| /*********************************************************************************************************************** | |
| * DISCLAIMER | |
| * This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products. No | |
| * other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all | |
| * applicable laws, including copyright laws. | |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING | |
| * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. TO THE MAXIMUM | |
| * EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES | |
| * SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS | |
| * SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of | |
| * this software. By using this software, you agree to the additional terms and conditions found by accessing the | |
| * following link: | |
| * http://www.renesas.com/disclaimer | |
| * | |
| * Copyright (C) 2018 Renesas Electronics Corporation. All rights reserved. | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * File Name : NetworkInterface.c | |
| * Device(s) : RX | |
| * Description : Interfaces FreeRTOS TCP/IP stack to RX Ethernet driver. | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * History : DD.MM.YYYY Version Description | |
| * : 07.03.2018 0.1 Development | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * Includes <System Includes> , "Project Includes" | |
| ***********************************************************************************************************************/ | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| /* FreeRTOS includes. */ | |
| #include "FreeRTOS.h" | |
| #include "task.h" | |
| #include "FreeRTOS_IP.h" | |
| #include "FreeRTOS_IP_Private.h" | |
| /*#include "FreeRTOS_DNS.h" */ | |
| #include "NetworkBufferManagement.h" | |
| #include "NetworkInterface.h" | |
| #include "r_ether_rx_if.h" | |
| #include "r_pinset.h" | |
| /*********************************************************************************************************************** | |
| * Macro definitions | |
| **********************************************************************************************************************/ | |
| #define ETHER_BUFSIZE_MIN 60 | |
| #if defined( BSP_MCU_RX65N ) || defined( BSP_MCU_RX64M ) || defined( BSP_MCU_RX71M ) | |
| #if ETHER_CFG_MODE_SEL == 0 | |
| #define R_ETHER_PinSet_CHANNEL_0() R_ETHER_PinSet_ETHERC0_MII() | |
| #elif ETHER_CFG_MODE_SEL == 1 | |
| #define R_ETHER_PinSet_CHANNEL_0() R_ETHER_PinSet_ETHERC0_RMII() | |
| #endif | |
| #elif defined( BSP_MCU_RX63N ) | |
| #if ETHER_CFG_MODE_SEL == 0 | |
| #define R_ETHER_PinSet_CHANNEL_0() R_ETHER_PinSet_ETHERC_MII() | |
| #elif ETHER_CFG_MODE_SEL == 1 | |
| #define R_ETHER_PinSet_CHANNEL_0() R_ETHER_PinSet_ETHERC_RMII() | |
| #endif | |
| #endif /* if defined( BSP_MCU_RX65N ) || defined( BSP_MCU_RX64M ) || defined( BSP_MCU_RX71M ) */ | |
| #ifndef PHY_LS_HIGH_CHECK_TIME_MS | |
| /* Check if the LinkSStatus in the PHY is still high after 2 seconds of not | |
| * receiving packets. */ | |
| #define PHY_LS_HIGH_CHECK_TIME_MS 2000 | |
| #endif | |
| #ifndef PHY_LS_LOW_CHECK_TIME_MS | |
| /* Check if the LinkSStatus in the PHY is still low every second. */ | |
| #define PHY_LS_LOW_CHECK_TIME_MS 1000 | |
| #endif | |
| /*********************************************************************************************************************** | |
| * Private global variables and functions | |
| **********************************************************************************************************************/ | |
| typedef enum | |
| { | |
| eMACInit, /* Must initialise MAC. */ | |
| eMACPass, /* Initialisation was successful. */ | |
| eMACFailed, /* Initialisation failed. */ | |
| } eMAC_INIT_STATUS_TYPE; | |
| static TaskHandle_t ether_receive_check_task_handle = 0; | |
| static TaskHandle_t ether_link_check_task_handle = 0; | |
