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@@ -0,0 +1,2699 @@
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+/**
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+ ******************************************************************************
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+ * @file stm32f2x7_eth.c
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+ * @author MCD Application Team
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+ * @version V1.0.0
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+ * @date 25-April-2011
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+ * @brief This file is the low level driver for STM32F2x7 Ethernet Controller.
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+ * This driver does not include low level functions for PTP time-stamp.
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+ ******************************************************************************
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+ * @attention
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+ *
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+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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+ *
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+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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+ ******************************************************************************
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+ */
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+
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+/* Includes ------------------------------------------------------------------*/
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+#include "stm32f2x7_eth.h"
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+#include "stm32f2xx_rcc.h"
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+#include <string.h>
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+
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+/** @addtogroup STM32F2x7_ETH_Driver
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+ * @brief ETH driver modules
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+ * @{
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+ */
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+
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+/** @defgroup ETH_Private_TypesDefinitions
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+ * @{
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+ */
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+/**
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+ * @}
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+ */
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+
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+
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+/** @defgroup ETH_Private_Defines
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+ * @{
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+ */
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+
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+/**
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+ * @}
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+ */
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+
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+/** @defgroup ETH_Private_Macros
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+ * @{
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+ */
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+/**
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+ * @}
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+ */
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+
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+/** @defgroup ETH_Private_Variables
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+ * @{
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+ */
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+
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+#if defined (__CC_ARM) /*!< ARM Compiler */
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+ __align(4)
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+ ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB];/* Ethernet Rx MA Descriptor */
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+ __align(4)
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+ ETH_DMADESCTypeDef DMATxDscrTab[ETH_TXBUFNB];/* Ethernet Tx DMA Descriptor */
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+ __align(4)
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+ uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE]; /* Ethernet Receive Buffer */
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+ __align(4)
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+ uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE]; /* Ethernet Transmit Buffer */
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+
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+#elif defined ( __ICCARM__ ) /*!< IAR Compiler */
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+ #pragma data_alignment=4
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+ ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB];/* Ethernet Rx MA Descriptor */
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+ #pragma data_alignment=4
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+ ETH_DMADESCTypeDef DMATxDscrTab[ETH_TXBUFNB];/* Ethernet Tx DMA Descriptor */
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+ #pragma data_alignment=4
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+ uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE]; /* Ethernet Receive Buffer */
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+ #pragma data_alignment=4
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+ uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE]; /* Ethernet Transmit Buffer */
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+
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+#elif defined (__GNUC__) /*!< GNU Compiler */
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+ ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB] __attribute__ ((aligned (4))); /* Ethernet Rx DMA Descriptor */
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+ ETH_DMADESCTypeDef DMATxDscrTab[ETH_TXBUFNB] __attribute__ ((aligned (4))); /* Ethernet Tx DMA Descriptor */
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+ uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE] __attribute__ ((aligned (4))); /* Ethernet Receive Buffer */
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+ uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE] __attribute__ ((aligned (4))); /* Ethernet Transmit Buffer */
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+
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+#elif defined (__TASKING__) /*!< TASKING Compiler */
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+ __align(4)
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+ ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB];/* Ethernet Rx MA Descriptor */
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+ __align(4)
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+ ETH_DMADESCTypeDef DMATxDscrTab[ETH_TXBUFNB];/* Ethernet Tx DMA Descriptor */
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+ __align(4)
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+ uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE]; /* Ethernet Receive Buffer */
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+ __align(4)
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+ uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE]; /* Ethernet Transmit Buffer */
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+
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+#endif /* __CC_ARM */
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+
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+
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+/* Global pointers on Tx and Rx descriptor used to track transmit and receive descriptors */
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+__IO ETH_DMADESCTypeDef *DMATxDescToSet;
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+__IO ETH_DMADESCTypeDef *DMARxDescToGet;
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+
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+
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+/* Structure used to hold the last received packet descriptors info */
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+
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+ETH_DMA_Rx_Frame_infos RX_Frame_Descriptor;
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+__IO ETH_DMA_Rx_Frame_infos *DMA_RX_FRAME_infos;
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+__IO uint32_t Frame_Rx_index;
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+
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+
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+/**
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+ * @}
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+ */
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+
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+/** @defgroup ETH_Private_FunctionPrototypes
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+ * @{
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+ */
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+/**
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+ * @}
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+ */
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+
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+/** @defgroup ETH_Private_Functions
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+ * @{
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+ */
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+
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+#ifndef USE_Delay
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+/**
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+ * @brief Inserts a delay time.
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+ * @param nCount: specifies the delay time length.
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+ * @retval None
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+ */
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+static void ETH_Delay(__IO uint32_t nCount)
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+{
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+ __IO uint32_t index = 0;
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+ for(index = nCount; index != 0; index--)
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+ {
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+ }
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+}
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+#endif /* USE_Delay*/
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+
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+
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+
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+/******************************************************************************/
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+/* Global ETH MAC/DMA functions */
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+/******************************************************************************/
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+
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+/**
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+ * @brief Deinitializes the ETHERNET peripheral registers to their default reset values.
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+ * @param None
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+ * @retval None
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+ */
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+void ETH_DeInit(void)
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+{
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+ RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_ETH_MAC, ENABLE);
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+ RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_ETH_MAC, DISABLE);
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+}
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+
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+
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+/**
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+ * @brief Fills each ETH_InitStruct member with its default value.
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+ * @param ETH_InitStruct: pointer to a ETH_InitTypeDef structure which will be initialized.
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+ * @retval None
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+ */
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+void ETH_StructInit(ETH_InitTypeDef* ETH_InitStruct)
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+{
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+ /* ETH_InitStruct members default value */
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+ /*------------------------ MAC Configuration ---------------------------*/
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+
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+ /* PHY Auto-negotiation enabled */
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+ ETH_InitStruct->ETH_AutoNegotiation = ETH_AutoNegotiation_Enable;
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+ /* MAC watchdog enabled: cuts-off long frame */
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+ ETH_InitStruct->ETH_Watchdog = ETH_Watchdog_Enable;
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+ /* MAC Jabber enabled in Half-duplex mode */
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+ ETH_InitStruct->ETH_Jabber = ETH_Jabber_Enable;
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+ /* Ethernet interframe gap set to 96 bits */
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+ ETH_InitStruct->ETH_InterFrameGap = ETH_InterFrameGap_96Bit;
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+ /* Carrier Sense Enabled in Half-Duplex mode */
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+ ETH_InitStruct->ETH_CarrierSense = ETH_CarrierSense_Enable;
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+ /* PHY speed configured to 100Mbit/s */
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+ ETH_InitStruct->ETH_Speed = ETH_Speed_100M;
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+ /* Receive own Frames in Half-Duplex mode enabled */
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+ ETH_InitStruct->ETH_ReceiveOwn = ETH_ReceiveOwn_Enable;
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+ /* MAC MII loopback disabled */
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+ ETH_InitStruct->ETH_LoopbackMode = ETH_LoopbackMode_Disable;
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+ /* Full-Duplex mode selected */
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+ ETH_InitStruct->ETH_Mode = ETH_Mode_FullDuplex;
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+ /* IPv4 and TCP/UDP/ICMP frame Checksum Offload disabled */
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+ ETH_InitStruct->ETH_ChecksumOffload = ETH_ChecksumOffload_Disable;
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+ /* Retry Transmission enabled for half-duplex mode */
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+ ETH_InitStruct->ETH_RetryTransmission = ETH_RetryTransmission_Enable;
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+ /* Automatic PAD/CRC strip disabled*/
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+ ETH_InitStruct->ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
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+ /* half-duplex mode retransmission Backoff time_limit = 10 slot times*/
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+ ETH_InitStruct->ETH_BackOffLimit = ETH_BackOffLimit_10;
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+ /* half-duplex mode Deferral check disabled */
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+ ETH_InitStruct->ETH_DeferralCheck = ETH_DeferralCheck_Disable;
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+ /* Receive all frames disabled */
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+ ETH_InitStruct->ETH_ReceiveAll = ETH_ReceiveAll_Disable;
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+ /* Source address filtering (on the optional MAC addresses) disabled */
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+ ETH_InitStruct->ETH_SourceAddrFilter = ETH_SourceAddrFilter_Disable;
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+ /* Do not forward control frames that do not pass the address filtering */
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+ ETH_InitStruct->ETH_PassControlFrames = ETH_PassControlFrames_BlockAll;
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+ /* Disable reception of Broadcast frames */
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+ ETH_InitStruct->ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Disable;
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+ /* Normal Destination address filtering (not reverse addressing) */
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+ ETH_InitStruct->ETH_DestinationAddrFilter = ETH_DestinationAddrFilter_Normal;
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+ /* Promiscuous address filtering mode disabled */
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+ ETH_InitStruct->ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
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+ /* Perfect address filtering for multicast addresses */
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+ ETH_InitStruct->ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
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+ /* Perfect address filtering for unicast addresses */
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+ ETH_InitStruct->ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
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+ /* Initialize hash table high and low regs */
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+ ETH_InitStruct->ETH_HashTableHigh = 0x0;
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+ ETH_InitStruct->ETH_HashTableLow = 0x0;
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+ /* Flow control config (flow control disabled)*/
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+ ETH_InitStruct->ETH_PauseTime = 0x0;
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+ ETH_InitStruct->ETH_ZeroQuantaPause = ETH_ZeroQuantaPause_Disable;
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+ ETH_InitStruct->ETH_PauseLowThreshold = ETH_PauseLowThreshold_Minus4;
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+ ETH_InitStruct->ETH_UnicastPauseFrameDetect = ETH_UnicastPauseFrameDetect_Disable;
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+ ETH_InitStruct->ETH_ReceiveFlowControl = ETH_ReceiveFlowControl_Disable;
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+ ETH_InitStruct->ETH_TransmitFlowControl = ETH_TransmitFlowControl_Disable;
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+ /* VLANtag config (VLAN field not checked) */
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+ ETH_InitStruct->ETH_VLANTagComparison = ETH_VLANTagComparison_16Bit;
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+ ETH_InitStruct->ETH_VLANTagIdentifier = 0x0;
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+
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+ /*---------------------- DMA Configuration -------------------------------*/
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+
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+ /* Drops frames with with TCP/IP checksum errors */
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+ ETH_InitStruct->ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Disable;
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+ /* Store and forward mode enabled for receive */
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+ ETH_InitStruct->ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Enable;
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+ /* Flush received frame that created FIFO overflow */
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+ ETH_InitStruct->ETH_FlushReceivedFrame = ETH_FlushReceivedFrame_Enable;
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+ /* Store and forward mode enabled for transmit */
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+ ETH_InitStruct->ETH_TransmitStoreForward = ETH_TransmitStoreForward_Enable;
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+ /* Threshold TXFIFO level set to 64 bytes (used when threshold mode is enabled) */
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+ ETH_InitStruct->ETH_TransmitThresholdControl = ETH_TransmitThresholdControl_64Bytes;
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+ /* Disable forwarding frames with errors (short frames, CRC,...)*/
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+ ETH_InitStruct->ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Disable;
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+ /* Disable undersized good frames */
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+ ETH_InitStruct->ETH_ForwardUndersizedGoodFrames = ETH_ForwardUndersizedGoodFrames_Disable;
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+ /* Threshold RXFIFO level set to 64 bytes (used when Cut-through mode is enabled) */
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+ ETH_InitStruct->ETH_ReceiveThresholdControl = ETH_ReceiveThresholdControl_64Bytes;
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+ /* Disable Operate on second frame (transmit a second frame to FIFO without
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+ waiting status of previous frame*/
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+ ETH_InitStruct->ETH_SecondFrameOperate = ETH_SecondFrameOperate_Disable;
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+ /* DMA works on 32-bit aligned start source and destinations addresses */
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+ ETH_InitStruct->ETH_AddressAlignedBeats = ETH_AddressAlignedBeats_Enable;
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+ /* Enabled Fixed Burst Mode (mix of INC4, INC8, INC16 and SINGLE DMA transactions */
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+ ETH_InitStruct->ETH_FixedBurst = ETH_FixedBurst_Enable;
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+ /* DMA transfer max burst length = 32 beats = 32 x 32bits */
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+ ETH_InitStruct->ETH_RxDMABurstLength = ETH_RxDMABurstLength_32Beat;
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+ ETH_InitStruct->ETH_TxDMABurstLength = ETH_TxDMABurstLength_32Beat;
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+ /* DMA Ring mode skip length = 0 */
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+ ETH_InitStruct->ETH_DescriptorSkipLength = 0x0;
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+ /* Equal priority (round-robin) between transmit and receive DMA engines */
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+ ETH_InitStruct->ETH_DMAArbitration = ETH_DMAArbitration_RoundRobin_RxTx_1_1;
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+}
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+
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+
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+/**
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+ * @brief Initializes the ETHERNET peripheral according to the specified
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+ * parameters in the ETH_InitStruct .
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+ * @param ETH_InitStruct: pointer to a ETH_InitTypeDef structure that contains
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+ * the configuration information for the specified ETHERNET peripheral.
