/* DeInit the low level hardware */
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HAL_MDIOS_MspDeInit(hmdios);
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/* Change the MDIOS state */
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hmdios->State = HAL_MDIOS_STATE_RESET;
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/* Release Lock */
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__HAL_UNLOCK(hmdios);
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/* Return function status */
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return HAL_OK;
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}
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/**
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* @brief MDIOS MSP Init
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* @param hmdios: mdios handle
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* @retval None
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*/
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__weak void HAL_MDIOS_MspInit(MDIOS_HandleTypeDef *hmdios)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hmdios);
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/* NOTE : This function should not be modified, when the callback is needed,
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the HAL_MDIOS_MspInit can be implemented in the user file
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*/
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}
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/**
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* @brief MDIOS MSP DeInit
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* @param hmdios: mdios handle
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* @retval None
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*/
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__weak void HAL_MDIOS_MspDeInit(MDIOS_HandleTypeDef *hmdios)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hmdios);
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/* NOTE : This function should not be modified, when the callback is needed,
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the HAL_MDIOS_MspDeInit can be implemented in the user file
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*/
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}
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/**
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* @}
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*/
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/** @defgroup MDIOS_Exported_Functions_Group2 IO operation functions
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* @brief MDIOS Read/Write functions
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*
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@verbatim
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===============================================================================
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##### IO operation functions #####
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===============================================================================
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This subsection provides a set of functions allowing to manage the MDIOS
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read and write operations.
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(#) APIs that allow to the MDIOS to read/write from/to the
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values of one of the DINn/DOUTn registers:
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(+) Read the value of a DINn register: HAL_MDIOS_ReadReg()
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(+) Write a value to a DOUTn register: HAL_MDIOS_WriteReg()
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(#) APIs that provide if there are some Slave registres have been
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read or written by the Master:
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(+) DOUTn registers read by Master: HAL_MDIOS_GetReadRegAddress()
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(+) DINn registers written by Master : HAL_MDIOS_GetWrittenRegAddress()
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(#) APIs that Clear the read/write flags:
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(+) Clear read registers flags: HAL_MDIOS_ClearReadRegAddress()
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(+) Clear write registers flags: HAL_MDIOS_ClearWriteRegAddress()
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(#) A set of Callbacks are provided:
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(+) HAL_MDIOS_WriteCpltCallback()
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(+) HAL_MDIOS_ReadCpltCallback()
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(+) HAL_MDIOS_ErrorCallback()
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@endverbatim
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* @{
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*/
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/**
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* @brief Writes to an MDIOS output register
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* @param hmdios: mdios handle
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* @param RegNum: MDIOS input register number
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* @param Data: Data to write
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_WriteReg(MDIOS_HandleTypeDef *hmdios, uint32_t RegNum, uint16_t Data)
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{
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uint32_t tmpreg;
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/* Check the parameters */
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assert_param(IS_MDIOS_REGISTER(RegNum));
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/* Process Locked */
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__HAL_LOCK(hmdios);
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/* Get the addr of output register to be written by the MDIOS */
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tmpreg = MDIOS_DOUT_BASE_ADDR + (4 * RegNum);
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/* Write to DOUTn register */
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*((uint32_t *)tmpreg) = Data;
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/* Process Unlocked */
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__HAL_UNLOCK(hmdios);
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return HAL_OK;
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}
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/**
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* @brief Reads an MDIOS input register
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* @param hmdios: mdios handle
