mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/TARGET_STM32F2/device/stm32f2xx_hal_eth.c
- Revision:
- 149:156823d33999
- Parent:
- 144:ef7eb2e8f9f7
- Child:
- 167:e84263d55307
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F2/device/stm32f2xx_hal_eth.c Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,2051 @@
+/**
+ ******************************************************************************
+ * @file stm32f2xx_hal_eth.c
+ * @author MCD Application Team
+ * @version V1.1.3
+ * @date 29-June-2016
+ * @brief ETH HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Ethernet (ETH) peripheral:
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ * + Peripheral Control functions
+ * + Peripheral State and Errors functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (#)Declare a ETH_HandleTypeDef handle structure, for example:
+ ETH_HandleTypeDef heth;
+
+ (#)Fill parameters of Init structure in heth handle
+
+ (#)Call HAL_ETH_Init() API to initialize the Ethernet peripheral (MAC, DMA, ...)
+
+ (#)Initialize the ETH low level resources through the HAL_ETH_MspInit() API:
+ (##) Enable the Ethernet interface clock using
+ (+++) __HAL_RCC_ETHMAC_CLK_ENABLE();
+ (+++) __HAL_RCC_ETHMACTX_CLK_ENABLE();
+ (+++) __HAL_RCC_ETHMACRX_CLK_ENABLE();
+
+ (##) Initialize the related GPIO clocks
+ (##) Configure Ethernet pin-out
+ (##) Configure Ethernet NVIC interrupt (IT mode)
+
+ (#)Initialize Ethernet DMA Descriptors in chain mode and point to allocated buffers:
+ (##) HAL_ETH_DMATxDescListInit(); for Transmission process
+ (##) HAL_ETH_DMARxDescListInit(); for Reception process
+
+ (#)Enable MAC and DMA transmission and reception:
+ (##) HAL_ETH_Start();
+
+ (#)Prepare ETH DMA TX Descriptors and give the hand to ETH DMA to transfer
+ the frame to MAC TX FIFO:
+ (##) HAL_ETH_TransmitFrame();
+
+ (#)Poll for a received frame in ETH RX DMA Descriptors and get received
+ frame parameters
+ (##) HAL_ETH_GetReceivedFrame(); (should be called into an infinite loop)
+
+ (#) Get a received frame when an ETH RX interrupt occurs:
+ (##) HAL_ETH_GetReceivedFrame_IT(); (called in IT mode only)
+
+ (#) Communicate with external PHY device:
+ (##) Read a specific register from the PHY
+ HAL_ETH_ReadPHYRegister();
+ (##) Write data to a specific RHY register:
+ HAL_ETH_WritePHYRegister();
+
+ (#) Configure the Ethernet MAC after ETH peripheral initialization
+ HAL_ETH_ConfigMAC(); all MAC parameters should be filled.
+
+ (#) Configure the Ethernet DMA after ETH peripheral initialization
+ HAL_ETH_ConfigDMA(); all DMA parameters should be filled.
+
+ @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 "stm32f2xx_hal.h"
+
+/** @addtogroup STM32F2xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup ETH ETH
+ * @brief ETH HAL module driver
+ * @{
+ */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+
+#if defined(STM32F207xx) || defined(STM32F217xx)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup ETH_Private_Constants ETH Private Constants
+ * @{
+ */
+#define ETH_TIMEOUT_SWRESET ((uint32_t)500U)
+#define ETH_TIMEOUT_LINKED_STATE ((uint32_t)5000U)
+#define ETH_TIMEOUT_AUTONEGO_COMPLETED ((uint32_t)5000U)
+
+/**
+ * @}
+ */
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup ETH_Private_Functions ETH Private Functions
+ * @{
+ */
+static void ETH_MACDMAConfig(ETH_HandleTypeDef *heth, uint32_t err);
+static void ETH_MACAddressConfig(ETH_HandleTypeDef *heth, uint32_t MacAddr, uint8_t *Addr);
+static void ETH_MACReceptionEnable(ETH_HandleTypeDef *heth);
+static void ETH_MACReceptionDisable(ETH_HandleTypeDef *heth);
+static void ETH_MACTransmissionEnable(ETH_HandleTypeDef *heth);
+static void ETH_MACTransmissionDisable(ETH_HandleTypeDef *heth);
+static void ETH_DMATransmissionEnable(ETH_HandleTypeDef *heth);
+static void ETH_DMATransmissionDisable(ETH_HandleTypeDef *heth);
+static void ETH_DMAReceptionEnable(ETH_HandleTypeDef *heth);
+static void ETH_DMAReceptionDisable(ETH_HandleTypeDef *heth);
+static void ETH_FlushTransmitFIFO(ETH_HandleTypeDef *heth);
+static void ETH_Delay(uint32_t mdelay);
+
+/**
+ * @}
+ */
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup ETH_Exported_Functions ETH Exported Functions
+ * @{
+ */
+
+/** @defgroup ETH_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+ @verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Initialize and configure the Ethernet peripheral
+ (+) De-initialize the Ethernet peripheral
+
+ @endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the Ethernet MAC and DMA according to default
+ * parameters.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_Init(ETH_HandleTypeDef *heth)
+{
+ uint32_t tmpreg1 = 0U, phyreg = 0U;
+ uint32_t hclk = 60000000U;
+ uint32_t tickstart = 0U;
+ uint32_t err = ETH_SUCCESS;
+
+ /* Check the ETH peripheral state */
+ if(heth == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check parameters */
+ assert_param(IS_ETH_AUTONEGOTIATION(heth->Init.AutoNegotiation));
+ assert_param(IS_ETH_RX_MODE(heth->Init.RxMode));
+ assert_param(IS_ETH_CHECKSUM_MODE(heth->Init.ChecksumMode));
+ assert_param(IS_ETH_MEDIA_INTERFACE(heth->Init.MediaInterface));
+
+ if(heth->State == HAL_ETH_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ heth->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware : GPIO, CLOCK, NVIC. */
+ HAL_ETH_MspInit(heth);
+ }
+
+ /* Enable SYSCFG Clock */
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+ /* Select MII or RMII Mode*/
+ SYSCFG->PMC &= ~(SYSCFG_PMC_MII_RMII_SEL);
+ SYSCFG->PMC |= (uint32_t)heth->Init.MediaInterface;
+
+ /* Ethernet Software reset */
+ /* Set the SWR bit: resets all MAC subsystem internal registers and logic */
+ /* After reset all the registers holds their respective reset values */
+ (heth->Instance)->DMABMR |= ETH_DMABMR_SR;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait for software reset */
+ while (((heth->Instance)->DMABMR & ETH_DMABMR_SR) != (uint32_t)RESET)
+ {
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > ETH_TIMEOUT_SWRESET)
+ {
+ heth->State= HAL_ETH_STATE_TIMEOUT;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Note: The SWR is not performed if the ETH_RX_CLK or the ETH_TX_CLK are
+ not available, please check your external PHY or the IO configuration */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /*-------------------------------- MAC Initialization ----------------------*/
+ /* Get the ETHERNET MACMIIAR value */
+ tmpreg1 = (heth->Instance)->MACMIIAR;
+ /* Clear CSR Clock Range CR[2:0] bits */
+ tmpreg1 &= ETH_MACMIIAR_CR_MASK;
+
+ /* Get hclk frequency value */
+ hclk = HAL_RCC_GetHCLKFreq();
+
+ /* Set CR bits depending on hclk value */
+ if((hclk >= 20000000U)&&(hclk < 35000000U))
+ {
+ /* CSR Clock Range between 20-35 MHz */
+ tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div16;
+ }
+ else if((hclk >= 35000000U)&&(hclk < 60000000U))
+ {
+ /* CSR Clock Range between 35-60 MHz */
+ tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div26;
+ }
+ else if((hclk >= 60000000U)&&(hclk < 100000000U))
+ {
+ /* CSR Clock Range between 60-100 MHz */
+ tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div42;
+ }
+ else /* ((hclk >= 100000000)&&(hclk < 120000000)) */
+ {
+ /* CSR Clock Range between 100-120 MHz */
+ tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div62;
+ }
+
+ /* Write to ETHERNET MAC MIIAR: Configure the ETHERNET CSR Clock Range */
+ (heth->Instance)->MACMIIAR = (uint32_t)tmpreg1;