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+ * @param PHYAddress: external PHY address
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+ * @retval ETH_ERROR: Ethernet initialization failed
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+ * ETH_SUCCESS: Ethernet successfully initialized
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+ */
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+uint32_t ETH_Init(ETH_InitTypeDef* ETH_InitStruct, uint16_t PHYAddress)
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+{
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+ uint32_t RegValue = 0, tmpreg = 0;
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+ __IO uint32_t i = 0;
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+ RCC_ClocksTypeDef rcc_clocks;
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+ uint32_t hclk = 60000000;
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+ __IO uint32_t timeout = 0;
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+ /* Check the parameters */
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+ /* MAC --------------------------*/
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+ assert_param(IS_ETH_AUTONEGOTIATION(ETH_InitStruct->ETH_AutoNegotiation));
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+ assert_param(IS_ETH_WATCHDOG(ETH_InitStruct->ETH_Watchdog));
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+ assert_param(IS_ETH_JABBER(ETH_InitStruct->ETH_Jabber));
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+ assert_param(IS_ETH_INTER_FRAME_GAP(ETH_InitStruct->ETH_InterFrameGap));
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+ assert_param(IS_ETH_CARRIER_SENSE(ETH_InitStruct->ETH_CarrierSense));
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+ assert_param(IS_ETH_SPEED(ETH_InitStruct->ETH_Speed));
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+ assert_param(IS_ETH_RECEIVE_OWN(ETH_InitStruct->ETH_ReceiveOwn));
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+ assert_param(IS_ETH_LOOPBACK_MODE(ETH_InitStruct->ETH_LoopbackMode));
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+ assert_param(IS_ETH_DUPLEX_MODE(ETH_InitStruct->ETH_Mode));
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+ assert_param(IS_ETH_CHECKSUM_OFFLOAD(ETH_InitStruct->ETH_ChecksumOffload));
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+ assert_param(IS_ETH_RETRY_TRANSMISSION(ETH_InitStruct->ETH_RetryTransmission));
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+ assert_param(IS_ETH_AUTOMATIC_PADCRC_STRIP(ETH_InitStruct->ETH_AutomaticPadCRCStrip));
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+ assert_param(IS_ETH_BACKOFF_LIMIT(ETH_InitStruct->ETH_BackOffLimit));
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+ assert_param(IS_ETH_DEFERRAL_CHECK(ETH_InitStruct->ETH_DeferralCheck));
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+ assert_param(IS_ETH_RECEIVE_ALL(ETH_InitStruct->ETH_ReceiveAll));
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+ assert_param(IS_ETH_SOURCE_ADDR_FILTER(ETH_InitStruct->ETH_SourceAddrFilter));
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+ assert_param(IS_ETH_CONTROL_FRAMES(ETH_InitStruct->ETH_PassControlFrames));
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+ assert_param(IS_ETH_BROADCAST_FRAMES_RECEPTION(ETH_InitStruct->ETH_BroadcastFramesReception));
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+ assert_param(IS_ETH_DESTINATION_ADDR_FILTER(ETH_InitStruct->ETH_DestinationAddrFilter));
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+ assert_param(IS_ETH_PROMISCIOUS_MODE(ETH_InitStruct->ETH_PromiscuousMode));
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+ assert_param(IS_ETH_MULTICAST_FRAMES_FILTER(ETH_InitStruct->ETH_MulticastFramesFilter));
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+ assert_param(IS_ETH_UNICAST_FRAMES_FILTER(ETH_InitStruct->ETH_UnicastFramesFilter));
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+ assert_param(IS_ETH_PAUSE_TIME(ETH_InitStruct->ETH_PauseTime));
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+ assert_param(IS_ETH_ZEROQUANTA_PAUSE(ETH_InitStruct->ETH_ZeroQuantaPause));
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+ assert_param(IS_ETH_PAUSE_LOW_THRESHOLD(ETH_InitStruct->ETH_PauseLowThreshold));
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+ assert_param(IS_ETH_UNICAST_PAUSE_FRAME_DETECT(ETH_InitStruct->ETH_UnicastPauseFrameDetect));
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+ assert_param(IS_ETH_RECEIVE_FLOWCONTROL(ETH_InitStruct->ETH_ReceiveFlowControl));
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+ assert_param(IS_ETH_TRANSMIT_FLOWCONTROL(ETH_InitStruct->ETH_TransmitFlowControl));
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+ assert_param(IS_ETH_VLAN_TAG_COMPARISON(ETH_InitStruct->ETH_VLANTagComparison));
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+ assert_param(IS_ETH_VLAN_TAG_IDENTIFIER(ETH_InitStruct->ETH_VLANTagIdentifier));
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+ /* DMA --------------------------*/
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+ assert_param(IS_ETH_DROP_TCPIP_CHECKSUM_FRAME(ETH_InitStruct->ETH_DropTCPIPChecksumErrorFrame));
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+ assert_param(IS_ETH_RECEIVE_STORE_FORWARD(ETH_InitStruct->ETH_ReceiveStoreForward));
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+ assert_param(IS_ETH_FLUSH_RECEIVE_FRAME(ETH_InitStruct->ETH_FlushReceivedFrame));
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+ assert_param(IS_ETH_TRANSMIT_STORE_FORWARD(ETH_InitStruct->ETH_TransmitStoreForward));
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+ assert_param(IS_ETH_TRANSMIT_THRESHOLD_CONTROL(ETH_InitStruct->ETH_TransmitThresholdControl));
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+ assert_param(IS_ETH_FORWARD_ERROR_FRAMES(ETH_InitStruct->ETH_ForwardErrorFrames));
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+ assert_param(IS_ETH_FORWARD_UNDERSIZED_GOOD_FRAMES(ETH_InitStruct->ETH_ForwardUndersizedGoodFrames));
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+ assert_param(IS_ETH_RECEIVE_THRESHOLD_CONTROL(ETH_InitStruct->ETH_ReceiveThresholdControl));
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+ assert_param(IS_ETH_SECOND_FRAME_OPERATE(ETH_InitStruct->ETH_SecondFrameOperate));
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+ assert_param(IS_ETH_ADDRESS_ALIGNED_BEATS(ETH_InitStruct->ETH_AddressAlignedBeats));
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+ assert_param(IS_ETH_FIXED_BURST(ETH_InitStruct->ETH_FixedBurst));
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+ assert_param(IS_ETH_RXDMA_BURST_LENGTH(ETH_InitStruct->ETH_RxDMABurstLength));
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+ assert_param(IS_ETH_TXDMA_BURST_LENGTH(ETH_InitStruct->ETH_TxDMABurstLength));
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+ assert_param(IS_ETH_DMA_DESC_SKIP_LENGTH(ETH_InitStruct->ETH_DescriptorSkipLength));
|
|
|
+ assert_param(IS_ETH_DMA_ARBITRATION_ROUNDROBIN_RXTX(ETH_InitStruct->ETH_DMAArbitration));
|
|
|
+ /*-------------------------------- MAC Config ------------------------------*/
|
|
|
+ /*---------------------- ETHERNET MACMIIAR Configuration -------------------*/
|
|
|
+ /* Get the ETHERNET MACMIIAR value */
|
|
|
+ tmpreg = ETH->MACMIIAR;
|
|
|
+ /* Clear CSR Clock Range CR[2:0] bits */
|
|
|
+ tmpreg &= MACMIIAR_CR_MASK;
|
|
|
+ /* Get hclk frequency value */
|
|
|
+ RCC_GetClocksFreq(&rcc_clocks);
|
|
|
+ hclk = rcc_clocks.HCLK_Frequency;
|
|
|
+ /* Set CR bits depending on hclk value */
|
|
|
+ if((hclk >= 20000000)&&(hclk < 35000000))
|
|
|
+ {
|
|
|
+ /* CSR Clock Range between 20-35 MHz */
|
|
|
+ tmpreg |= (uint32_t)ETH_MACMIIAR_CR_Div16;
|
|
|
+ }
|
|
|
+ else if((hclk >= 35000000)&&(hclk < 60000000))
|
|
|
+ {
|
|
|
+ /* CSR Clock Range between 35-60 MHz */
|
|
|
+ tmpreg |= (uint32_t)ETH_MACMIIAR_CR_Div26;
|
|
|
+ }
|
|
|
+ else if((hclk >= 60000000)&&(hclk < 100000000))
|
|
|
+ {
|
|
|
+ /* CSR Clock Range between 60-100 MHz */
|
|
|
+ tmpreg |= (uint32_t)ETH_MACMIIAR_CR_Div42;
|
|
|
+ }
|
|
|
+ else /* ((hclk >= 100000000)&&(hclk <= 120000000)) */
|
|
|
+ {
|
|
|
+ /* CSR Clock Range between 100-120 MHz */
|
|
|
+ tmpreg |= (uint32_t)ETH_MACMIIAR_CR_Div62;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Write to ETHERNET MAC MIIAR: Configure the ETHERNET CSR Clock Range */
|
|
|
+ ETH->MACMIIAR = (uint32_t)tmpreg;
|
|
|
+ /*-------------------- PHY initialization and configuration ----------------*/
|
|
|
+ /* Put the PHY in reset mode */
|
|
|
+ if(!(ETH_WritePHYRegister(PHYAddress, PHY_BCR, PHY_Reset)))
|
|
|
+ {
|
|
|
+ /* Return ERROR in case of write timeout */
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Delay to assure PHY reset */
|
|
|
+ _eth_delay_(PHY_RESET_DELAY);
|
|
|
+
|
|
|
+ if(ETH_InitStruct->ETH_AutoNegotiation != ETH_AutoNegotiation_Disable)
|
|
|
+ {
|
|
|
+ /* We wait for linked status... */
|
|
|
+ do
|
|
|
+ {
|
|
|
+ timeout++;
|
|
|
+ } while (!(ETH_ReadPHYRegister(PHYAddress, PHY_BSR) & PHY_Linked_Status) && (timeout < PHY_READ_TO));
|
|
|
+
|
|
|
+ /* Return ERROR in case of timeout */
|
|
|
+ if(timeout == PHY_READ_TO)
|
|
|
+ {
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Reset Timeout counter */
|
|
|
+ timeout = 0;
|
|
|
+ /* Enable Auto-Negotiation */
|
|
|
+ if(!(ETH_WritePHYRegister(PHYAddress, PHY_BCR, PHY_AutoNegotiation)))
|
|
|
+ {
|
|
|
+ /* Return ERROR in case of write timeout */
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Wait until the auto-negotiation will be completed */
|
|
|
+ do
|
|
|
+ {
|
|
|
+ timeout++;
|
|
|
+ } while (!(ETH_ReadPHYRegister(PHYAddress, PHY_BSR) & PHY_AutoNego_Complete) && (timeout < (uint32_t)PHY_READ_TO));
|
|
|
+
|
|
|
+ /* Return ERROR in case of timeout */
|
|
|
+ if(timeout == PHY_READ_TO)
|
|
|
+ {
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Reset Timeout counter */
|
|
|
+ timeout = 0;
|
|
|
+
|
|
|
+ /* Read the result of the auto-negotiation */
|
|
|
+ RegValue = ETH_ReadPHYRegister(PHYAddress, PHY_SR);
|
|
|
+
|
|
|
+ /* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */
|
|
|
+ if((RegValue & PHY_DUPLEX_STATUS) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ /* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
|
|
|
+ ETH_InitStruct->ETH_Mode = ETH_Mode_FullDuplex;
|
|
|
+ rt_kprintf("ETH FullDuplex\n");
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
|
|
|
+ ETH_InitStruct->ETH_Mode = ETH_Mode_HalfDuplex;
|
|
|
+ rt_kprintf("ETH HalfDuplex\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Configure the MAC with the speed fixed by the auto-negotiation process */
|
|
|
+ if(RegValue & PHY_SPEED_STATUS)
|
|
|
+ {
|
|
|
+ /* Set Ethernet speed to 10M following the auto-negotiation */
|
|
|
+ ETH_InitStruct->ETH_Speed = ETH_Speed_10M;
|
|
|
+ rt_kprintf("ETH speed 10M\n");
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Set Ethernet speed to 100M following the auto-negotiation */
|
|
|
+ ETH_InitStruct->ETH_Speed = ETH_Speed_100M;
|
|
|
+ rt_kprintf("ETH speed 100M\n");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ if(!ETH_WritePHYRegister(PHYAddress, PHY_BCR, ((uint16_t)(ETH_InitStruct->ETH_Mode >> 3) |