| static TaskHandle_t xTaskToNotify = NULL; | |
| static BaseType_t xPHYLinkStatus; | |
| static BaseType_t xReportedStatus; | |
| static eMAC_INIT_STATUS_TYPE xMacInitStatus = eMACInit; | |
| static int16_t SendData( uint8_t * pucBuffer, | |
| size_t length ); | |
| static int InitializeNetwork( void ); | |
| static void prvEMACDeferredInterruptHandlerTask( void * pvParameters ); | |
| static void clear_all_ether_rx_discriptors( uint32_t event ); | |
| int32_t callback_ether_regist( void ); | |
| void EINT_Trig_isr( void * ); | |
| void get_random_number( uint8_t * data, | |
| uint32_t len ); | |
| void prvLinkStatusChange( BaseType_t xStatus ); | |
| #if ( ipconfigHAS_PRINTF != 0 ) | |
| static void prvMonitorResources( void ); | |
| #endif | |
| /*********************************************************************************************************************** | |
| * Function Name: xNetworkInterfaceInitialise () | |
| * Description : Initialization of Ethernet driver. | |
| * Arguments : none | |
| * Return Value : pdPASS, pdFAIL | |
| **********************************************************************************************************************/ | |
| BaseType_t xNetworkInterfaceInitialise( void ) | |
| { | |
| BaseType_t xReturn; | |
| if( xMacInitStatus == eMACInit ) | |
| { | |
| /* | |
| * Perform the hardware specific network initialization here using the Ethernet driver library to initialize the | |
| * Ethernet hardware, initialize DMA descriptors, and perform a PHY auto-negotiation to obtain a network link. | |
| * | |
| * InitialiseNetwork() uses Ethernet peripheral driver library function, and returns 0 if the initialization fails. | |
| */ | |
| if( InitializeNetwork() == pdFALSE ) | |
| { | |
| xMacInitStatus = eMACFailed; | |
| } | |
| else | |
| { | |
| /* Indicate that the MAC initialisation succeeded. */ | |
| xMacInitStatus = eMACPass; | |
| } | |
| FreeRTOS_printf( ( "InitializeNetwork returns %s\n", ( xMacInitStatus == eMACPass ) ? "OK" : " Fail" ) ); | |
| } | |
| if( xMacInitStatus == eMACPass ) | |
| { | |
| xReturn = xPHYLinkStatus; | |
| } | |
| else | |
| { | |
| xReturn = pdFAIL; | |
| } | |
| FreeRTOS_printf( ( "xNetworkInterfaceInitialise returns %d\n", xReturn ) ); | |
| return xReturn; | |
| } /* End of function xNetworkInterfaceInitialise() */ | |
| /*********************************************************************************************************************** | |
| * Function Name: xNetworkInterfaceOutput () | |
| * Description : Simple network output interface. | |
| * Arguments : pxDescriptor, xReleaseAfterSend | |
| * Return Value : pdTRUE, pdFALSE | |
| **********************************************************************************************************************/ | |
| BaseType_t xNetworkInterfaceOutput( NetworkBufferDescriptor_t * const pxDescriptor, | |
| BaseType_t xReleaseAfterSend ) | |
| { | |
| BaseType_t xReturn = pdFALSE; | |
| /* Simple network interfaces (as opposed to more efficient zero copy network | |
| * interfaces) just use Ethernet peripheral driver library functions to copy | |
| * data from the FreeRTOS+TCP buffer into the peripheral driver's own buffer. | |
| * This example assumes SendData() is a peripheral driver library function that | |
| * takes a pointer to the start of the data to be sent and the length of the | |
| * data to be sent as two separate parameters. The start of the data is located | |
| * by pxDescriptor->pucEthernetBuffer. The length of the data is located | |
| * by pxDescriptor->xDataLength. */ | |
| if( xPHYLinkStatus != 0 ) | |
| { | |
| if( SendData( pxDescriptor->pucEthernetBuffer, pxDescriptor->xDataLength ) >= 0 ) | |
| { | |
| xReturn = pdTRUE; | |
| /* Call the standard trace macro to log the send event. */ | |
| iptraceNETWORK_INTERFACE_TRANSMIT(); | |
| } | |
| } | |
| else | |
| { | |