+
+ /*-------------------- PHY initialization and configuration ----------------*/
+ /* Put the PHY in reset mode */
+ if((HAL_ETH_WritePHYRegister(heth, PHY_BCR, PHY_RESET)) != HAL_OK)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ /* Set the ETH peripheral state to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return HAL_ERROR */
+ return HAL_ERROR;
+ }
+
+ /* Delay to assure PHY reset */
+ HAL_Delay(PHY_RESET_DELAY);
+
+ if((heth->Init).AutoNegotiation != ETH_AUTONEGOTIATION_DISABLE)
+ {
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* We wait for linked status */
+ do
+ {
+ HAL_ETH_ReadPHYRegister(heth, PHY_BSR, &phyreg);
+
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > ETH_TIMEOUT_LINKED_STATE)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_TIMEOUT;
+ }
+ } while (((phyreg & PHY_LINKED_STATUS) != PHY_LINKED_STATUS));
+
+
+ /* Enable Auto-Negotiation */
+ if((HAL_ETH_WritePHYRegister(heth, PHY_BCR, PHY_AUTONEGOTIATION)) != HAL_OK)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ /* Set the ETH peripheral state to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return HAL_ERROR */
+ return HAL_ERROR;
+ }
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait until the auto-negotiation will be completed */
+ do
+ {
+ HAL_ETH_ReadPHYRegister(heth, PHY_BSR, &phyreg);
+
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > ETH_TIMEOUT_AUTONEGO_COMPLETED)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_TIMEOUT;
+ }
+
+ } while (((phyreg & PHY_AUTONEGO_COMPLETE) != PHY_AUTONEGO_COMPLETE));
+
+ /* Read the result of the auto-negotiation */
+ if((HAL_ETH_ReadPHYRegister(heth, PHY_SR, &phyreg)) != HAL_OK)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ /* Set the ETH peripheral state to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return HAL_ERROR */
+ return HAL_ERROR;
+ }
+
+ /* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */
+ if((phyreg & PHY_DUPLEX_STATUS) != (uint32_t)RESET)
+ {
+ /* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
+ (heth->Init).DuplexMode = ETH_MODE_FULLDUPLEX;
+ }
+ else
+ {
+ /* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
+ (heth->Init).DuplexMode = ETH_MODE_HALFDUPLEX;
+ }
+ /* Configure the MAC with the speed fixed by the auto-negotiation process */
+ if((phyreg & PHY_SPEED_STATUS) == PHY_SPEED_STATUS)
+ {
+ /* Set Ethernet speed to 10M following the auto-negotiation */
+ (heth->Init).Speed = ETH_SPEED_10M;
+ }
+ else
+ {
+ /* Set Ethernet speed to 100M following the auto-negotiation */
+ (heth->Init).Speed = ETH_SPEED_100M;
+ }
+ }
+ else /* AutoNegotiation Disable */
+ {
+ /* Check parameters */
+ assert_param(IS_ETH_SPEED(heth->Init.Speed));
+ assert_param(IS_ETH_DUPLEX_MODE(heth->Init.DuplexMode));
+
+ /* Set MAC Speed and Duplex Mode */
+ if(HAL_ETH_WritePHYRegister(heth, PHY_BCR, ((uint16_t)((heth->Init).DuplexMode >> 3) |
+ (uint16_t)((heth->Init).Speed >> 1))) != HAL_OK)
+ {
+ /* In case of write timeout */
+ err = ETH_ERROR;
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ /* Set the ETH peripheral state to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return HAL_ERROR */
+ return HAL_ERROR;
+ }
+
+ /* Delay to assure PHY configuration */
+ HAL_Delay(PHY_CONFIG_DELAY);
+ }
+
+ /* Config MAC and DMA */
+ ETH_MACDMAConfig(heth, err);
+
+ /* Set ETH HAL State to Ready */
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief De-Initializes the ETH peripheral.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_DeInit(ETH_HandleTypeDef *heth)
+{
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* De-Init the low level hardware : GPIO, CLOCK, NVIC. */
+ HAL_ETH_MspDeInit(heth);
+
+ /* Set ETH HAL state to Disabled */
+ heth->State= HAL_ETH_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the DMA Tx descriptors in chain mode.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param DMATxDescTab: Pointer to the first Tx desc list
+ * @param TxBuff: Pointer to the first TxBuffer list
+ * @param TxBuffCount: Number of the used Tx desc in the list
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_DMATxDescListInit(ETH_HandleTypeDef *heth, ETH_DMADescTypeDef *DMATxDescTab, uint8_t *TxBuff, uint32_t TxBuffCount)
+{
+ uint32_t i = 0U;
+ ETH_DMADescTypeDef *dmatxdesc;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Set the DMATxDescToSet pointer with the first one of the DMATxDescTab list */
+ heth->TxDesc = DMATxDescTab;
+
+ /* Fill each DMATxDesc descriptor with the right values */
+ for(i=0U; i < TxBuffCount; i++)
+ {
+ /* Get the pointer on the ith member of the Tx Desc list */
+ dmatxdesc = DMATxDescTab + i;
+
+ /* Set Second Address Chained bit */
+ dmatxdesc->Status = ETH_DMATXDESC_TCH;
+
+ /* Set Buffer1 address pointer */
+ dmatxdesc->Buffer1Addr = (uint32_t)(&TxBuff[i*ETH_TX_BUF_SIZE]);
+
+ if ((heth->Init).ChecksumMode == ETH_CHECKSUM_BY_HARDWARE)
+ {
+ /* Set the DMA Tx descriptors checksum insertion */
+ dmatxdesc->Status |= ETH_DMATXDESC_CHECKSUMTCPUDPICMPFULL;
+ }
+
+ /* Initialize the next descriptor with the Next Descriptor Polling Enable */
+ if(i < (TxBuffCount-1))
+ {
+ /* Set next descriptor address register with next descriptor base address */
+ dmatxdesc->Buffer2NextDescAddr = (uint32_t)(DMATxDescTab+i+1);
+ }
+ else
+ {
+ /* For last descriptor, set next descriptor address register equal to the first descriptor base address */
+ dmatxdesc->Buffer2NextDescAddr = (uint32_t) DMATxDescTab;
+ }
+ }
+
+ /* Set Transmit Descriptor List Address Register */
+ (heth->Instance)->DMATDLAR = (uint32_t) DMATxDescTab;
+
+ /* Set ETH HAL State to Ready */
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the DMA Rx descriptors in chain mode.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param DMARxDescTab: Pointer to the first Rx desc list
+ * @param RxBuff: Pointer to the first RxBuffer list
+ * @param RxBuffCount: Number of the used Rx desc in the list
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_DMARxDescListInit(ETH_HandleTypeDef *heth, ETH_DMADescTypeDef *DMARxDescTab, uint8_t *RxBuff, uint32_t RxBuffCount)
+{
+ uint32_t i = 0U;
+ ETH_DMADescTypeDef *DMARxDesc;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Set the Ethernet RxDesc pointer with the first one of the DMARxDescTab list */
+ heth->RxDesc = DMARxDescTab;
+
+ /* Fill each DMARxDesc descriptor with the right values */
+ for(i=0U; i < RxBuffCount; i++)
+ {
+ /* Get the pointer on the ith member of the Rx Desc list */
+ DMARxDesc = DMARxDescTab+i;
+
+ /* Set Own bit of the Rx descriptor Status */
+ DMARxDesc->Status = ETH_DMARXDESC_OWN;
+
+ /* Set Buffer1 size and Second Address Chained bit */
+ DMARxDesc->ControlBufferSize = ETH_DMARXDESC_RCH | ETH_RX_BUF_SIZE;
+
+ /* Set Buffer1 address pointer */
+ DMARxDesc->Buffer1Addr = (uint32_t)(&RxBuff[i*ETH_RX_BUF_SIZE]);
+
+ if((heth->Init).RxMode == ETH_RXINTERRUPT_MODE)
+ {
+ /* Enable Ethernet DMA Rx Descriptor interrupt */
+ DMARxDesc->ControlBufferSize &= ~ETH_DMARXDESC_DIC;
+ }
+
+ /* Initialize the next descriptor with the Next Descriptor Polling Enable */
+ if(i < (RxBuffCount-1U))
+ {
+ /* Set next descriptor address register with next descriptor base address */
+ DMARxDesc->Buffer2NextDescAddr = (uint32_t)(DMARxDescTab+i+1);
+ }
+ else
+ {
+ /* For last descriptor, set next descriptor address register equal to the first descriptor base address */
+ DMARxDesc->Buffer2NextDescAddr = (uint32_t)(DMARxDescTab);
+ }
+ }