|
|
|
+ (uint16_t)(ETH_InitStruct->ETH_Speed >> 1))))
|
|
|
+ {
|
|
|
+ /* Return ERROR in case of write timeout */
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+ /* Delay to assure PHY configuration */
|
|
|
+ _eth_delay_(PHY_CONFIG_DELAY);
|
|
|
+
|
|
|
+ }
|
|
|
+ /*------------------------ ETHERNET MACCR Configuration --------------------*/
|
|
|
+ /* Get the ETHERNET MACCR value */
|
|
|
+ tmpreg = ETH->MACCR;
|
|
|
+ /* Clear WD, PCE, PS, TE and RE bits */
|
|
|
+ tmpreg &= 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 */
|
|
|
+ tmpreg |= (uint32_t)(ETH_InitStruct->ETH_Watchdog |
|
|
|
+ ETH_InitStruct->ETH_Jabber |
|
|
|
+ ETH_InitStruct->ETH_InterFrameGap |
|
|
|
+ ETH_InitStruct->ETH_CarrierSense |
|
|
|
+ ETH_InitStruct->ETH_Speed |
|
|
|
+ ETH_InitStruct->ETH_ReceiveOwn |
|
|
|
+ ETH_InitStruct->ETH_LoopbackMode |
|
|
|
+ ETH_InitStruct->ETH_Mode |
|
|
|
+ ETH_InitStruct->ETH_ChecksumOffload |
|
|
|
+ ETH_InitStruct->ETH_RetryTransmission |
|
|
|
+ ETH_InitStruct->ETH_AutomaticPadCRCStrip |
|
|
|
+ ETH_InitStruct->ETH_BackOffLimit |
|
|
|
+ ETH_InitStruct->ETH_DeferralCheck);
|
|
|
+ /* Write to ETHERNET MACCR */
|
|
|
+ ETH->MACCR = (uint32_t)tmpreg;
|
|
|
+
|
|
|
+ /*----------------------- 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 */
|
|
|
+ ETH->MACFFR = (uint32_t)(ETH_InitStruct->ETH_ReceiveAll |
|
|
|
+ ETH_InitStruct->ETH_SourceAddrFilter |
|
|
|
+ ETH_InitStruct->ETH_PassControlFrames |
|
|
|
+ ETH_InitStruct->ETH_BroadcastFramesReception |
|
|
|
+ ETH_InitStruct->ETH_DestinationAddrFilter |
|
|
|
+ ETH_InitStruct->ETH_PromiscuousMode |
|
|
|
+ ETH_InitStruct->ETH_MulticastFramesFilter |
|
|
|
+ ETH_InitStruct->ETH_UnicastFramesFilter);
|
|
|
+ /*--------------- ETHERNET MACHTHR and MACHTLR Configuration ---------------*/
|
|
|
+ /* Write to ETHERNET MACHTHR */
|
|
|
+ ETH->MACHTHR = (uint32_t)ETH_InitStruct->ETH_HashTableHigh;
|
|
|
+ /* Write to ETHERNET MACHTLR */
|
|
|
+ ETH->MACHTLR = (uint32_t)ETH_InitStruct->ETH_HashTableLow;
|
|
|
+ /*----------------------- ETHERNET MACFCR Configuration --------------------*/
|
|
|
+ /* Get the ETHERNET MACFCR value */
|
|
|
+ tmpreg = ETH->MACFCR;
|
|
|
+ /* Clear xx bits */
|
|
|
+ tmpreg &= 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 */
|
|
|
+ tmpreg |= (uint32_t)((ETH_InitStruct->ETH_PauseTime << 16) |
|
|
|
+ ETH_InitStruct->ETH_ZeroQuantaPause |
|
|
|
+ ETH_InitStruct->ETH_PauseLowThreshold |
|
|
|
+ ETH_InitStruct->ETH_UnicastPauseFrameDetect |
|
|
|
+ ETH_InitStruct->ETH_ReceiveFlowControl |
|
|
|
+ ETH_InitStruct->ETH_TransmitFlowControl);
|
|
|
+ /* Write to ETHERNET MACFCR */
|
|
|
+ ETH->MACFCR = (uint32_t)tmpreg;
|
|
|
+ /*----------------------- ETHERNET MACVLANTR Configuration -----------------*/
|
|
|
+ /* Set the ETV bit according to ETH_VLANTagComparison value */
|
|
|
+ /* Set the VL bit according to ETH_VLANTagIdentifier value */
|
|
|
+ ETH->MACVLANTR = (uint32_t)(ETH_InitStruct->ETH_VLANTagComparison |
|
|
|
+ ETH_InitStruct->ETH_VLANTagIdentifier);
|
|
|
+
|
|
|
+ /*-------------------------------- DMA Config ------------------------------*/
|
|
|
+ /*----------------------- ETHERNET DMAOMR Configuration --------------------*/
|
|
|
+ /* Get the ETHERNET DMAOMR value */
|
|
|
+ tmpreg = ETH->DMAOMR;
|
|
|
+ /* Clear xx bits */
|
|
|
+ tmpreg &= 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 */
|
|
|
+ tmpreg |= (uint32_t)(ETH_InitStruct->ETH_DropTCPIPChecksumErrorFrame |
|
|
|
+ ETH_InitStruct->ETH_ReceiveStoreForward |
|
|
|
+ ETH_InitStruct->ETH_FlushReceivedFrame |
|
|
|
+ ETH_InitStruct->ETH_TransmitStoreForward |
|
|
|
+ ETH_InitStruct->ETH_TransmitThresholdControl |
|
|
|
+ ETH_InitStruct->ETH_ForwardErrorFrames |
|
|
|
+ ETH_InitStruct->ETH_ForwardUndersizedGoodFrames |
|
|
|
+ ETH_InitStruct->ETH_ReceiveThresholdControl |
|
|
|
+ ETH_InitStruct->ETH_SecondFrameOperate);
|
|
|
+ /* Write to ETHERNET DMAOMR */
|
|
|
+ ETH->DMAOMR = (uint32_t)tmpreg;
|
|
|
+
|
|
|
+ /*----------------------- 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 DSL bit according to ETH_DesciptorSkipLength value */
|
|
|
+ /* Set the PR and DA bits according to ETH_DMAArbitration value */
|
|
|
+ ETH->DMABMR = (uint32_t)(ETH_InitStruct->ETH_AddressAlignedBeats |
|
|
|
+ ETH_InitStruct->ETH_FixedBurst |
|
|
|
+ ETH_InitStruct->ETH_RxDMABurstLength | /* !! if 4xPBL is selected for Tx or Rx it is applied for the other */
|
|
|
+ ETH_InitStruct->ETH_TxDMABurstLength |
|
|
|
+ (ETH_InitStruct->ETH_DescriptorSkipLength << 2) |
|
|
|
+ ETH_InitStruct->ETH_DMAArbitration |
|
|
|
+ ETH_DMABMR_USP); /* Enable use of separate PBL for Rx and Tx */
|
|
|
+
|
|
|
+ #ifdef USE_ENHANCED_DMA_DESCRIPTORS
|
|
|
+ /* Enable the Enhanced DMA descriptors */
|
|
|
+ ETH->DMABMR |= ETH_DMABMR_EDE;
|
|
|
+ #endif /* USE_ENHANCED_DMA_DESCRIPTORS */
|
|
|
+
|
|
|
+ /* Return Ethernet configuration success */
|
|
|
+ return ETH_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables ENET MAC and DMA reception/transmission
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_Start(void)
|
|
|
+{
|
|
|
+ /* Enable transmit state machine of the MAC for transmission on the MII */
|
|
|
+ ETH_MACTransmissionCmd(ENABLE);
|
|
|
+ /* Flush Transmit FIFO */
|
|
|
+ ETH_FlushTransmitFIFO();
|
|
|
+ /* Enable receive state machine of the MAC for reception from the MII */
|
|
|
+ ETH_MACReceptionCmd(ENABLE);
|
|
|
+
|
|
|
+ /* Start DMA transmission */
|
|
|
+ ETH_DMATransmissionCmd(ENABLE);
|
|
|
+ /* Start DMA reception */
|
|
|
+ ETH_DMAReceptionCmd(ENABLE);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC transmission.
|
|
|
+ * @param NewState: new state of the MAC transmission.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACTransmissionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC transmission */
|
|
|
+ ETH->MACCR |= ETH_MACCR_TE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC transmission */
|
|
|
+ ETH->MACCR &= ~ETH_MACCR_TE;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC reception.
|
|
|
+ * @param NewState: new state of the MAC reception.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACReceptionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC reception */
|
|
|
+ ETH->MACCR |= ETH_MACCR_RE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC reception */
|
|
|
+ ETH->MACCR &= ~ETH_MACCR_RE;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the ETHERNET flow control busy bit is set or not.
|
|
|
+ * @param None
|
|
|
+ * @retval The new state of flow control busy status bit (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetFlowControlBusyStatus(void)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* The Flow Control register should not be written to until this bit is cleared */
|
|
|
+ if ((ETH->MACFCR & ETH_MACFCR_FCBBPA) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Initiate a Pause Control Frame (Full-duplex only).
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_InitiatePauseControlFrame(void)
|
|
|
+{
|
|
|
+ /* When Set In full duplex MAC initiates pause control frame */
|
|
|
+ ETH->MACFCR |= ETH_MACFCR_FCBBPA;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC BackPressure operation activation (Half-duplex only).
|
|
|
+ * @param NewState: new state of the MAC BackPressure operation activation.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_BackPressureActivationCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Activate the MAC BackPressure operation */
|
|
|
+ /* In Half duplex: during backpressure, when the MAC receives a new frame,
|
|
|
+ the transmitter starts sending a JAM pattern resulting in a collision */
|
|
|
+ ETH->MACFCR |= ETH_MACFCR_FCBBPA;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Desactivate the MAC BackPressure operation */
|
|
|
+ ETH->MACFCR &= ~ETH_MACFCR_FCBBPA;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET MAC flag is set or not.
|
|
|
+ * @param ETH_MAC_FLAG: specifies the flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_FLAG_TST : Time stamp trigger flag
|
|
|
+ * @arg ETH_MAC_FLAG_MMCT : MMC transmit flag
|
|
|
+ * @arg ETH_MAC_FLAG_MMCR : MMC receive flag
|
|
|
+ * @arg ETH_MAC_FLAG_MMC : MMC flag
|
|
|
+ * @arg ETH_MAC_FLAG_PMT : PMT flag
|
|
|
+ * @retval The new state of ETHERNET MAC flag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetMACFlagStatus(uint32_t ETH_MAC_FLAG)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_GET_FLAG(ETH_MAC_FLAG));
|
|
|
+ if ((ETH->MACSR & ETH_MAC_FLAG) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET MAC interrupt has occurred or not.
|
|
|
+ * @param ETH_MAC_IT: specifies the interrupt source to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_IT_TST : Time stamp trigger interrupt
|
|
|
+ * @arg ETH_MAC_IT_MMCT : MMC transmit interrupt
|
|
|
+ * @arg ETH_MAC_IT_MMCR : MMC receive interrupt
|
|
|
+ * @arg ETH_MAC_IT_MMC : MMC interrupt
|
|
|
+ * @arg ETH_MAC_IT_PMT : PMT interrupt
|
|
|
+ * @retval The new state of ETHERNET MAC interrupt (SET or RESET).
|
|
|
+ */
|
|
|
+ITStatus ETH_GetMACITStatus(uint32_t ETH_MAC_IT)
|
|
|
+{
|
|
|
+ ITStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_GET_IT(ETH_MAC_IT));
|
|
|
+ if ((ETH->MACSR & ETH_MAC_IT) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the specified ETHERNET MAC interrupts.
|
|
|
+ * @param ETH_MAC_IT: specifies the ETHERNET MAC interrupt sources to be
|
|
|
+ * enabled or disabled.
|
|
|
+ * This parameter can be any combination of the following values:
|
|
|
+ * @arg ETH_MAC_IT_TST : Time stamp trigger interrupt
|
|
|
+ * @arg ETH_MAC_IT_PMT : PMT interrupt
|
|
|
+ * @param NewState: new state of the specified ETHERNET MAC interrupts.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACITConfig(uint32_t ETH_MAC_IT, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_IT(ETH_MAC_IT));
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected ETHERNET MAC interrupts */
|
|
|
+ ETH->MACIMR &= (~(uint32_t)ETH_MAC_IT);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected ETHERNET MAC interrupts */
|
|
|
+ ETH->MACIMR |= ETH_MAC_IT;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Configures the selected MAC address.
|
|
|
+ * @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 on MAC address buffer data (6 bytes).
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACAddressConfig(uint32_t MacAddr, uint8_t *Addr)
|
|
|
+{
|
|
|
+ uint32_t tmpreg;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS0123(MacAddr));
|
|
|
+
|
|
|
+ /* Calculate the selected MAC address high register */
|
|
|
+ tmpreg = ((uint32_t)Addr[5] << 8) | (uint32_t)Addr[4];
|
|
|
+ /* Load the selected MAC address high register */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) = tmpreg;
|
|
|
+ /* Calculate the selected MAC address low register */
|
|
|
+ tmpreg = ((uint32_t)Addr[3] << 24) | ((uint32_t)Addr[2] << 16) | ((uint32_t)Addr[1] << 8) | Addr[0];
|
|
|
+
|
|
|
+ /* Load the selected MAC address low register */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_LBASE + MacAddr)) = tmpreg;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the selected MAC address.
|
|
|
+ * @param MacAddr: The MAC address to return.
|
|
|
+ * 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 on MAC address buffer data (6 bytes).