| /* As the PHY Link Status is low, it makes no sense trying to deliver a packet. */ | |
| } | |
| if( xReleaseAfterSend != pdFALSE ) | |
| { | |
| /* It is assumed SendData() copies the data out of the FreeRTOS+TCP Ethernet | |
| * buffer. The Ethernet buffer is therefore no longer needed, and must be | |
| * freed for re-use. */ | |
| vReleaseNetworkBufferAndDescriptor( pxDescriptor ); | |
| } | |
| return xReturn; | |
| } /* End of function xNetworkInterfaceOutput() */ | |
| #if ( ipconfigHAS_PRINTF != 0 ) | |
| static void prvMonitorResources() | |
| { | |
| static UBaseType_t uxLastMinBufferCount = 0u; | |
| static UBaseType_t uxCurrentBufferCount = 0u; | |
| static size_t uxMinLastSize = 0uL; | |
| static size_t uxCurLastSize = 0uL; | |
| size_t uxMinSize; | |
| size_t uxCurSize; | |
| uxCurrentBufferCount = uxGetMinimumFreeNetworkBuffers(); | |
| if( uxLastMinBufferCount != uxCurrentBufferCount ) | |
| { | |
| /* The logging produced below may be helpful | |
| * while tuning +TCP: see how many buffers are in use. */ | |
| uxLastMinBufferCount = uxCurrentBufferCount; | |
| FreeRTOS_printf( ( "Network buffers: %lu lowest %lu\n", | |
| uxGetNumberOfFreeNetworkBuffers(), uxCurrentBufferCount ) ); | |
| } | |
| uxMinSize = xPortGetMinimumEverFreeHeapSize(); | |
| uxCurSize = xPortGetFreeHeapSize(); | |
| if( uxMinLastSize != uxMinSize ) | |
| { | |
| uxCurLastSize = uxCurSize; | |
| uxMinLastSize = uxMinSize; | |
| FreeRTOS_printf( ( "Heap: current %lu lowest %lu\n", uxCurSize, uxMinSize ) ); | |
| } | |
| #if ( ipconfigCHECK_IP_QUEUE_SPACE != 0 ) | |
| { | |
| static UBaseType_t uxLastMinQueueSpace = 0; | |
| UBaseType_t uxCurrentCount = 0u; | |
| uxCurrentCount = uxGetMinimumIPQueueSpace(); | |
| if( uxLastMinQueueSpace != uxCurrentCount ) | |
| { | |
| /* The logging produced below may be helpful | |
| * while tuning +TCP: see how many buffers are in use. */ | |
| uxLastMinQueueSpace = uxCurrentCount; | |
| FreeRTOS_printf( ( "Queue space: lowest %lu\n", uxCurrentCount ) ); | |
| } | |
| } | |
| #endif /* ipconfigCHECK_IP_QUEUE_SPACE */ | |
| } | |
| #endif /* ( ipconfigHAS_PRINTF != 0 ) */ | |
| /*********************************************************************************************************************** | |
| * Function Name: prvEMACDeferredInterruptHandlerTask () | |
| * Description : The deferred interrupt handler is a standard RTOS task. | |
| * Arguments : pvParameters | |
| * Return Value : none | |
| **********************************************************************************************************************/ | |
| static void prvEMACDeferredInterruptHandlerTask( void * pvParameters ) | |
| { | |
| NetworkBufferDescriptor_t * pxBufferDescriptor; | |
| int32_t xBytesReceived = 0; | |
| /* Avoid compiler warning about unreferenced parameter. */ | |
| ( void ) pvParameters; | |
| /* Used to indicate that xSendEventStructToIPTask() is being called because | |
| * of an Ethernet receive event. */ | |
| IPStackEvent_t xRxEvent; | |
| uint8_t * buffer_pointer; | |
| /* Some variables related to monitoring the PHY. */ | |
| TimeOut_t xPhyTime; | |
| TickType_t xPhyRemTime; | |
| const TickType_t ulMaxBlockTime = pdMS_TO_TICKS( 100UL ); | |
| vTaskSetTimeOutState( &xPhyTime ); | |
| xPhyRemTime = pdMS_TO_TICKS( PHY_LS_LOW_CHECK_TIME_MS ); | |
| FreeRTOS_printf( ( "Deferred Interrupt Handler Task started\n" ) ); | |
| xTaskToNotify = ether_receive_check_task_handle; | |
| for( ; ; ) | |
| { | |
| #if ( ipconfigHAS_PRINTF != 0 ) | |
| { | |
| prvMonitorResources(); | |
| } | |
| #endif /* ipconfigHAS_PRINTF != 0 ) */ | |
| /* Wait for the Ethernet MAC interrupt to indicate that another packet | |
| * has been received. */ | |
| if( xBytesReceived <= 0 ) | |
| { | |
| ulTaskNotifyTake( pdFALSE, ulMaxBlockTime ); | |
| } | |
| /* See how much data was received. */ | |
| xBytesReceived = R_ETHER_Read_ZC2( ETHER_CHANNEL_0, ( void ** ) &buffer_pointer ); | |