+
+ /* Set Receive Descriptor List Address Register */
+ (heth->Instance)->DMARDLAR = (uint32_t) DMARxDescTab;
+
+ /* Set ETH HAL State to Ready */
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the ETH MSP.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+__weak void HAL_ETH_MspInit(ETH_HandleTypeDef *heth)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(heth);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_ETH_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief DeInitializes ETH MSP.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+__weak void HAL_ETH_MspDeInit(ETH_HandleTypeDef *heth)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(heth);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_ETH_MspDeInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ETH_Exported_Functions_Group2 IO operation functions
+ * @brief Data transfers functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### IO operation functions #####
+ ==============================================================================
+ [..] This section provides functions allowing to:
+ (+) Transmit a frame
+ HAL_ETH_TransmitFrame();
+ (+) Receive a frame
+ HAL_ETH_GetReceivedFrame();
+ HAL_ETH_GetReceivedFrame_IT();
+ (+) Read from an External PHY register
+ HAL_ETH_ReadPHYRegister();
+ (+) Write to an External PHY register
+ HAL_ETH_WritePHYRegister();
+
+ @endverbatim
+
+ * @{
+ */
+
+/**
+ * @brief Sends an Ethernet frame.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param FrameLength: Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_TransmitFrame(ETH_HandleTypeDef *heth, uint32_t FrameLength)
+{
+ uint32_t bufcount = 0U, size = 0U, i = 0U;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ if (FrameLength == 0U)
+ {
+ /* Set ETH HAL state to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_ERROR;
+ }
+
+ /* Check if the descriptor is owned by the ETHERNET DMA (when set) or CPU (when reset) */
+ if(((heth->TxDesc)->Status & ETH_DMATXDESC_OWN) != (uint32_t)RESET)
+ {
+ /* OWN bit set */
+ heth->State = HAL_ETH_STATE_BUSY_TX;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_ERROR;
+ }
+
+ /* Get the number of needed Tx buffers for the current frame */
+ if (FrameLength > ETH_TX_BUF_SIZE)
+ {
+ bufcount = FrameLength/ETH_TX_BUF_SIZE;
+ if (FrameLength % ETH_TX_BUF_SIZE)
+ {
+ bufcount++;
+ }
+ }
+ else
+ {
+ bufcount = 1U;
+ }
+ if (bufcount == 1U)
+ {
+ /* Set LAST and FIRST segment */
+ heth->TxDesc->Status |=ETH_DMATXDESC_FS|ETH_DMATXDESC_LS;
+ /* Set frame size */
+ heth->TxDesc->ControlBufferSize = (FrameLength & ETH_DMATXDESC_TBS1);
+ /* Set Own bit of the Tx descriptor Status: gives the buffer back to ETHERNET DMA */
+ heth->TxDesc->Status |= ETH_DMATXDESC_OWN;
+ /* Point to next descriptor */
+ heth->TxDesc= (ETH_DMADescTypeDef *)(heth->TxDesc->Buffer2NextDescAddr);
+ }
+ else
+ {
+ for (i=0U; i< bufcount; i++)
+ {
+ /* Clear FIRST and LAST segment bits */
+ heth->TxDesc->Status &= ~(ETH_DMATXDESC_FS | ETH_DMATXDESC_LS);
+
+ if (i == 0U)
+ {
+ /* Setting the first segment bit */
+ heth->TxDesc->Status |= ETH_DMATXDESC_FS;
+ }
+
+ /* Program size */
+ heth->TxDesc->ControlBufferSize = (ETH_TX_BUF_SIZE & ETH_DMATXDESC_TBS1);
+
+ if (i == (bufcount-1U))
+ {
+ /* Setting the last segment bit */
+ heth->TxDesc->Status |= ETH_DMATXDESC_LS;
+ size = FrameLength - (bufcount-1U)*ETH_TX_BUF_SIZE;
+ heth->TxDesc->ControlBufferSize = (size & ETH_DMATXDESC_TBS1);
+ }
+
+ /* Set Own bit of the Tx descriptor Status: gives the buffer back to ETHERNET DMA */
+ heth->TxDesc->Status |= ETH_DMATXDESC_OWN;
+ /* point to next descriptor */
+ heth->TxDesc = (ETH_DMADescTypeDef *)(heth->TxDesc->Buffer2NextDescAddr);
+ }
+ }
+
+ /* When Tx Buffer unavailable flag is set: clear it and resume transmission */
+ if (((heth->Instance)->DMASR & ETH_DMASR_TBUS) != (uint32_t)RESET)
+ {
+ /* Clear TBUS ETHERNET DMA flag */
+ (heth->Instance)->DMASR = ETH_DMASR_TBUS;
+ /* Resume DMA transmission*/
+ (heth->Instance)->DMATPDR = 0U;
+ }
+
+ /* Set ETH HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Checks for received frames.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_GetReceivedFrame(ETH_HandleTypeDef *heth)
+{
+ uint32_t framelength = 0U;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Check the ETH state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Check if segment is not owned by DMA */
+ /* (((heth->RxDesc->Status & ETH_DMARXDESC_OWN) == (uint32_t)RESET) && ((heth->RxDesc->Status & ETH_DMARXDESC_LS) != (uint32_t)RESET)) */
+ if(((heth->RxDesc->Status & ETH_DMARXDESC_OWN) == (uint32_t)RESET))
+ {
+ /* Check if last segment */
+ if(((heth->RxDesc->Status & ETH_DMARXDESC_LS) != (uint32_t)RESET))
+ {
+ /* increment segment count */
+ (heth->RxFrameInfos).SegCount++;
+
+ /* Check if last segment is first segment: one segment contains the frame */
+ if ((heth->RxFrameInfos).SegCount == 1U)
+ {
+ (heth->RxFrameInfos).FSRxDesc =heth->RxDesc;
+ }
+
+ heth->RxFrameInfos.LSRxDesc = heth->RxDesc;
+
+ /* Get the Frame Length of the received packet: substruct 4 bytes of the CRC */
+ framelength = (((heth->RxDesc)->Status & ETH_DMARXDESC_FL) >> ETH_DMARXDESC_FRAMELENGTHSHIFT) - 4U;
+ heth->RxFrameInfos.length = framelength;
+
+ /* Get the address of the buffer start address */
+ heth->RxFrameInfos.buffer = ((heth->RxFrameInfos).FSRxDesc)->Buffer1Addr;
+ /* point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*) ((heth->RxDesc)->Buffer2NextDescAddr);
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+ }
+ /* Check if first segment */
+ else if((heth->RxDesc->Status & ETH_DMARXDESC_FS) != (uint32_t)RESET)
+ {
+ (heth->RxFrameInfos).FSRxDesc = heth->RxDesc;
+ (heth->RxFrameInfos).LSRxDesc = NULL;
+ (heth->RxFrameInfos).SegCount = 1U;
+ /* Point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*) (heth->RxDesc->Buffer2NextDescAddr);
+ }
+ /* Check if intermediate segment */
+ else
+ {
+ (heth->RxFrameInfos).SegCount++;
+ /* Point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*) (heth->RxDesc->Buffer2NextDescAddr);
+ }
+ }
+
+ /* Set ETH HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_ERROR;
+}
+
+/**
+ * @brief Gets the Received frame in interrupt mode.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_GetReceivedFrame_IT(ETH_HandleTypeDef *heth)
+{
+ uint32_t descriptorscancounter = 0U;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set ETH HAL State to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Scan descriptors owned by CPU */
+ while (((heth->RxDesc->Status & ETH_DMARXDESC_OWN) == (uint32_t)RESET) && (descriptorscancounter < ETH_RXBUFNB))
+ {
+ /* Just for security */
+ descriptorscancounter++;
+
+ /* Check if first segment in frame */
+ /* ((heth->RxDesc->Status & ETH_DMARXDESC_FS) != (uint32_t)RESET) && ((heth->RxDesc->Status & ETH_DMARXDESC_LS) == (uint32_t)RESET)) */
+ if((heth->RxDesc->Status & (ETH_DMARXDESC_FS | ETH_DMARXDESC_LS)) == (uint32_t)ETH_DMARXDESC_FS)
+ {
+ heth->RxFrameInfos.FSRxDesc = heth->RxDesc;
+ heth->RxFrameInfos.SegCount = 1U;
+ /* Point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*) (heth->RxDesc->Buffer2NextDescAddr);
+ }
+ /* Check if intermediate segment */
+ /* ((heth->RxDesc->Status & ETH_DMARXDESC_LS) == (uint32_t)RESET)&& ((heth->RxDesc->Status & ETH_DMARXDESC_FS) == (uint32_t)RESET)) */
+ else if ((heth->RxDesc->Status & (ETH_DMARXDESC_LS | ETH_DMARXDESC_FS)) == (uint32_t)RESET)
+ {
+ /* Increment segment count */