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_GetMACAddress(uint32_t MacAddr, uint8_t *Addr)
|
|
|
+{
|
|
|
+ uint32_t tmpreg;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS0123(MacAddr));
|
|
|
+
|
|
|
+ /* Get the selected MAC address high register */
|
|
|
+ tmpreg =(*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr));
|
|
|
+
|
|
|
+ /* Calculate the selected MAC address buffer */
|
|
|
+ Addr[5] = ((tmpreg >> 8) & (uint8_t)0xFF);
|
|
|
+ Addr[4] = (tmpreg & (uint8_t)0xFF);
|
|
|
+ /* Load the selected MAC address low register */
|
|
|
+ tmpreg =(*(__IO uint32_t *) (ETH_MAC_ADDR_LBASE + MacAddr));
|
|
|
+ /* Calculate the selected MAC address buffer */
|
|
|
+ Addr[3] = ((tmpreg >> 24) & (uint8_t)0xFF);
|
|
|
+ Addr[2] = ((tmpreg >> 16) & (uint8_t)0xFF);
|
|
|
+ Addr[1] = ((tmpreg >> 8 ) & (uint8_t)0xFF);
|
|
|
+ Addr[0] = (tmpreg & (uint8_t)0xFF);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the Address filter module uses the specified
|
|
|
+ * ETHERNET MAC address for perfect filtering
|
|
|
+ * @param MacAddr: specifies the ETHERNET MAC address to be used for perfect filtering.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_Address1 : MAC Address1
|
|
|
+ * @arg ETH_MAC_Address2 : MAC Address2
|
|
|
+ * @arg ETH_MAC_Address3 : MAC Address3
|
|
|
+ * @param NewState: new state of the specified ETHERNET MAC address use.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACAddressPerfectFilterCmd(uint32_t MacAddr, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS123(MacAddr));
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected ETHERNET MAC address for perfect filtering */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) |= ETH_MACA1HR_AE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected ETHERNET MAC address for perfect filtering */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) &=(~(uint32_t)ETH_MACA1HR_AE);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Set the filter type for the specified ETHERNET MAC address
|
|
|
+ * @param MacAddr: specifies the ETHERNET MAC address
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_Address1 : MAC Address1
|
|
|
+ * @arg ETH_MAC_Address2 : MAC Address2
|
|
|
+ * @arg ETH_MAC_Address3 : MAC Address3
|
|
|
+ * @param Filter: specifies the used frame received field for comparison
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_AddressFilter_SA : MAC Address is used to compare with the
|
|
|
+ * SA fields of the received frame.
|
|
|
+ * @arg ETH_MAC_AddressFilter_DA : MAC Address is used to compare with the
|
|
|
+ * DA fields of the received frame.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACAddressFilterConfig(uint32_t MacAddr, uint32_t Filter)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS123(MacAddr));
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS_FILTER(Filter));
|
|
|
+
|
|
|
+ if (Filter != ETH_MAC_AddressFilter_DA)
|
|
|
+ {
|
|
|
+ /* The selected ETHERNET MAC address is used to compare with the SA fields of the
|
|
|
+ received frame. */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) |= ETH_MACA1HR_SA;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* The selected ETHERNET MAC address is used to compare with the DA fields of the
|
|
|
+ received frame. */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) &=(~(uint32_t)ETH_MACA1HR_SA);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Set the filter type for the specified ETHERNET MAC address
|
|
|
+ * @param MacAddr: specifies the ETHERNET MAC address
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MAC_Address1 : MAC Address1
|
|
|
+ * @arg ETH_MAC_Address2 : MAC Address2
|
|
|
+ * @arg ETH_MAC_Address3 : MAC Address3
|
|
|
+ * @param MaskByte: specifies the used address bytes for comparison
|
|
|
+ * This parameter can be any combination of the following values:
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte6 : Mask MAC Address high reg bits [15:8].
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte5 : Mask MAC Address high reg bits [7:0].
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte4 : Mask MAC Address low reg bits [31:24].
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte3 : Mask MAC Address low reg bits [23:16].
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte2 : Mask MAC Address low reg bits [15:8].
|
|
|
+ * @arg ETH_MAC_AddressMask_Byte1 : Mask MAC Address low reg bits [7:0].
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MACAddressMaskBytesFilterConfig(uint32_t MacAddr, uint32_t MaskByte)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS123(MacAddr));
|
|
|
+ assert_param(IS_ETH_MAC_ADDRESS_MASK(MaskByte));
|
|
|
+
|
|
|
+ /* Clear MBC bits in the selected MAC address high register */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) &=(~(uint32_t)ETH_MACA1HR_MBC);
|
|
|
+ /* Set the selected Filter mask bytes */
|
|
|
+ (*(__IO uint32_t *) (ETH_MAC_ADDR_HBASE + MacAddr)) |= MaskByte;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/******************************************************************************/
|
|
|
+/* DMA Descriptors functions */
|
|
|
+/******************************************************************************/
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief This function should be called to get the received frame (to be used
|
|
|
+ * with polling method only).
|
|
|
+ * @param none
|
|
|
+ * @retval Structure of type FrameTypeDef
|
|
|
+ */
|
|
|
+FrameTypeDef ETH_Get_Received_Frame(void)
|
|
|
+{
|
|
|
+ uint32_t framelength = 0;
|
|
|
+ FrameTypeDef frame = {0,0,0};
|
|
|
+
|
|
|
+ /* Get the Frame Length of the received packet: substruct 4 bytes of the CRC */
|
|
|
+ framelength = ((DMARxDescToGet->Status & ETH_DMARxDesc_FL) >> ETH_DMARxDesc_FrameLengthShift) - 4;
|
|
|
+ frame.length = framelength;
|
|
|
+
|
|
|
+ /* Get the address of the buffer start address */
|
|
|
+ /* Check if more than one segment in the frame */
|
|
|
+ if (DMA_RX_FRAME_infos->Seg_Count >1)
|
|
|
+ {
|
|
|
+ frame.buffer =(DMA_RX_FRAME_infos->FS_Rx_Desc)->Buffer1Addr;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ frame.buffer = DMARxDescToGet->Buffer1Addr;
|
|
|
+ }
|
|
|
+
|
|
|
+ frame.descriptor = DMARxDescToGet;
|
|
|
+
|
|
|
+ /* Update the ETHERNET DMA global Rx descriptor with next Rx descriptor */
|
|
|
+ /* Chained Mode */
|
|
|
+ /* Selects the next DMA Rx descriptor list for next buffer to read */
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+
|
|
|
+ /* Return Frame */
|
|
|
+ return (frame);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief This function should be called when a frame is received using DMA
|
|
|
+ * Receive interrupt, it allows scanning of Rx descriptors to get the
|
|
|
+ * the receive frame (should be used with interrupt mode only)
|
|
|
+ * @param None
|
|
|
+ * @retval Structure of type FrameTypeDef
|
|
|
+ */
|
|
|
+FrameTypeDef ETH_Get_Received_Frame_interrupt(void)
|
|
|
+{
|
|
|
+ FrameTypeDef frame={0,0,0};
|
|
|
+ __IO uint32_t descriptor_scan_counter = 0;
|
|
|
+
|
|
|
+ /* scan descriptors owned by CPU */
|
|
|
+ while (((DMARxDescToGet->Status & ETH_DMARxDesc_OWN) == (uint32_t)RESET)&&
|
|
|
+ (descriptor_scan_counter<ETH_RXBUFNB))
|
|
|
+ {
|
|
|
+
|
|
|
+ /* Just by security */
|
|
|
+ descriptor_scan_counter++;
|
|
|
+
|
|
|
+ /* check if first segment in frame */
|
|
|
+ if(((DMARxDescToGet->Status & ETH_DMARxDesc_FS) != (uint32_t)RESET)&&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_LS) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ DMA_RX_FRAME_infos->FS_Rx_Desc = DMARxDescToGet;
|
|
|
+ DMA_RX_FRAME_infos->Seg_Count = 1;
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check if intermediate segment */
|
|
|
+ else if (((DMARxDescToGet->Status & ETH_DMARxDesc_LS) == (uint32_t)RESET)&&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_FS) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ (DMA_RX_FRAME_infos->Seg_Count) ++;
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* should be last segment */
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* last segment */
|
|
|
+ DMA_RX_FRAME_infos->LS_Rx_Desc = DMARxDescToGet;
|
|
|
+
|
|
|
+ (DMA_RX_FRAME_infos->Seg_Count)++;
|
|
|
+
|
|
|
+ /* first segment is last segment */
|
|
|
+ if ((DMA_RX_FRAME_infos->Seg_Count)==1)
|
|
|
+ DMA_RX_FRAME_infos->FS_Rx_Desc = DMARxDescToGet;
|
|
|
+
|
|
|
+ /* Get the Frame Length of the received packet: substruct 4 bytes of the CRC */
|
|
|
+ frame.length = ((DMARxDescToGet->Status & ETH_DMARxDesc_FL) >> ETH_DMARxDesc_FrameLengthShift) - 4;
|
|
|
+
|
|
|
+
|
|
|
+ /* Get the address of the buffer start address */
|
|
|
+ /* Check if more than one segment in the frame */
|
|
|
+ if (DMA_RX_FRAME_infos->Seg_Count >1)
|
|
|
+ {
|
|
|
+ frame.buffer =(DMA_RX_FRAME_infos->FS_Rx_Desc)->Buffer1Addr;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ frame.buffer = DMARxDescToGet->Buffer1Addr;
|
|
|
+ }
|
|
|
+
|
|
|
+ frame.descriptor = DMARxDescToGet;
|
|
|
+
|
|
|
+ /* Update the ETHERNET DMA global Rx descriptor with next Rx descriptor */
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+
|
|
|
+ /* Return Frame */
|
|
|
+ return (frame);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return (frame);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Prepares DMA Tx descriptors to transmit an ethernet frame
|
|
|
+ * @param FrameLength : length of the frame to send
|
|
|
+ * @retval error status
|
|
|
+ */
|
|
|
+uint32_t ETH_Prepare_Transmit_Descriptors(u16 FrameLength)
|
|
|
+{
|
|
|
+ uint32_t buf_count =0, size=0,i=0;
|
|
|
+ __IO ETH_DMADESCTypeDef *DMATxNextDesc;
|
|
|
+
|
|
|
+ /* Check if the descriptor is owned by the ETHERNET DMA (when set) or CPU (when reset) */
|
|
|
+ if((DMATxDescToSet->Status & ETH_DMATxDesc_OWN) != (u32)RESET)
|
|
|
+ {
|
|
|
+ /* Return ERROR: OWN bit set */
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ DMATxNextDesc = DMATxDescToSet;
|
|
|
+
|
|
|
+ if (FrameLength > ETH_TX_BUF_SIZE)
|
|
|
+ {
|
|
|
+ buf_count = FrameLength/ETH_TX_BUF_SIZE;
|
|
|
+ if (FrameLength%ETH_TX_BUF_SIZE) buf_count++;
|
|
|
+ }
|
|
|
+ else buf_count =1;
|
|
|
+
|
|
|
+ if (buf_count ==1)
|
|
|
+ {
|
|
|
+ /*set LAST and FIRST segment */
|
|
|
+ DMATxDescToSet->Status |=ETH_DMATxDesc_FS|ETH_DMATxDesc_LS;
|
|
|
+ /* Set frame size */
|
|
|
+ DMATxDescToSet->ControlBufferSize = (FrameLength& ETH_DMATxDesc_TBS1);
|
|
|
+ /* Set Own bit of the Tx descriptor Status: gives the buffer back to ETHERNET DMA */
|
|
|
+ DMATxDescToSet->Status |= ETH_DMATxDesc_OWN;
|
|
|
+ DMATxDescToSet= (ETH_DMADESCTypeDef *)(DMATxDescToSet->Buffer2NextDescAddr);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ for (i=0; i< buf_count; i++)
|
|
|
+ {
|
|
|
+ if (i==0)
|
|
|
+ {
|
|
|
+ /* Setting the first segment bit */
|
|
|
+ DMATxDescToSet->Status |= ETH_DMATxDesc_FS;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Program size */
|
|
|
+ DMATxNextDesc->ControlBufferSize = (ETH_TX_BUF_SIZE & ETH_DMATxDesc_TBS1);
|
|
|
+
|
|
|
+ if (i== (buf_count-1))
|
|
|
+ {
|
|
|
+ /* Setting the last segment bit */
|
|
|
+ DMATxNextDesc->Status |= ETH_DMATxDesc_LS;
|
|
|
+ size = FrameLength - (buf_count-1)*ETH_TX_BUF_SIZE;
|
|
|
+ DMATxNextDesc->ControlBufferSize = (size & ETH_DMATxDesc_TBS1);
|
|
|
+ }
|
|
|
+
|
|
|
+ /*give back descriptor to DMA */
|
|
|
+ DMATxNextDesc->Status |= ETH_DMATxDesc_OWN;
|
|
|
+
|
|
|
+ DMATxNextDesc = (ETH_DMADESCTypeDef *)(DMATxNextDesc->Buffer2NextDescAddr);
|
|
|
+ /* Set Own bit of the Tx descriptor Status: gives the buffer back to ETHERNET DMA */
|
|
|
+ }
|
|
|
+ DMATxDescToSet = DMATxNextDesc ;
|
|
|
+ }
|
|
|
+
|
|
|
+ if( (ETH->DMASR Ð_DMASR_FBES) != (u32)RESET )
|
|
|
+ rt_kprintf("Bus Error\n");
|
|
|
+
|
|
|
+ /* When Tx Buffer unavailable flag is set: clear it and resume transmission */
|
|
|
+ if ((ETH->DMASR & ETH_DMASR_TBUS) != (u32)RESET)
|
|
|
+ {
|
|
|
+ /* Clear TBUS ETHERNET DMA flag */
|
|
|
+ ETH->DMASR = ETH_DMASR_TBUS;
|
|
|
+ /* Resume DMA transmission*/
|
|
|
+ ETH->DMATPDR = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Return SUCCESS */
|
|
|
+ return ETH_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Initializes the DMA Rx descriptors in chain mode.
|
|
|
+ * @param DMARxDescTab: Pointer on the first Rx desc list
|
|
|
+ * @param RxBuff: Pointer on the first RxBuffer list
|
|
|
+ * @param RxBuffCount: Number of the used Rx desc in the list
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMARxDescChainInit(ETH_DMADESCTypeDef *DMARxDescTab, uint8_t *RxBuff, uint32_t RxBuffCount)
|
|
|
+{
|
|
|
+ uint32_t i = 0;
|
|
|
+ ETH_DMADESCTypeDef *DMARxDesc;
|
|
|
+
|
|
|
+ /* Set the DMARxDescToGet pointer with the first one of the DMARxDescTab list */
|
|
|
+ DMARxDescToGet = DMARxDescTab;
|
|
|
+ /* Fill each DMARxDesc descriptor with the right values */
|
|
|
+ for(i=0; 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 | (uint32_t)ETH_RX_BUF_SIZE;
|
|
|
+ /* Set Buffer1 address pointer */
|
|
|
+ DMARxDesc->Buffer1Addr = (uint32_t)(&RxBuff[i*ETH_RX_BUF_SIZE]);
|
|
|
+
|
|
|
+ /* Initialize the next descriptor with the Next Descriptor Polling Enable */
|
|
|
+ if(i < (RxBuffCount-1))
|
|
|
+ {
|
|
|
+ /* 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 */
|
|
|
+ ETH->DMARDLAR = (uint32_t) DMARxDescTab;
|
|
|
+
|
|
|
+
|
|
|
+ DMA_RX_FRAME_infos = &RX_Frame_Descriptor;
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief This function polls for a frame reception
|
|
|
+ * @param None
|
|
|
+ * @retval Returns 1 when a frame is received, 0 if none.