| if( xBytesReceived < 0 ) | |
| { | |
| /* This is an error. Logged. */ | |
| FreeRTOS_printf( ( "R_ETHER_Read_ZC2: rc = %d\n", xBytesReceived ) ); | |
| } | |
| else if( xBytesReceived > 0 ) | |
| { | |
| /* Allocate a network buffer descriptor that points to a buffer | |
| * large enough to hold the received frame. As this is the simple | |
| * rather than efficient example the received data will just be copied | |
| * into this buffer. */ | |
| pxBufferDescriptor = pxGetNetworkBufferWithDescriptor( ( size_t ) xBytesReceived, 0 ); | |
| if( pxBufferDescriptor != NULL ) | |
| { | |
| /* pxBufferDescriptor->pucEthernetBuffer now points to an Ethernet | |
| * buffer large enough to hold the received data. Copy the | |
| * received data into pcNetworkBuffer->pucEthernetBuffer. Here it | |
| * is assumed ReceiveData() is a peripheral driver function that | |
| * copies the received data into a buffer passed in as the function's | |
| * parameter. Remember! While is is a simple robust technique - | |
| * it is not efficient. An example that uses a zero copy technique | |
| * is provided further down this page. */ | |
| memcpy( pxBufferDescriptor->pucEthernetBuffer, buffer_pointer, ( size_t ) xBytesReceived ); | |
| /*ReceiveData( pxBufferDescriptor->pucEthernetBuffer ); */ | |
| /* Set the actual packet length, in case a larger buffer was returned. */ | |
| pxBufferDescriptor->xDataLength = ( size_t ) xBytesReceived; | |
| R_ETHER_Read_ZC2_BufRelease( ETHER_CHANNEL_0 ); | |
| /* See if the data contained in the received Ethernet frame needs | |
| * to be processed. NOTE! It is preferable to do this in | |
| * the interrupt service routine itself, which would remove the need | |
| * to unblock this task for packets that don't need processing. */ | |
| if( eConsiderFrameForProcessing( pxBufferDescriptor->pucEthernetBuffer ) == eProcessBuffer ) | |
| { | |
| /* The event about to be sent to the TCP/IP is an Rx event. */ | |
| xRxEvent.eEventType = eNetworkRxEvent; | |
| /* pvData is used to point to the network buffer descriptor that | |
| * now references the received data. */ | |
| xRxEvent.pvData = ( void * ) pxBufferDescriptor; | |
| /* Send the data to the TCP/IP stack. */ | |
| if( xSendEventStructToIPTask( &xRxEvent, 0 ) == pdFALSE ) | |
| { | |
| /* The buffer could not be sent to the IP task so the buffer must be released. */ | |
| vReleaseNetworkBufferAndDescriptor( pxBufferDescriptor ); | |
| /* Make a call to the standard trace macro to log the occurrence. */ | |
| iptraceETHERNET_RX_EVENT_LOST(); | |
| clear_all_ether_rx_discriptors( 0 ); | |
| } | |
| else | |
| { | |
| /* The message was successfully sent to the TCP/IP stack. | |
| * Call the standard trace macro to log the occurrence. */ | |
| iptraceNETWORK_INTERFACE_RECEIVE(); | |
| R_NOP(); | |
| } | |
| } | |
| else | |
| { | |
| /* The Ethernet frame can be dropped, but the Ethernet buffer must be released. */ | |
| vReleaseNetworkBufferAndDescriptor( pxBufferDescriptor ); | |
| } | |
| } | |
| else | |
| { | |
| /* The event was lost because a network buffer was not available. | |
| * Call the standard trace macro to log the occurrence. */ | |
| iptraceETHERNET_RX_EVENT_LOST(); | |
| clear_all_ether_rx_discriptors( 1 ); | |
| FreeRTOS_printf( ( "R_ETHER_Read_ZC2: Cleared descriptors\n" ) ); | |
| } | |
| } | |
| if( xBytesReceived > 0 ) | |
| { | |
| /* A packet was received. No need to check for the PHY status now, | |
| * but set a timer to check it later on. */ | |
| vTaskSetTimeOutState( &xPhyTime ); | |
| xPhyRemTime = pdMS_TO_TICKS( PHY_LS_HIGH_CHECK_TIME_MS ); | |
| /* Indicate that the Link Status is high, so that | |
| * xNetworkInterfaceOutput() can send packets. */ | |
| if( xPHYLinkStatus == 0 ) | |
| { | |
| xPHYLinkStatus = 1; | |
| FreeRTOS_printf( ( "prvEMACHandlerTask: PHY LS assume %d\n", xPHYLinkStatus ) ); | |
| } | |
| } | |