+ (heth->RxFrameInfos.SegCount)++;
+ /* Point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*)(heth->RxDesc->Buffer2NextDescAddr);
+ }
+ /* Should be last segment */
+ else
+ {
+ /* Last segment */
+ heth->RxFrameInfos.LSRxDesc = heth->RxDesc;
+
+ /* Increment segment count */
+ (heth->RxFrameInfos.SegCount)++;
+
+ /* Check if last segment is first segment: one segment contains the frame */
+ if ((heth->RxFrameInfos.SegCount) == 1U)
+ {
+ heth->RxFrameInfos.FSRxDesc = heth->RxDesc;
+ }
+
+ /* Get the Frame Length of the received packet: substruct 4 bytes of the CRC */
+ heth->RxFrameInfos.length = (((heth->RxDesc)->Status & ETH_DMARXDESC_FL) >> ETH_DMARXDESC_FRAMELENGTHSHIFT) - 4U;
+
+ /* Get the address of the buffer start address */
+ heth->RxFrameInfos.buffer =((heth->RxFrameInfos).FSRxDesc)->Buffer1Addr;
+
+ /* Point to next descriptor */
+ heth->RxDesc = (ETH_DMADescTypeDef*) (heth->RxDesc->Buffer2NextDescAddr);
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+ }
+ }
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_ERROR;
+}
+
+/**
+ * @brief This function handles ETH interrupt request.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+void HAL_ETH_IRQHandler(ETH_HandleTypeDef *heth)
+{
+ /* Frame received */
+ if (__HAL_ETH_DMA_GET_FLAG(heth, ETH_DMA_FLAG_R))
+ {
+ /* Receive complete callback */
+ HAL_ETH_RxCpltCallback(heth);
+
+ /* Clear the Eth DMA Rx IT pending bits */
+ __HAL_ETH_DMA_CLEAR_IT(heth, ETH_DMA_IT_R);
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ }
+ /* Frame transmitted */
+ else if (__HAL_ETH_DMA_GET_FLAG(heth, ETH_DMA_FLAG_T))
+ {
+ /* Transfer complete callback */
+ HAL_ETH_TxCpltCallback(heth);
+
+ /* Clear the Eth DMA Tx IT pending bits */
+ __HAL_ETH_DMA_CLEAR_IT(heth, ETH_DMA_IT_T);
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+ }
+
+ /* Clear the interrupt flags */
+ __HAL_ETH_DMA_CLEAR_IT(heth, ETH_DMA_IT_NIS);
+
+ /* ETH DMA Error */
+ if(__HAL_ETH_DMA_GET_FLAG(heth, ETH_DMA_FLAG_AIS))
+ {
+ /* Ethernet Error callback */
+ HAL_ETH_ErrorCallback(heth);
+
+ /* Clear the interrupt flags */
+ __HAL_ETH_DMA_CLEAR_IT(heth, ETH_DMA_FLAG_AIS);
+
+ /* Set HAL State to Ready */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+ }
+}
+
+/**
+ * @brief Tx Transfer completed callbacks.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+__weak void HAL_ETH_TxCpltCallback(ETH_HandleTypeDef *heth)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(heth);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_ETH_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callbacks.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+__weak void HAL_ETH_RxCpltCallback(ETH_HandleTypeDef *heth)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(heth);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_ETH_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Ethernet transfer error callbacks
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+__weak void HAL_ETH_ErrorCallback(ETH_HandleTypeDef *heth)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(heth);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_ETH_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Reads a PHY register
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param PHYReg: PHY register address, is the index of one of the 32 PHY register.
+ * This parameter can be one of the following values:
+ * PHY_BCR: Transceiver Basic Control Register,
+ * PHY_BSR: Transceiver Basic Status Register.
+ * More PHY register could be read depending on the used PHY
+ * @param RegValue: PHY register value
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_ReadPHYRegister(ETH_HandleTypeDef *heth, uint16_t PHYReg, uint32_t *RegValue)
+{
+ uint32_t tmpreg1 = 0U;
+ uint32_t tickstart = 0U;
+
+ /* Check parameters */
+ assert_param(IS_ETH_PHY_ADDRESS(heth->Init.PhyAddress));
+
+ /* Check the ETH peripheral state */
+ if(heth->State == HAL_ETH_STATE_BUSY_RD)
+ {
+ return HAL_BUSY;
+ }
+ /* Set ETH HAL State to BUSY_RD */
+ heth->State = HAL_ETH_STATE_BUSY_RD;
+
+ /* Get the ETHERNET MACMIIAR value */
+ tmpreg1 = heth->Instance->MACMIIAR;
+
+ /* Keep only the CSR Clock Range CR[2:0] bits value */
+ tmpreg1 &= ~ETH_MACMIIAR_CR_MASK;
+
+ /* Prepare the MII address register value */
+ tmpreg1 |=(((uint32_t)heth->Init.PhyAddress << 11U) & ETH_MACMIIAR_PA); /* Set the PHY device address */
+ tmpreg1 |=(((uint32_t)PHYReg<<6U) & ETH_MACMIIAR_MR); /* Set the PHY register address */
+ tmpreg1 &= ~ETH_MACMIIAR_MW; /* Set the read mode */
+ tmpreg1 |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
+
+ /* Write the result value into the MII Address register */
+ heth->Instance->MACMIIAR = tmpreg1;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Check for the Busy flag */
+ while((tmpreg1 & ETH_MACMIIAR_MB) == ETH_MACMIIAR_MB)
+ {
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > PHY_READ_TO)
+ {
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_TIMEOUT;
+ }
+
+ tmpreg1 = heth->Instance->MACMIIAR;
+ }
+
+ /* Get MACMIIDR value */
+ *RegValue = (uint16_t)(heth->Instance->MACMIIDR);
+
+ /* Set ETH HAL State to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Writes to a PHY register.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param PHYReg: PHY register address, is the index of one of the 32 PHY register.
+ * This parameter can be one of the following values:
+ * PHY_BCR: Transceiver Control Register.
+ * More PHY register could be written depending on the used PHY
+ * @param RegValue: the value to write
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_WritePHYRegister(ETH_HandleTypeDef *heth, uint16_t PHYReg, uint32_t RegValue)
+{
+ uint32_t tmpreg1 = 0U;
+ uint32_t tickstart = 0U;
+
+ /* Check parameters */
+ assert_param(IS_ETH_PHY_ADDRESS(heth->Init.PhyAddress));
+
+ /* Check the ETH peripheral state */
+ if(heth->State == HAL_ETH_STATE_BUSY_WR)
+ {
+ return HAL_BUSY;
+ }
+ /* Set ETH HAL State to BUSY_WR */
+ heth->State = HAL_ETH_STATE_BUSY_WR;
+
+ /* Get the ETHERNET MACMIIAR value */
+ tmpreg1 = heth->Instance->MACMIIAR;
+
+ /* Keep only the CSR Clock Range CR[2:0] bits value */
+ tmpreg1 &= ~ETH_MACMIIAR_CR_MASK;
+
+ /* Prepare the MII register address value */
+ tmpreg1 |=(((uint32_t)heth->Init.PhyAddress<<11U) & ETH_MACMIIAR_PA); /* Set the PHY device address */
+ tmpreg1 |=(((uint32_t)PHYReg<<6U) & ETH_MACMIIAR_MR); /* Set the PHY register address */
+ tmpreg1 |= ETH_MACMIIAR_MW; /* Set the write mode */
+ tmpreg1 |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
+
+ /* Give the value to the MII data register */
+ heth->Instance->MACMIIDR = (uint16_t)RegValue;
+
+ /* Write the result value into the MII Address register */
+ heth->Instance->MACMIIAR = tmpreg1;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Check for the Busy flag */
+ while((tmpreg1 & ETH_MACMIIAR_MB) == ETH_MACMIIAR_MB)
+ {
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > PHY_WRITE_TO)
+ {
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ return HAL_TIMEOUT;
+ }
+
+ tmpreg1 = heth->Instance->MACMIIAR;
+ }
+
+ /* Set ETH HAL State to READY */
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ETH_Exported_Functions_Group3 Peripheral Control functions
+ * @brief Peripheral Control functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral Control functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Enable MAC and DMA transmission and reception.