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* @param RegNum: MDIOS input register number
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* @param pData: pointer to Data
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_ReadReg(MDIOS_HandleTypeDef *hmdios, uint32_t RegNum, uint16_t *pData)
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{
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uint32_t tmpreg;
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/* Check the parameters */
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assert_param(IS_MDIOS_REGISTER(RegNum));
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/* Process Locked */
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__HAL_LOCK(hmdios);
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/* Get the addr of input register to be read by the MDIOS */
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tmpreg = MDIOS_DIN_BASE_ADDR + (4 * RegNum);
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/* Read DINn register */
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*pData = (uint16_t)(*((uint32_t *)tmpreg));
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/* Process Unlocked */
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__HAL_UNLOCK(hmdios);
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return HAL_OK;
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}
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/**
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* @brief Gets Written registers by MDIO master
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* @param hmdios: mdios handle
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* @retval bit map of written registers addresses
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*/
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uint32_t HAL_MDIOS_GetWrittenRegAddress(MDIOS_HandleTypeDef *hmdios)
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{
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return hmdios->Instance->WRFR;
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}
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/**
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* @brief Gets Read registers by MDIO master
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* @param hmdios: mdios handle
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* @retval bit map of read registers addresses
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*/
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uint32_t HAL_MDIOS_GetReadRegAddress(MDIOS_HandleTypeDef *hmdios)
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{
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return hmdios->Instance->RDFR;
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}
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/**
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* @brief Clears Write registers flag
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* @param hmdios: mdios handle
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* @param RegNum: registers addresses to be cleared
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_ClearWriteRegAddress(MDIOS_HandleTypeDef *hmdios, uint32_t RegNum)
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{
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/* Check the parameters */
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assert_param(IS_MDIOS_REGISTER(RegNum));
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/* Process Locked */
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__HAL_LOCK(hmdios);
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/* Clear write registers flags */
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hmdios->Instance->CWRFR |= (RegNum);
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/* Release Lock */
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__HAL_UNLOCK(hmdios);
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return HAL_OK;
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}
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/**
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* @brief Clears Read register flag
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* @param hmdios: mdios handle
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* @param RegNum: registers addresses to be cleared
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_ClearReadRegAddress(MDIOS_HandleTypeDef *hmdios, uint32_t RegNum)
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{
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/* Check the parameters */
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assert_param(IS_MDIOS_REGISTER(RegNum));
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/* Process Locked */
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__HAL_LOCK(hmdios);
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/* Clear read registers flags */
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hmdios->Instance->CRDFR |= (RegNum);
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/* Release Lock */
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__HAL_UNLOCK(hmdios);
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return HAL_OK;
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}
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/**
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* @brief Enables Events for MDIOS peripheral
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* @param hmdios: mdios handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_MDIOS_EnableEvents(MDIOS_HandleTypeDef *hmdios)
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{
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/* Process Locked */
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__HAL_LOCK(hmdios);
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/* Enable MDIOS interrupts: Register Write, Register Read and Error ITs */
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__HAL_MDIOS_ENABLE_IT(hmdios, (MDIOS_IT_WRITE | MDIOS_IT_READ | MDIOS_IT_ERROR));
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/* Process Unlocked */
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__HAL_UNLOCK(hmdios);
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return HAL_OK;
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}
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/**
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* @brief This function handles MDIOS interrupt request.
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* @param hmdios: MDIOS handle
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* @retval None
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*/
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void HAL_MDIOS_IRQHandler(MDIOS_HandleTypeDef *hmdios)
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{
