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diff Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c @ 128:c78bcbd5deda FlipDisplay
Added current STM32 standandard libraries in version independend folder structure
| author | Ideenmodellierer |
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| date | Sun, 17 Feb 2019 21:12:22 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c Sun Feb 17 21:12:22 2019 +0100 @@ -0,0 +1,2062 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_eth.c + * @author MCD Application Team + * @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. + + -@- The PTP protocol and the DMA descriptors ring mode are not supported + in this driver + + @endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2017 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 "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +/** @defgroup ETH ETH + * @brief ETH HAL module driver + * @{ + */ + +#ifdef HAL_ETH_MODULE_ENABLED + +#if defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) ||\ + defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F469xx) || defined(STM32F479xx) + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @defgroup ETH_Private_Constants ETH Private Constants + * @{ + */ +#define ETH_TIMEOUT_SWRESET 500U +#define ETH_TIMEOUT_LINKED_STATE 5000U +#define ETH_TIMEOUT_AUTONEGO_COMPLETED 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 if((hclk >= 100000000U)&&(hclk < 150000000U)) + { + /* CSR Clock Range between 100-150 MHz */ + tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div62; + } + else /* ((hclk >= 150000000)&&(hclk <= 183000000)) */ + { + /* CSR Clock Range between 150-183 MHz */ + tmpreg1 |= (uint32_t)ETH_MACMIIAR_CR_Div102; + } + + /* 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 >> 3U) | + (uint16_t)((heth->Init).Speed >> 1U))) != 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-1U)) + { + /* Set next descriptor address register with next descriptor base address */ + dmatxdesc->Buffer2NextDescAddr = (uint32_t)(DMATxDescTab+i+1U); + } + 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+1U); + } + 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 &= ~(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; + + /* Prevent unused argument(s) compilation warning */ + UNUSED(heth); + + /* 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 /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx ||\ + STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx */ +#endif /* HAL_ETH_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/