+ HAL_ETH_Start();
+ (+) Disable MAC and DMA transmission and reception.
+ HAL_ETH_Stop();
+ (+) Set the MAC configuration in runtime mode
+ HAL_ETH_ConfigMAC();
+ (+) Set the DMA configuration in runtime mode
+ HAL_ETH_ConfigDMA();
+
+@endverbatim
+ * @{
+ */
+
+ /**
+ * @brief Enables Ethernet MAC and DMA reception/transmission
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_Start(ETH_HandleTypeDef *heth)
+{
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Enable transmit state machine of the MAC for transmission on the MII */
+ ETH_MACTransmissionEnable(heth);
+
+ /* Enable receive state machine of the MAC for reception from the MII */
+ ETH_MACReceptionEnable(heth);
+
+ /* Flush Transmit FIFO */
+ ETH_FlushTransmitFIFO(heth);
+
+ /* Start DMA transmission */
+ ETH_DMATransmissionEnable(heth);
+
+ /* Start DMA reception */
+ ETH_DMAReceptionEnable(heth);
+
+ /* Set the ETH state to READY*/
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Stop Ethernet MAC and DMA reception/transmission
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_Stop(ETH_HandleTypeDef *heth)
+{
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State = HAL_ETH_STATE_BUSY;
+
+ /* Stop DMA transmission */
+ ETH_DMATransmissionDisable(heth);
+
+ /* Stop DMA reception */
+ ETH_DMAReceptionDisable(heth);
+
+ /* Disable receive state machine of the MAC for reception from the MII */
+ ETH_MACReceptionDisable(heth);
+
+ /* Flush Transmit FIFO */
+ ETH_FlushTransmitFIFO(heth);
+
+ /* Disable transmit state machine of the MAC for transmission on the MII */
+ ETH_MACTransmissionDisable(heth);
+
+ /* Set the ETH state*/
+ heth->State = HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Set ETH MAC Configuration.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param macconf: MAC Configuration structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_ConfigMAC(ETH_HandleTypeDef *heth, ETH_MACInitTypeDef *macconf)
+{
+ uint32_t tmpreg1 = 0U;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State= HAL_ETH_STATE_BUSY;
+
+ assert_param(IS_ETH_SPEED(heth->Init.Speed));
+ assert_param(IS_ETH_DUPLEX_MODE(heth->Init.DuplexMode));
+
+ if (macconf != NULL)
+ {
+ /* Check the parameters */
+ assert_param(IS_ETH_WATCHDOG(macconf->Watchdog));
+ assert_param(IS_ETH_JABBER(macconf->Jabber));
+ assert_param(IS_ETH_INTER_FRAME_GAP(macconf->InterFrameGap));
+ assert_param(IS_ETH_CARRIER_SENSE(macconf->CarrierSense));
+ assert_param(IS_ETH_RECEIVE_OWN(macconf->ReceiveOwn));
+ assert_param(IS_ETH_LOOPBACK_MODE(macconf->LoopbackMode));
+ assert_param(IS_ETH_CHECKSUM_OFFLOAD(macconf->ChecksumOffload));
+ assert_param(IS_ETH_RETRY_TRANSMISSION(macconf->RetryTransmission));
+ assert_param(IS_ETH_AUTOMATIC_PADCRC_STRIP(macconf->AutomaticPadCRCStrip));
+ assert_param(IS_ETH_BACKOFF_LIMIT(macconf->BackOffLimit));
+ assert_param(IS_ETH_DEFERRAL_CHECK(macconf->DeferralCheck));
+ assert_param(IS_ETH_RECEIVE_ALL(macconf->ReceiveAll));
+ assert_param(IS_ETH_SOURCE_ADDR_FILTER(macconf->SourceAddrFilter));
+ assert_param(IS_ETH_CONTROL_FRAMES(macconf->PassControlFrames));
+ assert_param(IS_ETH_BROADCAST_FRAMES_RECEPTION(macconf->BroadcastFramesReception));
+ assert_param(IS_ETH_DESTINATION_ADDR_FILTER(macconf->DestinationAddrFilter));
+ assert_param(IS_ETH_PROMISCUOUS_MODE(macconf->PromiscuousMode));
+ assert_param(IS_ETH_MULTICAST_FRAMES_FILTER(macconf->MulticastFramesFilter));
+ assert_param(IS_ETH_UNICAST_FRAMES_FILTER(macconf->UnicastFramesFilter));
+ assert_param(IS_ETH_PAUSE_TIME(macconf->PauseTime));
+ assert_param(IS_ETH_ZEROQUANTA_PAUSE(macconf->ZeroQuantaPause));
+ assert_param(IS_ETH_PAUSE_LOW_THRESHOLD(macconf->PauseLowThreshold));
+ assert_param(IS_ETH_UNICAST_PAUSE_FRAME_DETECT(macconf->UnicastPauseFrameDetect));
+ assert_param(IS_ETH_RECEIVE_FLOWCONTROL(macconf->ReceiveFlowControl));
+ assert_param(IS_ETH_TRANSMIT_FLOWCONTROL(macconf->TransmitFlowControl));
+ assert_param(IS_ETH_VLAN_TAG_COMPARISON(macconf->VLANTagComparison));
+ assert_param(IS_ETH_VLAN_TAG_IDENTIFIER(macconf->VLANTagIdentifier));
+
+ /*------------------------ ETHERNET MACCR Configuration --------------------*/
+ /* Get the ETHERNET MACCR value */
+ tmpreg1 = (heth->Instance)->MACCR;
+ /* Clear WD, PCE, PS, TE and RE bits */
+ tmpreg1 &= ETH_MACCR_CLEAR_MASK;
+
+ tmpreg1 |= (uint32_t)(macconf->Watchdog |
+ macconf->Jabber |
+ macconf->InterFrameGap |
+ macconf->CarrierSense |
+ (heth->Init).Speed |
+ macconf->ReceiveOwn |
+ macconf->LoopbackMode |
+ (heth->Init).DuplexMode |
+ macconf->ChecksumOffload |
+ macconf->RetryTransmission |
+ macconf->AutomaticPadCRCStrip |
+ macconf->BackOffLimit |
+ macconf->DeferralCheck);
+
+ /* Write to ETHERNET MACCR */
+ (heth->Instance)->MACCR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account :
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+
+ /*----------------------- ETHERNET MACFFR Configuration --------------------*/
+ /* Write to ETHERNET MACFFR */
+ (heth->Instance)->MACFFR = (uint32_t)(macconf->ReceiveAll |
+ macconf->SourceAddrFilter |
+ macconf->PassControlFrames |
+ macconf->BroadcastFramesReception |
+ macconf->DestinationAddrFilter |
+ macconf->PromiscuousMode |
+ macconf->MulticastFramesFilter |
+ macconf->UnicastFramesFilter);
+
+ /* Wait until the write operation will be taken into account :
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACFFR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACFFR = tmpreg1;
+
+ /*--------------- ETHERNET MACHTHR and MACHTLR Configuration ---------------*/
+ /* Write to ETHERNET MACHTHR */
+ (heth->Instance)->MACHTHR = (uint32_t)macconf->HashTableHigh;
+
+ /* Write to ETHERNET MACHTLR */
+ (heth->Instance)->MACHTLR = (uint32_t)macconf->HashTableLow;
+ /*----------------------- ETHERNET MACFCR Configuration --------------------*/
+
+ /* Get the ETHERNET MACFCR value */
+ tmpreg1 = (heth->Instance)->MACFCR;
+ /* Clear xx bits */
+ tmpreg1 &= ETH_MACFCR_CLEAR_MASK;
+
+ tmpreg1 |= (uint32_t)((macconf->PauseTime << 16U) |
+ macconf->ZeroQuantaPause |
+ macconf->PauseLowThreshold |
+ macconf->UnicastPauseFrameDetect |
+ macconf->ReceiveFlowControl |
+ macconf->TransmitFlowControl);
+
+ /* Write to ETHERNET MACFCR */
+ (heth->Instance)->MACFCR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account :
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACFCR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACFCR = tmpreg1;
+
+ /*----------------------- ETHERNET MACVLANTR Configuration -----------------*/
+ (heth->Instance)->MACVLANTR = (uint32_t)(macconf->VLANTagComparison |
+ macconf->VLANTagIdentifier);
+
+ /* Wait until the write operation will be taken into account :