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/* Write Register Interrupt enabled ? */
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if(__HAL_MDIOS_GET_IT_SOURCE(hmdios, MDIOS_IT_WRITE) != RESET)
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{
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/* Write register flag */
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if(HAL_MDIOS_GetWrittenRegAddress(hmdios) != RESET)
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{
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/* Write callback function */
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HAL_MDIOS_WriteCpltCallback(hmdios);
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/* Clear write register flag */
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HAL_MDIOS_ClearWriteRegAddress(hmdios, MDIOS_ALL_REG_FLAG);
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}
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}
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/* Read Register Interrupt enabled ? */
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if(__HAL_MDIOS_GET_IT_SOURCE(hmdios, MDIOS_IT_READ) != RESET)
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{
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/* Read register flag */
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if(HAL_MDIOS_GetReadRegAddress(hmdios) != RESET)
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{
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/* Read callback function */
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HAL_MDIOS_ReadCpltCallback(hmdios);
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/* Clear read register flag */
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HAL_MDIOS_ClearReadRegAddress(hmdios, MDIOS_ALL_REG_FLAG);
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}
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}
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/* Error Interrupt enabled ? */
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if(__HAL_MDIOS_GET_IT_SOURCE(hmdios, MDIOS_IT_ERROR) != RESET)
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{
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/* All Errors Flag */
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if(__HAL_MDIOS_GET_ERROR_FLAG(hmdios, MDIOS_ALL_ERRORS_FLAG) !=RESET)
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{
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/* Error Callback */
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HAL_MDIOS_ErrorCallback(hmdios);
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/* Clear errors flag */
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__HAL_MDIOS_CLEAR_ERROR_FLAG(hmdios, MDIOS_ALL_ERRORS_FLAG);
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}
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}
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/* check MDIOS WAKEUP exti flag */
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if(__HAL_MDIOS_WAKEUP_EXTI_GET_FLAG() != RESET)
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{
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/* MDIOS WAKEUP interrupt user callback */
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HAL_MDIOS_WakeUpCallback(hmdios);
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/* Clear MDIOS WAKEUP Exti pending bit */
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__HAL_MDIOS_WAKEUP_EXTI_CLEAR_FLAG();
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}
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}
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/**
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* @brief Write Complete Callback
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* @param hmdios: mdios handle
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* @retval None
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*/
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__weak void HAL_MDIOS_WriteCpltCallback(MDIOS_HandleTypeDef *hmdios)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hmdios);
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/* NOTE : This function should not be modified, when the callback is needed,
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the HAL_MDIOS_WriteCpltCallback can be implemented in the user file
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*/
|
|
}
|
|
|
|
/**
|
|
* @brief Read Complete Callback
|
|
* @param hmdios: mdios handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_MDIOS_ReadCpltCallback(MDIOS_HandleTypeDef *hmdios)
|
|
{
|
|
/* Prevent unused argument(s) compilation warning */
|
|
UNUSED(hmdios);
|
|
|
|
/* NOTE : This function should not be modified, when the callback is needed,
|
|
the HAL_MDIOS_ReadCpltCallback can be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief Error Callback
|
|
* @param hmdios: mdios handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_MDIOS_ErrorCallback(MDIOS_HandleTypeDef *hmdios)
|
|
{
|
|
/* Prevent unused argument(s) compilation warning */
|
|
UNUSED(hmdios);
|
|
|
|
/* NOTE : This function should not be modified, when the callback is needed,
|
|
the HAL_MDIOS_ErrorCallback can be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief MDIOS WAKEUP interrupt callback
|
|
* @param hmdios: mdios handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_MDIOS_WakeUpCallback(MDIOS_HandleTypeDef *hmdios)
|
|
{
|
|
/* Prevent unused argument(s) compilation warning */
|
|
UNUSED(hmdios);
|
|
|
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
|
the HAL_MDIOS_WakeUpCallback could be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup MDIOS_Exported_Functions_Group3 Peripheral Control functions
|
|
* @brief MDIOS control functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Peripheral Control functions #####
|
|
===============================================================================
|
|
[..]
|
|
This subsection provides a set of functions allowing to control the MDIOS.
|
|
(+) HAL_MDIOS_GetState() API, helpful to check in run-time the state.
|
|
(+) HAL_MDIOS_GetError() API, returns the errors occured during data transfer.
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Gets MDIOS error flags
|
|
* @param hmdios: mdios handle
|
|
* @retval bit map of occured errors
|
|
*/
|
|
uint32_t HAL_MDIOS_GetError(MDIOS_HandleTypeDef *hmdios)
|
|
{
|
|
/* return errors flags on status register */
|
|
return hmdios->Instance->SR;
|
|
}
|
|
|
|
/**
|
|
* @brief Return the MDIOS HAL state
|
|
* @param hmdios: mdios handle
|
|
* @retval MDIOS state
|
|
*/
|
|
HAL_MDIOS_StateTypeDef HAL_MDIOS_GetState(MDIOS_HandleTypeDef *hmdios)
|
|
{
|
|
/* Return MDIOS state */
|
|
return hmdios->State;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#endif /* MDIOS */
|
|
#endif /* HAL_MDIOS_MODULE_ENABLED */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|