|
|
|
+ */
|
|
|
+uint32_t ETH_CheckFrameReceived(void)
|
|
|
+{
|
|
|
+ /* check if last segment */
|
|
|
+ if(((DMARxDescToGet->Status & ETH_DMARxDesc_OWN) == (uint32_t)RESET) &&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_LS) != (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ DMA_RX_FRAME_infos->LS_Rx_Desc = DMARxDescToGet;
|
|
|
+ DMA_RX_FRAME_infos->Seg_Count++;
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check if first segment */
|
|
|
+ else if(((DMARxDescToGet->Status & ETH_DMARxDesc_OWN) == (uint32_t)RESET) &&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_FS) != (uint32_t)RESET)&&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_LS) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ DMA_RX_FRAME_infos->FS_Rx_Desc = DMARxDescToGet;
|
|
|
+ DMA_RX_FRAME_infos->LS_Rx_Desc = NULL;
|
|
|
+ DMA_RX_FRAME_infos->Seg_Count = 1;
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check if intermediate segment */
|
|
|
+ else if(((DMARxDescToGet->Status & ETH_DMARxDesc_OWN) == (uint32_t)RESET) &&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_FS) == (uint32_t)RESET)&&
|
|
|
+ ((DMARxDescToGet->Status & ETH_DMARxDesc_LS) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ (DMA_RX_FRAME_infos->Seg_Count) ++;
|
|
|
+ DMARxDescToGet = (ETH_DMADESCTypeDef*) (DMARxDescToGet->Buffer2NextDescAddr);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Initializes the DMA Tx descriptors in chain mode.
|
|
|
+ * @param DMATxDescTab: Pointer on the first Tx desc list
|
|
|
+ * @param TxBuff: Pointer on the first TxBuffer list
|
|
|
+ * @param TxBuffCount: Number of the used Tx desc in the list
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescChainInit(ETH_DMADESCTypeDef *DMATxDescTab, uint8_t* TxBuff, uint32_t TxBuffCount)
|
|
|
+{
|
|
|
+ uint32_t i = 0;
|
|
|
+ ETH_DMADESCTypeDef *DMATxDesc;
|
|
|
+
|
|
|
+ /* Set the DMATxDescToSet pointer with the first one of the DMATxDescTab list */
|
|
|
+ DMATxDescToSet = DMATxDescTab;
|
|
|
+ /* Fill each DMATxDesc descriptor with the right values */
|
|
|
+ for(i=0; 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]);
|
|
|
+
|
|
|
+ /* 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 Desciptor List Address Register */
|
|
|
+ ETH->DMATDLAR = (uint32_t) DMATxDescTab;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET DMA Tx Desc flag is set or not.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @param ETH_DMATxDescFlag: specifies the flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMATxDesc_OWN : OWN bit: descriptor is owned by DMA engine
|
|
|
+ * @arg ETH_DMATxDesc_IC : Interrupt on completion
|
|
|
+ * @arg ETH_DMATxDesc_LS : Last Segment
|
|
|
+ * @arg ETH_DMATxDesc_FS : First Segment
|
|
|
+ * @arg ETH_DMATxDesc_DC : Disable CRC
|
|
|
+ * @arg ETH_DMATxDesc_DP : Disable Pad
|
|
|
+ * @arg ETH_DMATxDesc_TTSE: Transmit Time Stamp Enable
|
|
|
+ * @arg ETH_DMATxDesc_CIC : Checksum insertion control
|
|
|
+ * @arg ETH_DMATxDesc_TER : Transmit End of Ring
|
|
|
+ * @arg ETH_DMATxDesc_TCH : Second Address Chained
|
|
|
+ * @arg ETH_DMATxDesc_TTSS: Tx Time Stamp Status
|
|
|
+ * @arg ETH_DMATxDesc_IHE : IP Header Error
|
|
|
+ * @arg ETH_DMATxDesc_ES : Error summary
|
|
|
+ * @arg ETH_DMATxDesc_JT : Jabber Timeout
|
|
|
+ * @arg ETH_DMATxDesc_FF : Frame Flushed: DMA/MTL flushed the frame due to SW flush
|
|
|
+ * @arg ETH_DMATxDesc_PCE : Payload Checksum Error
|
|
|
+ * @arg ETH_DMATxDesc_LCA : Loss of Carrier: carrier lost during transmission
|
|
|
+ * @arg ETH_DMATxDesc_NC : No Carrier: no carrier signal from the transceiver
|
|
|
+ * @arg ETH_DMATxDesc_LCO : Late Collision: transmission aborted due to collision
|
|
|
+ * @arg ETH_DMATxDesc_EC : Excessive Collision: transmission aborted after 16 collisions
|
|
|
+ * @arg ETH_DMATxDesc_VF : VLAN Frame
|
|
|
+ * @arg ETH_DMATxDesc_CC : Collision Count
|
|
|
+ * @arg ETH_DMATxDesc_ED : Excessive Deferral
|
|
|
+ * @arg ETH_DMATxDesc_UF : Underflow Error: late data arrival from the memory
|
|
|
+ * @arg ETH_DMATxDesc_DB : Deferred Bit
|
|
|
+ * @retval The new state of ETH_DMATxDescFlag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetDMATxDescFlagStatus(ETH_DMADESCTypeDef *DMATxDesc, uint32_t ETH_DMATxDescFlag)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMATxDESC_GET_FLAG(ETH_DMATxDescFlag));
|
|
|
+
|
|
|
+ if ((DMATxDesc->Status & ETH_DMATxDescFlag) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Returns the specified ETHERNET DMA Tx Desc collision count.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @retval The Transmit descriptor collision counter value.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetDMATxDescCollisionCount(ETH_DMADESCTypeDef *DMATxDesc)
|
|
|
+{
|
|
|
+ /* Return the Receive descriptor frame length */
|
|
|
+ return ((DMATxDesc->Status & ETH_DMATxDesc_CC) >> ETH_DMATXDESC_COLLISION_COUNTSHIFT);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Set the specified DMA Tx Desc Own bit.
|
|
|
+ * @param DMATxDesc: Pointer on a Tx desc
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_SetDMATxDescOwnBit(ETH_DMADESCTypeDef *DMATxDesc)
|
|
|
+{
|
|
|
+ /* Set the DMA Tx Desc Own bit */
|
|
|
+ DMATxDesc->Status |= ETH_DMATxDesc_OWN;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the specified DMA Tx Desc Transmit interrupt.
|
|
|
+ * @param DMATxDesc: Pointer on a Tx desc
|
|
|
+ * @param NewState: new state of the DMA Tx Desc transmit interrupt.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescTransmitITConfig(ETH_DMADESCTypeDef *DMATxDesc, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the DMA Tx Desc Transmit interrupt */
|
|
|
+ DMATxDesc->Status |= ETH_DMATxDesc_IC;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the DMA Tx Desc Transmit interrupt */
|
|
|
+ DMATxDesc->Status &=(~(uint32_t)ETH_DMATxDesc_IC);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief configure Tx descriptor as last or first segment
|
|
|
+ * @param DMATxDesc: Pointer on a Tx desc
|
|
|
+ * @param DMATxDesc_FrameSegment: specifies is the actual Tx desc contain last or first segment.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMATxDesc_LastSegment : actual Tx desc contain last segment
|
|
|
+ * @arg ETH_DMATxDesc_FirstSegment : actual Tx desc contain first segment
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescFrameSegmentConfig(ETH_DMADESCTypeDef *DMATxDesc, uint32_t DMATxDesc_FrameSegment)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_TXDESC_SEGMENT(DMATxDesc_FrameSegment));
|
|
|
+
|
|
|
+ /* Selects the DMA Tx Desc Frame segment */
|
|
|
+ DMATxDesc->Status |= DMATxDesc_FrameSegment;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Selects the specified ETHERNET DMA Tx Desc Checksum Insertion.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @param DMATxDesc_Checksum: specifies is the DMA Tx desc checksum insertion.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMATxDesc_ChecksumByPass : Checksum bypass
|
|
|
+ * @arg ETH_DMATxDesc_ChecksumIPV4Header : IPv4 header checksum
|
|
|
+ * @arg ETH_DMATxDesc_ChecksumTCPUDPICMPSegment : TCP/UDP/ICMP checksum. Pseudo header checksum is assumed to be present
|
|
|
+ * @arg ETH_DMATxDesc_ChecksumTCPUDPICMPFull : TCP/UDP/ICMP checksum fully in hardware including pseudo header
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescChecksumInsertionConfig(ETH_DMADESCTypeDef *DMATxDesc, uint32_t DMATxDesc_Checksum)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_TXDESC_CHECKSUM(DMATxDesc_Checksum));
|
|
|
+
|
|
|
+ /* Set the selected DMA Tx desc checksum insertion control */
|
|
|
+ DMATxDesc->Status |= DMATxDesc_Checksum;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the DMA Tx Desc CRC.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @param NewState: new state of the specified DMA Tx Desc CRC.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescCRCCmd(ETH_DMADESCTypeDef *DMATxDesc, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected DMA Tx Desc CRC */
|
|
|
+ DMATxDesc->Status &= (~(uint32_t)ETH_DMATxDesc_DC);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected DMA Tx Desc CRC */
|
|
|
+ DMATxDesc->Status |= ETH_DMATxDesc_DC;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the DMA Tx Desc second address chained.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @param NewState: new state of the specified DMA Tx Desc second address chained.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescSecondAddressChainedCmd(ETH_DMADESCTypeDef *DMATxDesc, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected DMA Tx Desc second address chained */
|
|
|
+ DMATxDesc->Status |= ETH_DMATxDesc_TCH;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected DMA Tx Desc second address chained */
|
|
|
+ DMATxDesc->Status &=(~(uint32_t)ETH_DMATxDesc_TCH);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the DMA Tx Desc padding for frame shorter than 64 bytes.
|
|
|
+ * @param DMATxDesc: pointer on a DMA Tx descriptor
|
|
|
+ * @param NewState: new state of the specified DMA Tx Desc padding for frame shorter than 64 bytes.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescShortFramePaddingCmd(ETH_DMADESCTypeDef *DMATxDesc, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected DMA Tx Desc padding for frame shorter than 64 bytes */
|
|
|
+ DMATxDesc->Status &= (~(uint32_t)ETH_DMATxDesc_DP);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected DMA Tx Desc padding for frame shorter than 64 bytes*/
|
|
|
+ DMATxDesc->Status |= ETH_DMATxDesc_DP;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Configures the specified DMA Tx Desc buffer1 and buffer2 sizes.
|
|
|
+ * @param DMATxDesc: Pointer on a Tx desc
|
|
|
+ * @param BufferSize1: specifies the Tx desc buffer1 size.
|
|
|
+ * @param BufferSize2: specifies the Tx desc buffer2 size (put "0" if not used).
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATxDescBufferSizeConfig(ETH_DMADESCTypeDef *DMATxDesc, uint32_t BufferSize1, uint32_t BufferSize2)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMATxDESC_BUFFER_SIZE(BufferSize1));
|
|
|
+ assert_param(IS_ETH_DMATxDESC_BUFFER_SIZE(BufferSize2));
|
|
|
+
|
|
|
+ /* Set the DMA Tx Desc buffer1 and buffer2 sizes values */
|
|
|
+ DMATxDesc->ControlBufferSize |= (BufferSize1 | (BufferSize2 << ETH_DMATXDESC_BUFFER2_SIZESHIFT));
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET Rx Desc flag is set or not.
|
|
|
+ * @param DMARxDesc: pointer on a DMA Rx descriptor
|
|
|
+ * @param ETH_DMARxDescFlag: specifies the flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMARxDesc_OWN: OWN bit: descriptor is owned by DMA engine
|
|
|
+ * @arg ETH_DMARxDesc_AFM: DA Filter Fail for the rx frame
|
|
|
+ * @arg ETH_DMARxDesc_ES: Error summary
|
|
|
+ * @arg ETH_DMARxDesc_DE: Descriptor error: no more descriptors for receive frame
|
|
|
+ * @arg ETH_DMARxDesc_SAF: SA Filter Fail for the received frame
|
|
|
+ * @arg ETH_DMARxDesc_LE: Frame size not matching with length field
|
|
|
+ * @arg ETH_DMARxDesc_OE: Overflow Error: Frame was damaged due to buffer overflow
|
|
|
+ * @arg ETH_DMARxDesc_VLAN: VLAN Tag: received frame is a VLAN frame
|
|
|
+ * @arg ETH_DMARxDesc_FS: First descriptor of the frame
|
|
|
+ * @arg ETH_DMARxDesc_LS: Last descriptor of the frame
|
|
|
+ * @arg ETH_DMARxDesc_IPV4HCE: IPC Checksum Error/Giant Frame: Rx Ipv4 header checksum error
|
|
|
+ * @arg ETH_DMARxDesc_LC: Late collision occurred during reception
|
|
|
+ * @arg ETH_DMARxDesc_FT: Frame type - Ethernet, otherwise 802.3
|
|
|
+ * @arg ETH_DMARxDesc_RWT: Receive Watchdog Timeout: watchdog timer expired during reception
|
|
|
+ * @arg ETH_DMARxDesc_RE: Receive error: error reported by MII interface
|
|
|
+ * @arg ETH_DMARxDesc_DE: Dribble bit error: frame contains non int multiple of 8 bits
|
|
|
+ * @arg ETH_DMARxDesc_CE: CRC error
|
|
|
+ * @arg ETH_DMARxDesc_MAMPCE: Rx MAC Address/Payload Checksum Error: Rx MAC address matched/ Rx Payload Checksum Error
|
|
|
+ * @retval The new state of ETH_DMARxDescFlag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetDMARxDescFlagStatus(ETH_DMADESCTypeDef *DMARxDesc, uint32_t ETH_DMARxDescFlag)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMARxDESC_GET_FLAG(ETH_DMARxDescFlag));
|
|
|
+ if ((DMARxDesc->Status & ETH_DMARxDescFlag) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+#ifdef USE_ENHANCED_DMA_DESCRIPTORS
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET PTP Rx Desc extended flag is set or not.