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACVLANTR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACVLANTR = tmpreg1;
+ }
+ else /* macconf == NULL : here we just configure Speed and Duplex mode */
+ {
+ /*------------------------ ETHERNET MACCR Configuration --------------------*/
+ /* Get the ETHERNET MACCR value */
+ tmpreg1 = (heth->Instance)->MACCR;
+
+ /* Clear FES and DM bits */
+ tmpreg1 &= ~((uint32_t)0x00004800U);
+
+ tmpreg1 |= (uint32_t)(heth->Init.Speed | heth->Init.DuplexMode);
+
+ /* Write to ETHERNET MACCR */
+ (heth->Instance)->MACCR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+ }
+
+ /* Set the ETH state to Ready */
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Sets ETH DMA Configuration.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param dmaconf: DMA Configuration structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_ETH_ConfigDMA(ETH_HandleTypeDef *heth, ETH_DMAInitTypeDef *dmaconf)
+{
+ uint32_t tmpreg1 = 0U;
+
+ /* Process Locked */
+ __HAL_LOCK(heth);
+
+ /* Set the ETH peripheral state to BUSY */
+ heth->State= HAL_ETH_STATE_BUSY;
+
+ /* Check parameters */
+ assert_param(IS_ETH_DROP_TCPIP_CHECKSUM_FRAME(dmaconf->DropTCPIPChecksumErrorFrame));
+ assert_param(IS_ETH_RECEIVE_STORE_FORWARD(dmaconf->ReceiveStoreForward));
+ assert_param(IS_ETH_FLUSH_RECEIVE_FRAME(dmaconf->FlushReceivedFrame));
+ assert_param(IS_ETH_TRANSMIT_STORE_FORWARD(dmaconf->TransmitStoreForward));
+ assert_param(IS_ETH_TRANSMIT_THRESHOLD_CONTROL(dmaconf->TransmitThresholdControl));
+ assert_param(IS_ETH_FORWARD_ERROR_FRAMES(dmaconf->ForwardErrorFrames));
+ assert_param(IS_ETH_FORWARD_UNDERSIZED_GOOD_FRAMES(dmaconf->ForwardUndersizedGoodFrames));
+ assert_param(IS_ETH_RECEIVE_THRESHOLD_CONTROL(dmaconf->ReceiveThresholdControl));
+ assert_param(IS_ETH_SECOND_FRAME_OPERATE(dmaconf->SecondFrameOperate));
+ assert_param(IS_ETH_ADDRESS_ALIGNED_BEATS(dmaconf->AddressAlignedBeats));
+ assert_param(IS_ETH_FIXED_BURST(dmaconf->FixedBurst));
+ assert_param(IS_ETH_RXDMA_BURST_LENGTH(dmaconf->RxDMABurstLength));
+ assert_param(IS_ETH_TXDMA_BURST_LENGTH(dmaconf->TxDMABurstLength));
+ assert_param(IS_ETH_ENHANCED_DESCRIPTOR_FORMAT(dmaconf->EnhancedDescriptorFormat));
+ assert_param(IS_ETH_DMA_DESC_SKIP_LENGTH(dmaconf->DescriptorSkipLength));
+ assert_param(IS_ETH_DMA_ARBITRATION_ROUNDROBIN_RXTX(dmaconf->DMAArbitration));
+
+ /*----------------------- ETHERNET DMAOMR Configuration --------------------*/
+ /* Get the ETHERNET DMAOMR value */
+ tmpreg1 = (heth->Instance)->DMAOMR;
+ /* Clear xx bits */
+ tmpreg1 &= ETH_DMAOMR_CLEAR_MASK;
+
+ tmpreg1 |= (uint32_t)(dmaconf->DropTCPIPChecksumErrorFrame |
+ dmaconf->ReceiveStoreForward |
+ dmaconf->FlushReceivedFrame |
+ dmaconf->TransmitStoreForward |
+ dmaconf->TransmitThresholdControl |
+ dmaconf->ForwardErrorFrames |
+ dmaconf->ForwardUndersizedGoodFrames |
+ dmaconf->ReceiveThresholdControl |
+ dmaconf->SecondFrameOperate);
+
+ /* Write to ETHERNET DMAOMR */
+ (heth->Instance)->DMAOMR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->DMAOMR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->DMAOMR = tmpreg1;
+
+ /*----------------------- ETHERNET DMABMR Configuration --------------------*/
+ (heth->Instance)->DMABMR = (uint32_t)(dmaconf->AddressAlignedBeats |
+ dmaconf->FixedBurst |
+ dmaconf->RxDMABurstLength | /* !! if 4xPBL is selected for Tx or Rx it is applied for the other */
+ dmaconf->TxDMABurstLength |
+ dmaconf->EnhancedDescriptorFormat |
+ (dmaconf->DescriptorSkipLength << 2U) |
+ dmaconf->DMAArbitration |
+ ETH_DMABMR_USP); /* Enable use of separate PBL for Rx and Tx */
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->DMABMR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->DMABMR = tmpreg1;
+
+ /* Set the ETH state to Ready */
+ heth->State= HAL_ETH_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(heth);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ETH_Exported_Functions_Group4 Peripheral State functions
+ * @brief Peripheral State functions
+ *
+ @verbatim
+ ===============================================================================
+ ##### Peripheral State functions #####
+ ===============================================================================
+ [..]
+ This subsection permits to get in run-time the status of the peripheral
+ and the data flow.
+ (+) Get the ETH handle state:
+ HAL_ETH_GetState();
+
+
+ @endverbatim
+ * @{
+ */
+
+/**
+ * @brief Return the ETH HAL state
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval HAL state
+ */
+HAL_ETH_StateTypeDef HAL_ETH_GetState(ETH_HandleTypeDef *heth)
+{
+ /* Return ETH state */
+ return heth->State;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup ETH_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Configures Ethernet MAC and DMA with default parameters.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param err: Ethernet Init error
+ * @retval HAL status
+ */
+static void ETH_MACDMAConfig(ETH_HandleTypeDef *heth, uint32_t err)
+{
+ ETH_MACInitTypeDef macinit;
+ ETH_DMAInitTypeDef dmainit;
+ uint32_t tmpreg1 = 0U;
+
+ if (err != ETH_SUCCESS) /* Auto-negotiation failed */
+ {
+ /* Set Ethernet duplex mode to Full-duplex */
+ (heth->Init).DuplexMode = ETH_MODE_FULLDUPLEX;
+
+ /* Set Ethernet speed to 100M */
+ (heth->Init).Speed = ETH_SPEED_100M;
+ }
+
+ /* Ethernet MAC default initialization **************************************/
+ macinit.Watchdog = ETH_WATCHDOG_ENABLE;
+ macinit.Jabber = ETH_JABBER_ENABLE;
+ macinit.InterFrameGap = ETH_INTERFRAMEGAP_96BIT;
+ macinit.CarrierSense = ETH_CARRIERSENCE_ENABLE;
+ macinit.ReceiveOwn = ETH_RECEIVEOWN_ENABLE;
+ macinit.LoopbackMode = ETH_LOOPBACKMODE_DISABLE;
+ if(heth->Init.ChecksumMode == ETH_CHECKSUM_BY_HARDWARE)
+ {
+ macinit.ChecksumOffload = ETH_CHECKSUMOFFLAOD_ENABLE;
+ }
+ else
+ {
+ macinit.ChecksumOffload = ETH_CHECKSUMOFFLAOD_DISABLE;
+ }
+ macinit.RetryTransmission = ETH_RETRYTRANSMISSION_DISABLE;
+ macinit.AutomaticPadCRCStrip = ETH_AUTOMATICPADCRCSTRIP_DISABLE;
+ macinit.BackOffLimit = ETH_BACKOFFLIMIT_10;
+ macinit.DeferralCheck = ETH_DEFFERRALCHECK_DISABLE;
+ macinit.ReceiveAll = ETH_RECEIVEAll_DISABLE;
+ macinit.SourceAddrFilter = ETH_SOURCEADDRFILTER_DISABLE;
+ macinit.PassControlFrames = ETH_PASSCONTROLFRAMES_BLOCKALL;
+ macinit.BroadcastFramesReception = ETH_BROADCASTFRAMESRECEPTION_ENABLE;
+ macinit.DestinationAddrFilter = ETH_DESTINATIONADDRFILTER_NORMAL;
+ macinit.PromiscuousMode = ETH_PROMISCUOUS_MODE_DISABLE;
+ macinit.MulticastFramesFilter = ETH_MULTICASTFRAMESFILTER_PERFECT;
+ macinit.UnicastFramesFilter = ETH_UNICASTFRAMESFILTER_PERFECT;
+ macinit.HashTableHigh = 0x0U;