| else if( ( xTaskCheckForTimeOut( &xPhyTime, &xPhyRemTime ) != pdFALSE ) || ( FreeRTOS_IsNetworkUp() == pdFALSE ) ) | |
| { | |
| R_ETHER_LinkProcess( 0 ); | |
| if( xPHYLinkStatus != xReportedStatus ) | |
| { | |
| xPHYLinkStatus = xReportedStatus; | |
| FreeRTOS_printf( ( "prvEMACHandlerTask: PHY LS now %d\n", xPHYLinkStatus ) ); | |
| } | |
| vTaskSetTimeOutState( &xPhyTime ); | |
| if( xPHYLinkStatus != 0 ) | |
| { | |
| xPhyRemTime = pdMS_TO_TICKS( PHY_LS_HIGH_CHECK_TIME_MS ); | |
| } | |
| else | |
| { | |
| xPhyRemTime = pdMS_TO_TICKS( PHY_LS_LOW_CHECK_TIME_MS ); | |
| } | |
| } | |
| } | |
| } /* End of function prvEMACDeferredInterruptHandlerTask() */ | |
| /*********************************************************************************************************************** | |
| * Function Name: vNetworkInterfaceAllocateRAMToBuffers () | |
| * Description : . | |
| * Arguments : pxNetworkBuffers | |
| * Return Value : none | |
| **********************************************************************************************************************/ | |
| void vNetworkInterfaceAllocateRAMToBuffers( NetworkBufferDescriptor_t pxNetworkBuffers[ ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS ] ) | |
| { | |
| uint32_t ul; | |
| uint8_t * buffer_address; | |
| R_EXTERN_SEC( B_ETHERNET_BUFFERS_1 ) | |
| buffer_address = R_SECTOP( B_ETHERNET_BUFFERS_1 ); | |
| for( ul = 0; ul < ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS; ul++ ) | |
| { | |
| pxNetworkBuffers[ ul ].pucEthernetBuffer = ( buffer_address + ( ETHER_CFG_BUFSIZE * ul ) ); | |
| } | |
| } /* End of function vNetworkInterfaceAllocateRAMToBuffers() */ | |
| /*********************************************************************************************************************** | |
| * Function Name: prvLinkStatusChange () | |
| * Description : Function will be called when the Link Status of the phy has changed ( see ether_callback.c ) | |
| * Arguments : xStatus : true when statyus has become high | |
| * Return Value : void | |
| **********************************************************************************************************************/ | |
| void prvLinkStatusChange( BaseType_t xStatus ) | |
| { | |
| if( xReportedStatus != xStatus ) | |
| { | |
| FreeRTOS_printf( ( "prvLinkStatusChange( %d )\n", xStatus ) ); | |
| xReportedStatus = xStatus; | |
| } | |
| } | |
| /*********************************************************************************************************************** | |
| * Function Name: InitializeNetwork () | |
| * Description : | |
| * Arguments : none | |
| * Return Value : pdTRUE, pdFALSE | |
| **********************************************************************************************************************/ | |
| static int InitializeNetwork( void ) | |
| { | |
| ether_return_t eth_ret; | |
| BaseType_t return_code = pdFALSE; | |
| ether_param_t param; | |
| uint8_t myethaddr[ 6 ] = | |
| { | |
| configMAC_ADDR0, | |
| configMAC_ADDR1, | |
| configMAC_ADDR2, | |
| configMAC_ADDR3, | |
| configMAC_ADDR4, | |
| configMAC_ADDR5 | |
| }; /*XXX Fix me */ | |
| R_ETHER_PinSet_CHANNEL_0(); | |
| R_ETHER_Initial(); | |
| callback_ether_regist(); | |
| param.channel = ETHER_CHANNEL_0; | |
| eth_ret = R_ETHER_Control( CONTROL_POWER_ON, param ); /* PHY mode settings, module stop cancellation */ | |
| if( ETHER_SUCCESS != eth_ret ) | |
| { | |
| return pdFALSE; | |
| } | |
| eth_ret = R_ETHER_Open_ZC2( ETHER_CHANNEL_0, myethaddr, ETHER_FLAG_OFF ); | |
| if( ETHER_SUCCESS != eth_ret ) | |
| { | |
| return pdFALSE; | |
| } | |
| return_code = xTaskCreate( prvEMACDeferredInterruptHandlerTask, | |
| "ETHER_RECEIVE_CHECK_TASK", | |
| 512u, | |
| 0, | |
| configMAX_PRIORITIES - 1, | |
| ðer_receive_check_task_handle ); | |
| if( pdFALSE == return_code ) | |
| { | |
| return pdFALSE; | |
| } | |
| return pdTRUE; | |