|
|
|
+ * @param DMAPTPRxDesc: pointer on a DMA PTP Rx descriptor
|
|
|
+ * @param ETH_DMAPTPRxDescFlag: specifies the extended flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMAPTPRxDesc_PTPV: PTP version
|
|
|
+ * @arg ETH_DMAPTPRxDesc_PTPFT: PTP frame type
|
|
|
+ * @arg ETH_DMAPTPRxDesc_PTPMT: PTP message type
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPV6PR: IPv6 packet received
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPV4PR: IPv4 packet received
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPCB: IP checksum bypassed
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPPE: IP payload error
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPHE: IP header error
|
|
|
+ * @arg ETH_DMAPTPRxDesc_IPPT: IP payload type
|
|
|
+ * @retval The new state of ETH_DMAPTPRxDescExtendedFlag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetDMAPTPRxDescExtendedFlagStatus(ETH_DMADESCTypeDef *DMAPTPRxDesc, uint32_t ETH_DMAPTPRxDescExtendedFlag)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMAPTPRxDESC_GET_EXTENDED_FLAG(ETH_DMAPTPRxDescExtendedFlag));
|
|
|
+
|
|
|
+ if ((DMAPTPRxDesc->ExtendedStatus & ETH_DMAPTPRxDescExtendedFlag) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+#endif /* USE_ENHANCED_DMA_DESCRIPTORS */
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Set the specified DMA Rx Desc Own bit.
|
|
|
+ * @param DMARxDesc: Pointer on a Rx desc
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_SetDMARxDescOwnBit(ETH_DMADESCTypeDef *DMARxDesc)
|
|
|
+{
|
|
|
+ /* Set the DMA Rx Desc Own bit */
|
|
|
+ DMARxDesc->Status |= ETH_DMARxDesc_OWN;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Returns the specified DMA Rx Desc frame length.
|
|
|
+ * @param DMARxDesc: pointer on a DMA Rx descriptor
|
|
|
+ * @retval The Rx descriptor received frame length.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetDMARxDescFrameLength(ETH_DMADESCTypeDef *DMARxDesc)
|
|
|
+{
|
|
|
+ /* Return the Receive descriptor frame length */
|
|
|
+ return ((DMARxDesc->Status & ETH_DMARxDesc_FL) >> ETH_DMARXDESC_FRAME_LENGTHSHIFT);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the specified DMA Rx Desc receive interrupt.
|
|
|
+ * @param DMARxDesc: Pointer on a Rx desc
|
|
|
+ * @param NewState: new state of the specified DMA Rx Desc interrupt.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMARxDescReceiveITConfig(ETH_DMADESCTypeDef *DMARxDesc, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the DMA Rx Desc receive interrupt */
|
|
|
+ DMARxDesc->ControlBufferSize &=(~(uint32_t)ETH_DMARxDesc_DIC);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the DMA Rx Desc receive interrupt */
|
|
|
+ DMARxDesc->ControlBufferSize |= ETH_DMARxDesc_DIC;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Returns the specified ETHERNET DMA Rx Desc buffer size.
|
|
|
+ * @param DMARxDesc: pointer on a DMA Rx descriptor
|
|
|
+ * @param DMARxDesc_Buffer: specifies the DMA Rx Desc buffer.
|
|
|
+ * This parameter can be any one of the following values:
|
|
|
+ * @arg ETH_DMARxDesc_Buffer1 : DMA Rx Desc Buffer1
|
|
|
+ * @arg ETH_DMARxDesc_Buffer2 : DMA Rx Desc Buffer2
|
|
|
+ * @retval The Receive descriptor frame length.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetDMARxDescBufferSize(ETH_DMADESCTypeDef *DMARxDesc, uint32_t DMARxDesc_Buffer)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_RXDESC_BUFFER(DMARxDesc_Buffer));
|
|
|
+
|
|
|
+ if(DMARxDesc_Buffer != ETH_DMARxDesc_Buffer1)
|
|
|
+ {
|
|
|
+ /* Return the DMA Rx Desc buffer2 size */
|
|
|
+ return ((DMARxDesc->ControlBufferSize & ETH_DMARxDesc_RBS2) >> ETH_DMARXDESC_BUFFER2_SIZESHIFT);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Return the DMA Rx Desc buffer1 size */
|
|
|
+ return (DMARxDesc->ControlBufferSize & ETH_DMARxDesc_RBS1);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the size of the received packet.
|
|
|
+ * @param None
|
|
|
+ * @retval framelength: received packet size
|
|
|
+ */
|
|
|
+uint32_t ETH_GetRxPktSize(ETH_DMADESCTypeDef *DMARxDesc)
|
|
|
+{
|
|
|
+ uint32_t frameLength = 0;
|
|
|
+ if(((DMARxDesc->Status & ETH_DMARxDesc_OWN) == (uint32_t)RESET) &&
|
|
|
+ ((DMARxDesc->Status & ETH_DMARxDesc_ES) == (uint32_t)RESET) &&
|
|
|
+ ((DMARxDesc->Status & ETH_DMARxDesc_LS) != (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ /* Get the size of the packet: including 4 bytes of the CRC */
|
|
|
+ frameLength = ETH_GetDMARxDescFrameLength(DMARxDesc);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Return Frame Length */
|
|
|
+ return frameLength;
|
|
|
+}
|
|
|
+
|
|
|
+#ifdef USE_ENHANCED_DMA_DESCRIPTORS
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the Enhanced descriptor structure.
|
|
|
+ * @param NewState: new state of the Enhanced descriptor structure.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_EnhancedDescriptorCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable enhanced descriptor structure */
|
|
|
+ ETH->DMABMR |= ETH_DMABMR_EDE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable enhanced descriptor structure */
|
|
|
+ ETH->DMABMR &= ~ETH_DMABMR_EDE;
|
|
|
+ }
|
|
|
+}
|
|
|
+#endif /* USE_ENHANCED_DMA_DESCRIPTORS */
|
|
|
+
|
|
|
+/******************************************************************************/
|
|
|
+/* DMA functions */
|
|
|
+/******************************************************************************/
|
|
|
+/**
|
|
|
+ * @brief Resets all MAC subsystem internal registers and logic.
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_SoftwareReset(void)
|
|
|
+{
|
|
|
+ /* Set the SWR bit: resets all MAC subsystem internal registers and logic */
|
|
|
+ /* After reset all the registers holds their respective reset values */
|
|
|
+ ETH->DMABMR |= ETH_DMABMR_SR;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the ETHERNET software reset bit is set or not.
|
|
|
+ * @param None
|
|
|
+ * @retval The new state of DMA Bus Mode register SR bit (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetSoftwareResetStatus(void)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ if((ETH->DMABMR & ETH_DMABMR_SR) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET DMA flag is set or not.
|
|
|
+ * @param ETH_DMA_FLAG: specifies the flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMA_FLAG_TST : Time-stamp trigger flag
|
|
|
+ * @arg ETH_DMA_FLAG_PMT : PMT flag
|
|
|
+ * @arg ETH_DMA_FLAG_MMC : MMC flag
|
|
|
+ * @arg ETH_DMA_FLAG_DataTransferError : Error bits 0-data buffer, 1-desc. access
|
|
|
+ * @arg ETH_DMA_FLAG_ReadWriteError : Error bits 0-write trnsf, 1-read transfr
|
|
|
+ * @arg ETH_DMA_FLAG_AccessError : Error bits 0-Rx DMA, 1-Tx DMA
|
|
|
+ * @arg ETH_DMA_FLAG_NIS : Normal interrupt summary flag
|
|
|
+ * @arg ETH_DMA_FLAG_AIS : Abnormal interrupt summary flag
|
|
|
+ * @arg ETH_DMA_FLAG_ER : Early receive flag
|
|
|
+ * @arg ETH_DMA_FLAG_FBE : Fatal bus error flag
|
|
|
+ * @arg ETH_DMA_FLAG_ET : Early transmit flag
|
|
|
+ * @arg ETH_DMA_FLAG_RWT : Receive watchdog timeout flag
|
|
|
+ * @arg ETH_DMA_FLAG_RPS : Receive process stopped flag
|
|
|
+ * @arg ETH_DMA_FLAG_RBU : Receive buffer unavailable flag
|
|
|
+ * @arg ETH_DMA_FLAG_R : Receive flag
|
|
|
+ * @arg ETH_DMA_FLAG_TU : Underflow flag
|
|
|
+ * @arg ETH_DMA_FLAG_RO : Overflow flag
|
|
|
+ * @arg ETH_DMA_FLAG_TJT : Transmit jabber timeout flag
|
|
|
+ * @arg ETH_DMA_FLAG_TBU : Transmit buffer unavailable flag
|
|
|
+ * @arg ETH_DMA_FLAG_TPS : Transmit process stopped flag
|
|
|
+ * @arg ETH_DMA_FLAG_T : Transmit flag
|
|
|
+ * @retval The new state of ETH_DMA_FLAG (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetDMAFlagStatus(uint32_t ETH_DMA_FLAG)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_GET_IT(ETH_DMA_FLAG));
|
|
|
+ if ((ETH->DMASR & ETH_DMA_FLAG) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Clears the ETHERNET’s DMA pending flag.
|
|
|
+ * @param ETH_DMA_FLAG: specifies the flag to clear.
|
|
|
+ * This parameter can be any combination of the following values:
|
|
|
+ * @arg ETH_DMA_FLAG_NIS : Normal interrupt summary flag
|
|
|
+ * @arg ETH_DMA_FLAG_AIS : Abnormal interrupt summary flag
|
|
|
+ * @arg ETH_DMA_FLAG_ER : Early receive flag
|
|
|
+ * @arg ETH_DMA_FLAG_FBE : Fatal bus error flag
|
|
|
+ * @arg ETH_DMA_FLAG_ETI : Early transmit flag
|
|
|
+ * @arg ETH_DMA_FLAG_RWT : Receive watchdog timeout flag
|
|
|
+ * @arg ETH_DMA_FLAG_RPS : Receive process stopped flag
|
|
|
+ * @arg ETH_DMA_FLAG_RBU : Receive buffer unavailable flag
|
|
|
+ * @arg ETH_DMA_FLAG_R : Receive flag
|
|
|
+ * @arg ETH_DMA_FLAG_TU : Transmit Underflow flag
|
|
|
+ * @arg ETH_DMA_FLAG_RO : Receive Overflow flag
|
|
|
+ * @arg ETH_DMA_FLAG_TJT : Transmit jabber timeout flag
|
|
|
+ * @arg ETH_DMA_FLAG_TBU : Transmit buffer unavailable flag
|
|
|
+ * @arg ETH_DMA_FLAG_TPS : Transmit process stopped flag
|
|
|
+ * @arg ETH_DMA_FLAG_T : Transmit flag
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMAClearFlag(uint32_t ETH_DMA_FLAG)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_FLAG(ETH_DMA_FLAG));
|
|
|
+
|
|
|
+ /* Clear the selected ETHERNET DMA FLAG */
|
|
|
+ ETH->DMASR = (uint32_t) ETH_DMA_FLAG;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the specified ETHERNET DMA interrupts.
|
|
|
+ * @param ETH_DMA_IT: specifies the ETHERNET DMA interrupt sources to be
|
|
|
+ * enabled or disabled.
|
|
|
+ * This parameter can be any combination of the following values:
|
|
|
+ * @arg ETH_DMA_IT_NIS : Normal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_AIS : Abnormal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_ER : Early receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_FBE : Fatal bus error interrupt
|
|
|
+ * @arg ETH_DMA_IT_ET : Early transmit interrupt
|
|
|
+ * @arg ETH_DMA_IT_RWT : Receive watchdog timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_RPS : Receive process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_RBU : Receive buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_R : Receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_TU : Underflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_RO : Overflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_TJT : Transmit jabber timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_TBU : Transmit buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_TPS : Transmit process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_T : Transmit interrupt
|
|
|
+ * @param NewState: new state of the specified ETHERNET DMA interrupts.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMAITConfig(uint32_t ETH_DMA_IT, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_IT(ETH_DMA_IT));
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected ETHERNET DMA interrupts */
|
|
|
+ ETH->DMAIER |= ETH_DMA_IT;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected ETHERNET DMA interrupts */
|
|
|
+ ETH->DMAIER &=(~(uint32_t)ETH_DMA_IT);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET DMA interrupt has occurred or not.
|
|
|
+ * @param ETH_DMA_IT: specifies the interrupt source to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMA_IT_TST : Time-stamp trigger interrupt
|
|
|
+ * @arg ETH_DMA_IT_PMT : PMT interrupt
|
|
|
+ * @arg ETH_DMA_IT_MMC : MMC interrupt
|
|
|
+ * @arg ETH_DMA_IT_NIS : Normal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_AIS : Abnormal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_ER : Early receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_FBE : Fatal bus error interrupt
|
|
|
+ * @arg ETH_DMA_IT_ET : Early transmit interrupt
|
|
|
+ * @arg ETH_DMA_IT_RWT : Receive watchdog timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_RPS : Receive process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_RBU : Receive buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_R : Receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_TU : Underflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_RO : Overflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_TJT : Transmit jabber timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_TBU : Transmit buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_TPS : Transmit process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_T : Transmit interrupt
|
|
|
+ * @retval The new state of ETH_DMA_IT (SET or RESET).