+ macinit.HashTableLow = 0x0U;
+ macinit.PauseTime = 0x0U;
+ macinit.ZeroQuantaPause = ETH_ZEROQUANTAPAUSE_DISABLE;
+ macinit.PauseLowThreshold = ETH_PAUSELOWTHRESHOLD_MINUS4;
+ macinit.UnicastPauseFrameDetect = ETH_UNICASTPAUSEFRAMEDETECT_DISABLE;
+ macinit.ReceiveFlowControl = ETH_RECEIVEFLOWCONTROL_DISABLE;
+ macinit.TransmitFlowControl = ETH_TRANSMITFLOWCONTROL_DISABLE;
+ macinit.VLANTagComparison = ETH_VLANTAGCOMPARISON_16BIT;
+ macinit.VLANTagIdentifier = 0x0U;
+
+ /*------------------------ ETHERNET MACCR Configuration --------------------*/
+ /* Get the ETHERNET MACCR value */
+ tmpreg1 = (heth->Instance)->MACCR;
+ /* Clear WD, PCE, PS, TE and RE bits */
+ tmpreg1 &= ETH_MACCR_CLEAR_MASK;
+ /* Set the WD bit according to ETH Watchdog value */
+ /* Set the JD: bit according to ETH Jabber value */
+ /* Set the IFG bit according to ETH InterFrameGap value */
+ /* Set the DCRS bit according to ETH CarrierSense value */
+ /* Set the FES bit according to ETH Speed value */
+ /* Set the DO bit according to ETH ReceiveOwn value */
+ /* Set the LM bit according to ETH LoopbackMode value */
+ /* Set the DM bit according to ETH Mode value */
+ /* Set the IPCO bit according to ETH ChecksumOffload value */
+ /* Set the DR bit according to ETH RetryTransmission value */
+ /* Set the ACS bit according to ETH AutomaticPadCRCStrip value */
+ /* Set the BL bit according to ETH BackOffLimit value */
+ /* Set the DC bit according to ETH DeferralCheck value */
+ tmpreg1 |= (uint32_t)(macinit.Watchdog |
+ macinit.Jabber |
+ macinit.InterFrameGap |
+ macinit.CarrierSense |
+ (heth->Init).Speed |
+ macinit.ReceiveOwn |
+ macinit.LoopbackMode |
+ (heth->Init).DuplexMode |
+ macinit.ChecksumOffload |
+ macinit.RetryTransmission |
+ macinit.AutomaticPadCRCStrip |
+ macinit.BackOffLimit |
+ macinit.DeferralCheck);
+
+ /* Write to ETHERNET MACCR */
+ (heth->Instance)->MACCR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+
+ /*----------------------- ETHERNET MACFFR Configuration --------------------*/
+ /* Set the RA bit according to ETH ReceiveAll value */
+ /* Set the SAF and SAIF bits according to ETH SourceAddrFilter value */
+ /* Set the PCF bit according to ETH PassControlFrames value */
+ /* Set the DBF bit according to ETH BroadcastFramesReception value */
+ /* Set the DAIF bit according to ETH DestinationAddrFilter value */
+ /* Set the PR bit according to ETH PromiscuousMode value */
+ /* Set the PM, HMC and HPF bits according to ETH MulticastFramesFilter value */
+ /* Set the HUC and HPF bits according to ETH UnicastFramesFilter value */
+ /* Write to ETHERNET MACFFR */
+ (heth->Instance)->MACFFR = (uint32_t)(macinit.ReceiveAll |
+ macinit.SourceAddrFilter |
+ macinit.PassControlFrames |
+ macinit.BroadcastFramesReception |
+ macinit.DestinationAddrFilter |
+ macinit.PromiscuousMode |
+ macinit.MulticastFramesFilter |
+ macinit.UnicastFramesFilter);
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACFFR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACFFR = tmpreg1;
+
+ /*--------------- ETHERNET MACHTHR and MACHTLR Configuration --------------*/
+ /* Write to ETHERNET MACHTHR */
+ (heth->Instance)->MACHTHR = (uint32_t)macinit.HashTableHigh;
+
+ /* Write to ETHERNET MACHTLR */
+ (heth->Instance)->MACHTLR = (uint32_t)macinit.HashTableLow;
+ /*----------------------- ETHERNET MACFCR Configuration -------------------*/
+
+ /* Get the ETHERNET MACFCR value */
+ tmpreg1 = (heth->Instance)->MACFCR;
+ /* Clear xx bits */
+ tmpreg1 &= ETH_MACFCR_CLEAR_MASK;
+
+ /* Set the PT bit according to ETH PauseTime value */
+ /* Set the DZPQ bit according to ETH ZeroQuantaPause value */
+ /* Set the PLT bit according to ETH PauseLowThreshold value */
+ /* Set the UP bit according to ETH UnicastPauseFrameDetect value */
+ /* Set the RFE bit according to ETH ReceiveFlowControl value */
+ /* Set the TFE bit according to ETH TransmitFlowControl value */
+ tmpreg1 |= (uint32_t)((macinit.PauseTime << 16U) |
+ macinit.ZeroQuantaPause |
+ macinit.PauseLowThreshold |
+ macinit.UnicastPauseFrameDetect |
+ macinit.ReceiveFlowControl |
+ macinit.TransmitFlowControl);
+
+ /* Write to ETHERNET MACFCR */
+ (heth->Instance)->MACFCR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACFCR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACFCR = tmpreg1;
+
+ /*----------------------- ETHERNET MACVLANTR Configuration ----------------*/
+ /* Set the ETV bit according to ETH VLANTagComparison value */
+ /* Set the VL bit according to ETH VLANTagIdentifier value */
+ (heth->Instance)->MACVLANTR = (uint32_t)(macinit.VLANTagComparison |
+ macinit.VLANTagIdentifier);
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACVLANTR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACVLANTR = tmpreg1;
+
+ /* Ethernet DMA default initialization ************************************/
+ dmainit.DropTCPIPChecksumErrorFrame = ETH_DROPTCPIPCHECKSUMERRORFRAME_ENABLE;
+ dmainit.ReceiveStoreForward = ETH_RECEIVESTOREFORWARD_ENABLE;
+ dmainit.FlushReceivedFrame = ETH_FLUSHRECEIVEDFRAME_ENABLE;
+ dmainit.TransmitStoreForward = ETH_TRANSMITSTOREFORWARD_ENABLE;
+ dmainit.TransmitThresholdControl = ETH_TRANSMITTHRESHOLDCONTROL_64BYTES;
+ dmainit.ForwardErrorFrames = ETH_FORWARDERRORFRAMES_DISABLE;
+ dmainit.ForwardUndersizedGoodFrames = ETH_FORWARDUNDERSIZEDGOODFRAMES_DISABLE;
+ dmainit.ReceiveThresholdControl = ETH_RECEIVEDTHRESHOLDCONTROL_64BYTES;
+ dmainit.SecondFrameOperate = ETH_SECONDFRAMEOPERARTE_ENABLE;
+ dmainit.AddressAlignedBeats = ETH_ADDRESSALIGNEDBEATS_ENABLE;
+ dmainit.FixedBurst = ETH_FIXEDBURST_ENABLE;
+ dmainit.RxDMABurstLength = ETH_RXDMABURSTLENGTH_32BEAT;
+ dmainit.TxDMABurstLength = ETH_TXDMABURSTLENGTH_32BEAT;
+ dmainit.EnhancedDescriptorFormat = ETH_DMAENHANCEDDESCRIPTOR_ENABLE;
+ dmainit.DescriptorSkipLength = 0x0U;
+ dmainit.DMAArbitration = ETH_DMAARBITRATION_ROUNDROBIN_RXTX_1_1;
+
+ /* Get the ETHERNET DMAOMR value */
+ tmpreg1 = (heth->Instance)->DMAOMR;
+ /* Clear xx bits */
+ tmpreg1 &= ETH_DMAOMR_CLEAR_MASK;
+
+ /* Set the DT bit according to ETH DropTCPIPChecksumErrorFrame value */
+ /* Set the RSF bit according to ETH ReceiveStoreForward value */
+ /* Set the DFF bit according to ETH FlushReceivedFrame value */
+ /* Set the TSF bit according to ETH TransmitStoreForward value */
+ /* Set the TTC bit according to ETH TransmitThresholdControl value */
+ /* Set the FEF bit according to ETH ForwardErrorFrames value */
+ /* Set the FUF bit according to ETH ForwardUndersizedGoodFrames value */
+ /* Set the RTC bit according to ETH ReceiveThresholdControl value */
+ /* Set the OSF bit according to ETH SecondFrameOperate value */