| } /* End of function InitializeNetwork() */ | |
| /*********************************************************************************************************************** | |
| * Function Name: SendData () | |
| * Description : | |
| * Arguments : pucBuffer, length | |
| * Return Value : 0 success, negative fail | |
| **********************************************************************************************************************/ | |
| static int16_t SendData( uint8_t * pucBuffer, | |
| size_t length ) /*TODO complete stub function */ | |
| { | |
| ether_return_t ret; | |
| uint8_t * pwrite_buffer; | |
| uint16_t write_buf_size; | |
| /* (1) Retrieve the transmit buffer location controlled by the descriptor. */ | |
| ret = R_ETHER_Write_ZC2_GetBuf( ETHER_CHANNEL_0, ( void ** ) &pwrite_buffer, &write_buf_size ); | |
| if( ETHER_SUCCESS == ret ) | |
| { | |
| if( write_buf_size >= length ) | |
| { | |
| memcpy( pwrite_buffer, pucBuffer, length ); | |
| } | |
| if( length < ETHER_BUFSIZE_MIN ) /*under minimum*/ | |
| { | |
| memset( ( pwrite_buffer + length ), 0, ( ETHER_BUFSIZE_MIN - length ) ); /*padding*/ | |
| length = ETHER_BUFSIZE_MIN; /*resize*/ | |
| } | |
| ret = R_ETHER_Write_ZC2_SetBuf( ETHER_CHANNEL_0, ( uint16_t ) length ); | |
| ret = R_ETHER_CheckWrite( ETHER_CHANNEL_0 ); | |
| } | |
| if( ETHER_SUCCESS != ret ) | |
| { | |
| return -5; /* XXX return meaningful value */ | |
| } | |
| else | |
| { | |
| return 0; | |
| } | |
| } /* End of function SendData() */ | |
| /*********************************************************************************************************************** | |
| * Function Name: EINT_Trig_isr | |
| * Description : Standard frame received interrupt handler | |
| * Arguments : ectrl - EDMAC and ETHERC control structure | |
| * Return Value : None | |
| * Note : This callback function is executed when EINT0 interrupt occurred. | |
| ***********************************************************************************************************************/ | |
| void EINT_Trig_isr( void * ectrl ) | |
| { | |
| ether_cb_arg_t * pdecode; | |
| BaseType_t xHigherPriorityTaskWoken = pdFALSE; | |
| pdecode = ( ether_cb_arg_t * ) ectrl; | |
| if( pdecode->status_eesr & 0x00040000 ) /* EDMAC FR (Frame Receive Event) interrupt */ | |
| { | |
| if( xTaskToNotify != NULL ) | |
| { | |
| vTaskNotifyGiveFromISR( ether_receive_check_task_handle, &xHigherPriorityTaskWoken ); | |
| } | |
| /* If xHigherPriorityTaskWoken is now set to pdTRUE then a context switch | |
| * should be performed to ensure the interrupt returns directly to the highest | |
| * priority task. The macro used for this purpose is dependent on the port in | |
| * use and may be called portEND_SWITCHING_ISR(). */ | |
| portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); | |
| /*TODO complete interrupt handler for other events. */ | |
| } | |
| } /* End of function EINT_Trig_isr() */ | |
| static void clear_all_ether_rx_discriptors( uint32_t event ) | |
| { | |
| int32_t xBytesReceived; | |
| uint8_t * buffer_pointer; | |
| /* Avoid compiler warning about unreferenced parameter. */ | |
| ( void ) event; | |
| while( 1 ) | |
| { | |
| /* See how much data was received. */ | |
| xBytesReceived = R_ETHER_Read_ZC2( ETHER_CHANNEL_0, ( void ** ) &buffer_pointer ); | |
| if( 0 > xBytesReceived ) | |
| { | |
| /* This is an error. Ignored. */ | |
| } | |
| else if( 0 < xBytesReceived ) | |
| { | |
| R_ETHER_Read_ZC2_BufRelease( ETHER_CHANNEL_0 ); | |
| iptraceETHERNET_RX_EVENT_LOST(); | |
| } | |
| else | |
| { | |
| break; | |
| } | |
| } | |
| } | |
| /*********************************************************************************************************************** | |
| * End of file "NetworkInterface.c" | |
| **********************************************************************************************************************/ |