|
|
|
+ */
|
|
|
+ITStatus ETH_GetDMAITStatus(uint32_t ETH_DMA_IT)
|
|
|
+{
|
|
|
+ ITStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_GET_IT(ETH_DMA_IT));
|
|
|
+ if ((ETH->DMASR & ETH_DMA_IT) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Clears the ETHERNET’s DMA IT pending bit.
|
|
|
+ * @param ETH_DMA_IT: specifies the interrupt pending bit to clear.
|
|
|
+ * This parameter can be any combination of the following values:
|
|
|
+ * @arg ETH_DMA_IT_NIS : Normal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_AIS : Abnormal interrupt summary
|
|
|
+ * @arg ETH_DMA_IT_ER : Early receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_FBE : Fatal bus error interrupt
|
|
|
+ * @arg ETH_DMA_IT_ETI : Early transmit interrupt
|
|
|
+ * @arg ETH_DMA_IT_RWT : Receive watchdog timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_RPS : Receive process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_RBU : Receive buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_R : Receive interrupt
|
|
|
+ * @arg ETH_DMA_IT_TU : Transmit Underflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_RO : Receive Overflow interrupt
|
|
|
+ * @arg ETH_DMA_IT_TJT : Transmit jabber timeout interrupt
|
|
|
+ * @arg ETH_DMA_IT_TBU : Transmit buffer unavailable interrupt
|
|
|
+ * @arg ETH_DMA_IT_TPS : Transmit process stopped interrupt
|
|
|
+ * @arg ETH_DMA_IT_T : Transmit interrupt
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMAClearITPendingBit(uint32_t ETH_DMA_IT)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_IT(ETH_DMA_IT));
|
|
|
+
|
|
|
+ /* Clear the selected ETHERNET DMA IT */
|
|
|
+ ETH->DMASR = (uint32_t) ETH_DMA_IT;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Returns the ETHERNET DMA Transmit Process State.
|
|
|
+ * @param None
|
|
|
+ * @retval The new ETHERNET DMA Transmit Process State:
|
|
|
+ * This can be one of the following values:
|
|
|
+ * - ETH_DMA_TransmitProcess_Stopped : Stopped - Reset or Stop Tx Command issued
|
|
|
+ * - ETH_DMA_TransmitProcess_Fetching : Running - fetching the Tx descriptor
|
|
|
+ * - ETH_DMA_TransmitProcess_Waiting : Running - waiting for status
|
|
|
+ * - ETH_DMA_TransmitProcess_Reading : Running - reading the data from host memory
|
|
|
+ * - ETH_DMA_TransmitProcess_Suspended : Suspended - Tx Descriptor unavailable
|
|
|
+ * - ETH_DMA_TransmitProcess_Closing : Running - closing Rx descriptor
|
|
|
+ */
|
|
|
+uint32_t ETH_GetTransmitProcessState(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMASR & ETH_DMASR_TS));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Returns the ETHERNET DMA Receive Process State.
|
|
|
+ * @param None
|
|
|
+ * @retval The new ETHERNET DMA Receive Process State:
|
|
|
+ * This can be one of the following values:
|
|
|
+ * - ETH_DMA_ReceiveProcess_Stopped : Stopped - Reset or Stop Rx Command issued
|
|
|
+ * - ETH_DMA_ReceiveProcess_Fetching : Running - fetching the Rx descriptor
|
|
|
+ * - ETH_DMA_ReceiveProcess_Waiting : Running - waiting for packet
|
|
|
+ * - ETH_DMA_ReceiveProcess_Suspended : Suspended - Rx Descriptor unavailable
|
|
|
+ * - ETH_DMA_ReceiveProcess_Closing : Running - closing descriptor
|
|
|
+ * - ETH_DMA_ReceiveProcess_Queuing : Running - queuing the receive frame into host memory
|
|
|
+ */
|
|
|
+uint32_t ETH_GetReceiveProcessState(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMASR & ETH_DMASR_RS));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Clears the ETHERNET transmit FIFO.
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_FlushTransmitFIFO(void)
|
|
|
+{
|
|
|
+ /* Set the Flush Transmit FIFO bit */
|
|
|
+ ETH->DMAOMR |= ETH_DMAOMR_FTF;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the ETHERNET flush transmit FIFO bit is cleared or not.
|
|
|
+ * @param None
|
|
|
+ * @retval The new state of ETHERNET flush transmit FIFO bit (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetFlushTransmitFIFOStatus(void)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ if ((ETH->DMAOMR & ETH_DMAOMR_FTF) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the DMA transmission.
|
|
|
+ * @param NewState: new state of the DMA transmission.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMATransmissionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the DMA transmission */
|
|
|
+ ETH->DMAOMR |= ETH_DMAOMR_ST;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the DMA transmission */
|
|
|
+ ETH->DMAOMR &= ~ETH_DMAOMR_ST;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the DMA reception.
|
|
|
+ * @param NewState: new state of the DMA reception.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_DMAReceptionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the DMA reception */
|
|
|
+ ETH->DMAOMR |= ETH_DMAOMR_SR;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the DMA reception */
|
|
|
+ ETH->DMAOMR &= ~ETH_DMAOMR_SR;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET DMA overflow flag is set or not.
|
|
|
+ * @param ETH_DMA_Overflow: specifies the DMA overflow flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_DMA_Overflow_RxFIFOCounter : Overflow for FIFO Overflows Counter
|
|
|
+ * @arg ETH_DMA_Overflow_MissedFrameCounter : Overflow for Buffer Unavailable Missed Frame Counter
|
|
|
+ * @retval The new state of ETHERNET DMA overflow Flag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetDMAOverflowStatus(uint32_t ETH_DMA_Overflow)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_DMA_GET_OVERFLOW(ETH_DMA_Overflow));
|
|
|
+
|
|
|
+ if ((ETH->DMAMFBOCR & ETH_DMA_Overflow) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA Rx Overflow Missed Frame Counter value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of Rx overflow Missed Frame Counter.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetRxOverflowMissedFrameCounter(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)((ETH->DMAMFBOCR & ETH_DMAMFBOCR_MFA)>>ETH_DMA_RX_OVERFLOW_MISSEDFRAMES_COUNTERSHIFT));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA Buffer Unavailable Missed Frame Counter value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of Buffer unavailable Missed Frame Counter.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetBufferUnavailableMissedFrameCounter(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMAMFBOCR) & ETH_DMAMFBOCR_MFC);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA DMACHTDR register value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of the current Tx desc start address.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetCurrentTxDescStartAddress(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMACHTDR));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA DMACHRDR register value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of the current Rx desc start address.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetCurrentRxDescStartAddress(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMACHRDR));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA DMACHTBAR register value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of the current transmit descriptor data buffer address.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetCurrentTxBufferAddress(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMACHTBAR));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the ETHERNET DMA DMACHRBAR register value.
|
|
|
+ * @param None
|
|
|
+ * @retval The value of the current receive descriptor data buffer address.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetCurrentRxBufferAddress(void)
|
|
|
+{
|
|
|
+ return ((uint32_t)(ETH->DMACHRBAR));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Resumes the DMA Transmission by writing to the DmaTxPollDemand register
|
|
|
+ * (the data written could be anything). This forces the DMA to resume transmission.
|
|
|
+ * @param None
|
|
|
+ * @retval None.
|
|
|
+ */
|
|
|
+void ETH_ResumeDMATransmission(void)
|
|
|
+{
|
|
|
+ ETH->DMATPDR = 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Resumes the DMA Transmission by writing to the DmaRxPollDemand register
|
|
|
+ * (the data written could be anything). This forces the DMA to resume reception.
|
|
|
+ * @param None
|
|
|
+ * @retval None.
|
|
|
+ */
|
|
|
+void ETH_ResumeDMAReception(void)
|
|
|
+{
|
|
|
+ ETH->DMARPDR = 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Set the DMA Receive status watchdog timer register value
|
|
|
+ * @param Value: DMA Receive status watchdog timer register value
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_SetReceiveWatchdogTimer(uint8_t Value)
|
|
|
+{
|
|
|
+ /* Set the DMA Receive status watchdog timer register */
|
|
|
+ ETH->DMARSWTR = Value;
|
|
|
+}
|
|
|
+
|
|
|
+/******************************************************************************/
|
|
|
+/* PHY functions */
|
|
|
+/******************************************************************************/
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Read a PHY register
|
|
|
+ * @param PHYAddress: PHY device address, is the index of one of supported 32 PHY devices.
|
|
|
+ * This parameter can be one of the following values: 0,..,31
|
|
|
+ * @param PHYReg: PHY register address, is the index of one of the 32 PHY register.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg PHY_BCR: Transceiver Basic Control Register
|
|
|
+ * @arg PHY_BSR: Transceiver Basic Status Register
|
|
|
+ * @arg PHY_SR : Transceiver Status Register
|
|
|
+ * @arg More PHY register could be read depending on the used PHY
|
|
|
+ * @retval ETH_ERROR: in case of timeout
|
|
|
+ * MAC MIIDR register value: Data read from the selected PHY register (correct read )
|
|
|
+ */
|
|
|
+uint16_t ETH_ReadPHYRegister(uint16_t PHYAddress, uint16_t PHYReg)
|
|
|
+{
|
|
|
+ uint32_t tmpreg = 0;
|
|
|
+__IO uint32_t timeout = 0;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_PHY_ADDRESS(PHYAddress));
|
|
|
+ assert_param(IS_ETH_PHY_REG(PHYReg));
|
|
|
+
|
|
|
+ /* Get the ETHERNET MACMIIAR value */
|
|
|
+ tmpreg = ETH->MACMIIAR;
|
|
|
+ /* Keep only the CSR Clock Range CR[2:0] bits value */
|
|
|
+ tmpreg &= ~MACMIIAR_CR_MASK;
|
|
|
+ /* Prepare the MII address register value */
|
|
|
+ tmpreg |=(((uint32_t)PHYAddress<<11) & ETH_MACMIIAR_PA); /* Set the PHY device address */
|
|
|
+ tmpreg |=(((uint32_t)PHYReg<<6) & ETH_MACMIIAR_MR); /* Set the PHY register address */
|
|
|
+ tmpreg &= ~ETH_MACMIIAR_MW; /* Set the read mode */
|
|
|
+ tmpreg |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
|
|
|
+ /* Write the result value into the MII Address register */
|
|
|
+ ETH->MACMIIAR = tmpreg;
|
|
|
+ /* Check for the Busy flag */
|
|
|
+ do
|
|
|
+ {
|
|
|
+ timeout++;
|
|
|
+ tmpreg = ETH->MACMIIAR;
|
|
|
+ } while ((tmpreg & ETH_MACMIIAR_MB) && (timeout < (uint32_t)PHY_READ_TO));
|
|
|
+ /* Return ERROR in case of timeout */
|
|
|
+ if(timeout == PHY_READ_TO)
|
|
|
+ {
|
|
|
+ return (uint16_t)ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Return data register value */
|
|
|
+ return (uint16_t)(ETH->MACMIIDR);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Write to a PHY register
|
|
|
+ * @param PHYAddress: PHY device address, is the index of one of supported 32 PHY devices.
|
|
|
+ * This parameter can be one of the following values: 0,..,31
|
|
|
+ * @param PHYReg: PHY register address, is the index of one of the 32 PHY register.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg PHY_BCR : Transceiver Control Register
|
|
|
+ * @arg More PHY register could be written depending on the used PHY
|
|
|
+ * @param PHYValue: the value to write
|
|
|
+ * @retval ETH_ERROR: in case of timeout
|
|
|
+ * ETH_SUCCESS: for correct write
|
|
|
+ */
|
|
|
+uint32_t ETH_WritePHYRegister(uint16_t PHYAddress, uint16_t PHYReg, uint16_t PHYValue)
|
|
|
+{
|
|
|
+ uint32_t tmpreg = 0;
|
|
|
+ __IO uint32_t timeout = 0;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_PHY_ADDRESS(PHYAddress));
|
|
|
+ assert_param(IS_ETH_PHY_REG(PHYReg));
|
|
|
+
|
|
|
+ /* Get the ETHERNET MACMIIAR value */
|
|
|
+ tmpreg = ETH->MACMIIAR;
|
|
|
+ /* Keep only the CSR Clock Range CR[2:0] bits value */
|
|
|
+ tmpreg &= ~MACMIIAR_CR_MASK;
|
|
|
+ /* Prepare the MII register address value */
|
|
|
+ tmpreg |=(((uint32_t)PHYAddress<<11) & ETH_MACMIIAR_PA); /* Set the PHY device address */
|
|
|
+ tmpreg |=(((uint32_t)PHYReg<<6) & ETH_MACMIIAR_MR); /* Set the PHY register address */
|
|
|
+ tmpreg |= ETH_MACMIIAR_MW; /* Set the write mode */
|
|
|
+ tmpreg |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
|
|
|
+ /* Give the value to the MII data register */
|
|
|
+ ETH->MACMIIDR = PHYValue;
|
|
|
+ /* Write the result value into the MII Address register */
|
|
|
+ ETH->MACMIIAR = tmpreg;
|
|
|
+ /* Check for the Busy flag */
|
|
|
+ do
|
|
|
+ {
|
|
|
+ timeout++;
|
|
|
+ tmpreg = ETH->MACMIIAR;
|
|
|
+ } while ((tmpreg & ETH_MACMIIAR_MB) && (timeout < (uint32_t)PHY_WRITE_TO));
|
|
|
+ /* Return ERROR in case of timeout */
|
|
|
+ if(timeout == PHY_WRITE_TO)
|
|
|
+ {
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Return SUCCESS */
|
|
|
+ return ETH_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the PHY loopBack mode.