+ tmpreg1 |= (uint32_t)(dmainit.DropTCPIPChecksumErrorFrame |
+ dmainit.ReceiveStoreForward |
+ dmainit.FlushReceivedFrame |
+ dmainit.TransmitStoreForward |
+ dmainit.TransmitThresholdControl |
+ dmainit.ForwardErrorFrames |
+ dmainit.ForwardUndersizedGoodFrames |
+ dmainit.ReceiveThresholdControl |
+ dmainit.SecondFrameOperate);
+
+ /* Write to ETHERNET DMAOMR */
+ (heth->Instance)->DMAOMR = (uint32_t)tmpreg1;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->DMAOMR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->DMAOMR = tmpreg1;
+
+ /*----------------------- ETHERNET DMABMR Configuration ------------------*/
+ /* Set the AAL bit according to ETH AddressAlignedBeats value */
+ /* Set the FB bit according to ETH FixedBurst value */
+ /* Set the RPBL and 4*PBL bits according to ETH RxDMABurstLength value */
+ /* Set the PBL and 4*PBL bits according to ETH TxDMABurstLength value */
+ /* Set the Enhanced DMA descriptors bit according to ETH EnhancedDescriptorFormat value*/
+ /* Set the DSL bit according to ETH DesciptorSkipLength value */
+ /* Set the PR and DA bits according to ETH DMAArbitration value */
+ (heth->Instance)->DMABMR = (uint32_t)(dmainit.AddressAlignedBeats |
+ dmainit.FixedBurst |
+ dmainit.RxDMABurstLength | /* !! if 4xPBL is selected for Tx or Rx it is applied for the other */
+ dmainit.TxDMABurstLength |
+ dmainit.EnhancedDescriptorFormat |
+ (dmainit.DescriptorSkipLength << 2U) |
+ dmainit.DMAArbitration |
+ ETH_DMABMR_USP); /* Enable use of separate PBL for Rx and Tx */
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->DMABMR;
+ HAL_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->DMABMR = tmpreg1;
+
+ if((heth->Init).RxMode == ETH_RXINTERRUPT_MODE)
+ {
+ /* Enable the Ethernet Rx Interrupt */
+ __HAL_ETH_DMA_ENABLE_IT((heth), ETH_DMA_IT_NIS | ETH_DMA_IT_R);
+ }
+
+ /* Initialize MAC address in ethernet MAC */
+ ETH_MACAddressConfig(heth, ETH_MAC_ADDRESS0, heth->Init.MACAddr);
+}
+
+/**
+ * @brief Configures the selected MAC address.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @param MacAddr: The MAC address to configure
+ * This parameter can be one of the following values:
+ * @arg ETH_MAC_Address0: MAC Address0
+ * @arg ETH_MAC_Address1: MAC Address1
+ * @arg ETH_MAC_Address2: MAC Address2
+ * @arg ETH_MAC_Address3: MAC Address3
+ * @param Addr: Pointer to MAC address buffer data (6 bytes)
+ * @retval HAL status
+ */
+static void ETH_MACAddressConfig(ETH_HandleTypeDef *heth, uint32_t MacAddr, uint8_t *Addr)
+{
+ uint32_t tmpreg1;
+
+ /* Check the parameters */
+ assert_param(IS_ETH_MAC_ADDRESS0123(MacAddr));
+
+ /* Calculate the selected MAC address high register */
+ tmpreg1 = ((uint32_t)Addr[5U] << 8U) | (uint32_t)Addr[4U];
+ /* Load the selected MAC address high register */
+ (*(__IO uint32_t *)((uint32_t)(ETH_MAC_ADDR_HBASE + MacAddr))) = tmpreg1;
+ /* Calculate the selected MAC address low register */
+ tmpreg1 = ((uint32_t)Addr[3U] << 24U) | ((uint32_t)Addr[2U] << 16U) | ((uint32_t)Addr[1U] << 8U) | Addr[0U];
+
+ /* Load the selected MAC address low register */
+ (*(__IO uint32_t *)((uint32_t)(ETH_MAC_ADDR_LBASE + MacAddr))) = tmpreg1;
+}
+
+/**
+ * @brief Enables the MAC transmission.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_MACTransmissionEnable(ETH_HandleTypeDef *heth)
+{
+ __IO uint32_t tmpreg1 = 0U;
+
+ /* Enable the MAC transmission */
+ (heth->Instance)->MACCR |= ETH_MACCR_TE;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ ETH_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+}
+
+/**
+ * @brief Disables the MAC transmission.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_MACTransmissionDisable(ETH_HandleTypeDef *heth)
+{
+ __IO uint32_t tmpreg1 = 0U;
+
+ /* Disable the MAC transmission */
+ (heth->Instance)->MACCR &= ~ETH_MACCR_TE;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ ETH_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+}
+
+/**
+ * @brief Enables the MAC reception.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_MACReceptionEnable(ETH_HandleTypeDef *heth)
+{
+ __IO uint32_t tmpreg1 = 0U;
+
+ /* Enable the MAC reception */
+ (heth->Instance)->MACCR |= ETH_MACCR_RE;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ ETH_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+}
+
+/**
+ * @brief Disables the MAC reception.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_MACReceptionDisable(ETH_HandleTypeDef *heth)
+{
+ __IO uint32_t tmpreg1 = 0U;
+
+ /* Disable the MAC reception */
+ (heth->Instance)->MACCR &= ~ETH_MACCR_RE;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->MACCR;
+ ETH_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->MACCR = tmpreg1;
+}
+
+/**
+ * @brief Enables the DMA transmission.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_DMATransmissionEnable(ETH_HandleTypeDef *heth)
+{
+ /* Enable the DMA transmission */
+ (heth->Instance)->DMAOMR |= ETH_DMAOMR_ST;
+}
+
+/**
+ * @brief Disables the DMA transmission.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_DMATransmissionDisable(ETH_HandleTypeDef *heth)
+{
+ /* Disable the DMA transmission */
+ (heth->Instance)->DMAOMR &= ~ETH_DMAOMR_ST;
+}
+
+/**
+ * @brief Enables the DMA reception.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_DMAReceptionEnable(ETH_HandleTypeDef *heth)
+{
+ /* Enable the DMA reception */
+ (heth->Instance)->DMAOMR |= ETH_DMAOMR_SR;
+}
+
+/**
+ * @brief Disables the DMA reception.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_DMAReceptionDisable(ETH_HandleTypeDef *heth)
+{
+ /* Disable the DMA reception */
+ (heth->Instance)->DMAOMR &= ~ETH_DMAOMR_SR;
+}
+
+/**
+ * @brief Clears the ETHERNET transmit FIFO.
+ * @param heth: pointer to a ETH_HandleTypeDef structure that contains
+ * the configuration information for ETHERNET module
+ * @retval None
+ */
+static void ETH_FlushTransmitFIFO(ETH_HandleTypeDef *heth)
+{
+ __IO uint32_t tmpreg1 = 0U;
+
+ /* Set the Flush Transmit FIFO bit */
+ (heth->Instance)->DMAOMR |= ETH_DMAOMR_FTF;
+
+ /* Wait until the write operation will be taken into account:
+ at least four TX_CLK/RX_CLK clock cycles */
+ tmpreg1 = (heth->Instance)->DMAOMR;
+ ETH_Delay(ETH_REG_WRITE_DELAY);
+ (heth->Instance)->DMAOMR = tmpreg1;
+}
+
+/**
+ * @brief This function provides delay (in milliseconds) based on CPU cycles method.
+ * @param mdelay: specifies the delay time length, in milliseconds.
+ * @retval None
+ */
+static void ETH_Delay(uint32_t mdelay)
+{
+ __IO uint32_t Delay = mdelay * (SystemCoreClock / 8U / 1000U);
+ do
+ {
+ __NOP();
+ }
+ while (Delay --);
+}
+
+/**
+ * @}
+ */
+
+#endif /* STM32F207xx || STM32F217xx */
+#endif /* HAL_ETH_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