|
|
|
+ * @Note: Don't be confused with ETH_MACLoopBackCmd function which enables internal
|
|
|
+ * loopback at MII level
|
|
|
+ * @param PHYAddress: PHY device address, is the index of one of supported 32 PHY devices.
|
|
|
+ * @param NewState: new state of the PHY loopBack mode.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval ETH_ERROR: in case of bad PHY configuration
|
|
|
+ * ETH_SUCCESS: for correct PHY configuration
|
|
|
+ */
|
|
|
+uint32_t ETH_PHYLoopBackCmd(uint16_t PHYAddress, FunctionalState NewState)
|
|
|
+{
|
|
|
+ uint16_t tmpreg = 0;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_PHY_ADDRESS(PHYAddress));
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ /* Get the PHY configuration to update it */
|
|
|
+ tmpreg = ETH_ReadPHYRegister(PHYAddress, PHY_BCR);
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the PHY loopback mode */
|
|
|
+ tmpreg |= PHY_Loopback;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the PHY loopback mode: normal mode */
|
|
|
+ tmpreg &= (uint16_t)(~(uint16_t)PHY_Loopback);
|
|
|
+ }
|
|
|
+ /* Update the PHY control register with the new configuration */
|
|
|
+ if(ETH_WritePHYRegister(PHYAddress, PHY_BCR, tmpreg) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ return ETH_SUCCESS;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Return SUCCESS */
|
|
|
+ return ETH_ERROR;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/******************************************************************************/
|
|
|
+/* Power Management(PMT) functions */
|
|
|
+/******************************************************************************/
|
|
|
+/**
|
|
|
+ * @brief Reset Wakeup frame filter register pointer.
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_ResetWakeUpFrameFilterRegisterPointer(void)
|
|
|
+{
|
|
|
+ /* Resets the Remote Wake-up Frame Filter register pointer to 0x0000 */
|
|
|
+ ETH->MACPMTCSR |= ETH_MACPMTCSR_WFFRPR;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Populates the remote wakeup frame registers.
|
|
|
+ * @param Buffer: Pointer on remote WakeUp Frame Filter Register buffer data (8 words).
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_SetWakeUpFrameFilterRegister(uint32_t *Buffer)
|
|
|
+{
|
|
|
+ uint32_t i = 0;
|
|
|
+
|
|
|
+ /* Fill Remote Wake-up Frame Filter register with Buffer data */
|
|
|
+ for(i =0; i<ETH_WAKEUP_REGISTER_LENGTH; i++)
|
|
|
+ {
|
|
|
+ /* Write each time to the same register */
|
|
|
+ ETH->MACRWUFFR = Buffer[i];
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables any unicast packet filtered by the MAC address
|
|
|
+ * recognition to be a wake-up frame.
|
|
|
+ * @param NewState: new state of the MAC Global Unicast Wake-Up.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_GlobalUnicastWakeUpCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC Global Unicast Wake-Up */
|
|
|
+ ETH->MACPMTCSR |= ETH_MACPMTCSR_GU;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC Global Unicast Wake-Up */
|
|
|
+ ETH->MACPMTCSR &= ~ETH_MACPMTCSR_GU;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET PMT flag is set or not.
|
|
|
+ * @param ETH_PMT_FLAG: specifies the flag to check.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_PMT_FLAG_WUFFRPR : Wake-Up Frame Filter Register Pointer Reset
|
|
|
+ * @arg ETH_PMT_FLAG_WUFR : Wake-Up Frame Received
|
|
|
+ * @arg ETH_PMT_FLAG_MPR : Magic Packet Received
|
|
|
+ * @retval The new state of ETHERNET PMT Flag (SET or RESET).
|
|
|
+ */
|
|
|
+FlagStatus ETH_GetPMTFlagStatus(uint32_t ETH_PMT_FLAG)
|
|
|
+{
|
|
|
+ FlagStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_PMT_GET_FLAG(ETH_PMT_FLAG));
|
|
|
+
|
|
|
+ if ((ETH->MACPMTCSR & ETH_PMT_FLAG) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC Wake-Up Frame Detection.
|
|
|
+ * @param NewState: new state of the MAC Wake-Up Frame Detection.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_WakeUpFrameDetectionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC Wake-Up Frame Detection */
|
|
|
+ ETH->MACPMTCSR |= ETH_MACPMTCSR_WFE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC Wake-Up Frame Detection */
|
|
|
+ ETH->MACPMTCSR &= ~ETH_MACPMTCSR_WFE;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC Magic Packet Detection.
|
|
|
+ * @param NewState: new state of the MAC Magic Packet Detection.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MagicPacketDetectionCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC Magic Packet Detection */
|
|
|
+ ETH->MACPMTCSR |= ETH_MACPMTCSR_MPE;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC Magic Packet Detection */
|
|
|
+ ETH->MACPMTCSR &= ~ETH_MACPMTCSR_MPE;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MAC Power Down.
|
|
|
+ * @param NewState: new state of the MAC Power Down.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_PowerDownCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MAC Power Down */
|
|
|
+ /* This puts the MAC in power down mode */
|
|
|
+ ETH->MACPMTCSR |= ETH_MACPMTCSR_PD;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MAC Power Down */
|
|
|
+ ETH->MACPMTCSR &= ~ETH_MACPMTCSR_PD;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/******************************************************************************/
|
|
|
+/* MMC functions */
|
|
|
+/******************************************************************************/
|
|
|
+/**
|
|
|
+ * @brief Preset and Initialize the MMC counters to almost-full value: 0xFFFF_FFF0 (full - 16)
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCCounterFullPreset(void)
|
|
|
+{
|
|
|
+ /* Preset and Initialize the MMC counters to almost-full value */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_MCFHP | ETH_MMCCR_MCP;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Preset and Initialize the MMC counters to almost-hal value: 0x7FFF_FFF0 (half - 16).
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCCounterHalfPreset(void)
|
|
|
+{
|
|
|
+ /* Preset the MMC counters to almost-full value */
|
|
|
+ ETH->MMCCR &= ~ETH_MMCCR_MCFHP;
|
|
|
+ /* Initialize the MMC counters to almost-half value */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_MCP;
|
|
|
+}
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @brief Enables or disables the MMC Counter Freeze.
|
|
|
+ * @param NewState: new state of the MMC Counter Freeze.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCCounterFreezeCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MMC Counter Freeze */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_MCF;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MMC Counter Freeze */
|
|
|
+ ETH->MMCCR &= ~ETH_MMCCR_MCF;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MMC Reset On Read.
|
|
|
+ * @param NewState: new state of the MMC Reset On Read.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCResetOnReadCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the MMC Counter reset on read */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_ROR;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the MMC Counter reset on read */
|
|
|
+ ETH->MMCCR &= ~ETH_MMCCR_ROR;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the MMC Counter Stop Rollover.
|
|
|
+ * @param NewState: new state of the MMC Counter Stop Rollover.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCCounterRolloverCmd(FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Disable the MMC Counter Stop Rollover */
|
|
|
+ ETH->MMCCR &= ~ETH_MMCCR_CSR;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Enable the MMC Counter Stop Rollover */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_CSR;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Resets the MMC Counters.
|
|
|
+ * @param None
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCCountersReset(void)
|
|
|
+{
|
|
|
+ /* Resets the MMC Counters */
|
|
|
+ ETH->MMCCR |= ETH_MMCCR_CR;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Enables or disables the specified ETHERNET MMC interrupts.
|
|
|
+ * @param ETH_MMC_IT: specifies the ETHERNET MMC interrupt sources to be enabled or disabled.
|
|
|
+ * This parameter can be any combination of Tx interrupt or
|
|
|
+ * any combination of Rx interrupt (but not both)of the following values:
|
|
|
+ * @arg ETH_MMC_IT_TGF : When Tx good frame counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_TGFMSC: When Tx good multi col counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_TGFSC : When Tx good single col counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RGUF : When Rx good unicast frames counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RFAE : When Rx alignment error counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RFCE : When Rx crc error counter reaches half the maximum value
|
|
|
+ * @param NewState: new state of the specified ETHERNET MMC interrupts.
|
|
|
+ * This parameter can be: ENABLE or DISABLE.
|
|
|
+ * @retval None
|
|
|
+ */
|
|
|
+void ETH_MMCITConfig(uint32_t ETH_MMC_IT, FunctionalState NewState)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MMC_IT(ETH_MMC_IT));
|
|
|
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
+
|
|
|
+ if ((ETH_MMC_IT & (uint32_t)0x10000000) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ /* Remove Register mak from IT */
|
|
|
+ ETH_MMC_IT &= 0xEFFFFFFF;
|
|
|
+
|
|
|
+ /* ETHERNET MMC Rx interrupts selected */
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected ETHERNET MMC interrupts */
|
|
|
+ ETH->MMCRIMR &=(~(uint32_t)ETH_MMC_IT);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected ETHERNET MMC interrupts */
|
|
|
+ ETH->MMCRIMR |= ETH_MMC_IT;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* ETHERNET MMC Tx interrupts selected */
|
|
|
+ if (NewState != DISABLE)
|
|
|
+ {
|
|
|
+ /* Enable the selected ETHERNET MMC interrupts */
|
|
|
+ ETH->MMCTIMR &=(~(uint32_t)ETH_MMC_IT);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* Disable the selected ETHERNET MMC interrupts */
|
|
|
+ ETH->MMCTIMR |= ETH_MMC_IT;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Checks whether the specified ETHERNET MMC IT is set or not.
|
|
|
+ * @param ETH_MMC_IT: specifies the ETHERNET MMC interrupt.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MMC_IT_TxFCGC: When Tx good frame counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_TxMCGC: When Tx good multi col counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_TxSCGC: When Tx good single col counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RxUGFC: When Rx good unicast frames counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RxAEC : When Rx alignment error counter reaches half the maximum value
|
|
|
+ * @arg ETH_MMC_IT_RxCEC : When Rx crc error counter reaches half the maximum value
|
|
|
+ * @retval The value of ETHERNET MMC IT (SET or RESET).
|
|
|
+ */
|
|
|
+ITStatus ETH_GetMMCITStatus(uint32_t ETH_MMC_IT)
|
|
|
+{
|
|
|
+ ITStatus bitstatus = RESET;
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MMC_GET_IT(ETH_MMC_IT));
|
|
|
+
|
|
|
+ if ((ETH_MMC_IT & (uint32_t)0x10000000) != (uint32_t)RESET)
|
|
|
+ {
|
|
|
+ /* ETHERNET MMC Rx interrupts selected */
|
|
|
+ /* Check if the ETHERNET MMC Rx selected interrupt is enabled and occurred */
|
|
|
+ if ((((ETH->MMCRIR & ETH_MMC_IT) != (uint32_t)RESET)) && ((ETH->MMCRIMR & ETH_MMC_IT) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ /* ETHERNET MMC Tx interrupts selected */
|
|
|
+ /* Check if the ETHERNET MMC Tx selected interrupt is enabled and occurred */
|
|
|
+ if ((((ETH->MMCTIR & ETH_MMC_IT) != (uint32_t)RESET)) && ((ETH->MMCRIMR & ETH_MMC_IT) == (uint32_t)RESET))
|
|
|
+ {
|
|
|
+ bitstatus = SET;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ bitstatus = RESET;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return bitstatus;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @brief Get the specified ETHERNET MMC register value.
|
|
|
+ * @param ETH_MMCReg: specifies the ETHERNET MMC register.
|
|
|
+ * This parameter can be one of the following values:
|
|
|
+ * @arg ETH_MMCCR : MMC CR register
|
|
|
+ * @arg ETH_MMCRIR : MMC RIR register
|
|
|
+ * @arg ETH_MMCTIR : MMC TIR register
|
|
|
+ * @arg ETH_MMCRIMR : MMC RIMR register
|
|
|
+ * @arg ETH_MMCTIMR : MMC TIMR register
|
|
|
+ * @arg ETH_MMCTGFSCCR : MMC TGFSCCR register
|
|
|
+ * @arg ETH_MMCTGFMSCCR: MMC TGFMSCCR register
|
|
|
+ * @arg ETH_MMCTGFCR : MMC TGFCR register
|
|
|
+ * @arg ETH_MMCRFCECR : MMC RFCECR register
|
|
|
+ * @arg ETH_MMCRFAECR : MMC RFAECR register
|
|
|
+ * @arg ETH_MMCRGUFCR : MMC RGUFCRregister
|
|
|
+ * @retval The value of ETHERNET MMC Register value.
|
|
|
+ */
|
|
|
+uint32_t ETH_GetMMCRegister(uint32_t ETH_MMCReg)
|
|
|
+{
|
|
|
+ /* Check the parameters */
|
|
|
+ assert_param(IS_ETH_MMC_REGISTER(ETH_MMCReg));
|
|
|
+
|
|
|
+ /* Return the selected register value */
|
|
|
+ return (*(__IO uint32_t *)(ETH_MAC_BASE + ETH_MMCReg));
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * @}
|
|
|
+ */
|
|
|
+
|
|
|
+/**
|
|
|
+ * @}
|
|
|
+ */
|
yungchi@cs.nctu.edu.tw