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November 23, 2023 06:34
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FreeRTOS-Plus tcp driver for TMS320F2838x
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/** | |
* @file: NetworkInterface.c | |
* @author: Adrien Cardinale <adrien.cardinale@heig-vd.ch> | |
* @date: Nov 23, 2023 | |
* @copyright: | |
* | |
* Permission is hereby granted, free of charge, to any person obtaining a copy of | |
* this software and associated documentation files (the "Software"), to deal in | |
* the Software without restriction, including without limitation the rights to | |
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of | |
* the Software, and to permit persons to whom the Software is furnished to do so, | |
* subject to the following conditions: | |
* | |
* The above copyright notice and this permission notice shall be included in all | |
* copies or substantial portions of the Software. | |
* | |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | |
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | |
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
* | |
* @brief:Network Interface driver for the Texas Instruments f28388d. | |
*/ | |
#include <stdint.h> | |
#include <stdio.h> | |
#include <stdbool.h> | |
#include <stdlib.h> | |
#include "inc/hw_ints.h" | |
#include "inc/hw_emac.h" | |
#include "inc/hw_memmap.h" | |
#include "inc/hw_nvic.h" | |
#include "driverlib_cm.h" | |
#include "FreeRTOS.h" | |
#include "task.h" | |
#include "queue.h" | |
#include "FreeRTOS_IP.h" | |
#include "FreeRTOS_Sockets.h" | |
#include "FreeRTOS_IP_Private.h" | |
#include "FreeRTOS_DNS.h" | |
#include "FreeRTOS_ARP.h" | |
#include "FreeRTOS_Routing.h" | |
#include "NetworkBufferManagement.h" | |
#include "NetworkInterface.h" | |
#define ETHERNET_NO_OF_RX_PACKETS 2U | |
#define ETHERNET_MAX_PACKET_LENGTH 1538U | |
#define NUM_PACKET_DESC_RX_APPLICATION 8 | |
#define EMAC_IF_RX_EVENT 1UL | |
#define EMAC_IF_TX_EVENT 2UL | |
#define EMAC_IF_ERR_EVENT 4UL | |
#define EMAC_IF_ALL_EVENT ( EMAC_IF_RX_EVENT | EMAC_IF_TX_EVENT | EMAC_IF_ERR_EVENT ) | |
BaseType_t pyhLinkStatus = pdFALSE; | |
TaskHandle_t xEMACTaskHandle = NULL; | |
Ethernet_Handle emac_handle; | |
Ethernet_InitConfig *pInitCfg; | |
size_t receivedDataLength; | |
static NetworkInterface_t* pxMyInterface = NULL; | |
uint32_t genericISRCustomcount = 0; | |
uint32_t genericISRCustomRBUcount = 0; | |
uint32_t genericISRCustomROVcount = 0; | |
uint32_t genericISRCustomRIcount = 0; | |
extern Ethernet_Device Ethernet_device_struct; | |
uint8_t Ethernet_rxBuffer[ETHERNET_NO_OF_RX_PACKETS * | |
ETHERNET_MAX_PACKET_LENGTH]; | |
extern uint32_t Ethernet_rxInterruptCount; | |
static void prvEMACDeferredInterruptHandlerTask( void *pvParameters ); | |
static BaseType_t prvf28388d_NetworkInterfaceInitialise(NetworkInterface_t* pxInterface); | |
static BaseType_t prvf28388d_NetworkInterfaceOutput(NetworkInterface_t* pxInterface, NetworkBufferDescriptor_t* const pxDescriptor, BaseType_t xReleaseAfterSend); | |
NetworkInterface_t* pxf28388d_FillInterfaceDescriptor( BaseType_t xEMACIndex, NetworkInterface_t* pxInterface); | |
static BaseType_t prvf28388d_GetPhyLinkStatus(NetworkInterface_t* pxInterface); | |
#if (ipconfigIPv4_BACKWARD_COMPATIBLE == 1) | |
NetworkInterface_t* pxFillInterfaceDescriptor(BaseType_t xEMACIndex, NetworkInterface_t* pxInterface){ | |
return pxf28388d_FillInterfaceDescriptor(xEMACIndex, pxInterface); | |
} | |
#endif | |
NetworkInterface_t* pxf28388d_FillInterfaceDescriptor( BaseType_t xEMACIndex, NetworkInterface_t* pxInterface){ | |
pxInterface->pcName ="ethernet"; | |
pxInterface->pvArgument = (void*)xEMACIndex; | |
pxInterface->pfInitialise = prvf28388d_NetworkInterfaceInitialise; | |
pxInterface->pfOutput = prvf28388d_NetworkInterfaceOutput; | |
pxInterface->pfGetPhyLinkStatus = NULL; | |
FreeRTOS_AddNetworkInterface(pxInterface); | |
return pxInterface; | |
} | |
static BaseType_t prvf28388d_GetPhyLinkStatus(NetworkInterface_t* pxInterface){ | |
return pyhLinkStatus; | |
} | |
Ethernet_Pkt_Desc *Ethernet_receivePacketCallbackCustom(Ethernet_Handle handleApplication, Ethernet_Pkt_Desc *pPktDesc){ | |
BaseType_t higher_priority_task_woken = pdFALSE; | |
Ethernet_rxInterruptCount++; | |
vTaskNotifyGiveFromISR( xEMACTaskHandle, &higher_priority_task_woken); | |
portYIELD_FROM_ISR( higher_priority_task_woken ); receivedDataLength = pPktDesc->validLength; | |
return Ethernet_getPacketBuffer(); | |
} | |
static BaseType_t prvf28388d_NetworkInterfaceInitialise(NetworkInterface_t* pxInterface){ | |
BaseType_t xReturn; | |
if(xEMACTaskHandle == NULL){ | |
xTaskCreate(prvEMACDeferredInterruptHandlerTask, "EMACInt", configMINIMAL_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, &xEMACTaskHandle); | |
configASSERT(xEMACTaskHandle); | |
pxMyInterface = pxInterface; | |
} | |
Ethernet_InitInterfaceConfig initInterfaceConfig; | |
uint32_t macLower; | |
uint32_t macHigher; | |
uint8_t *temp; | |
initInterfaceConfig.ssbase = EMAC_SS_BASE; | |
initInterfaceConfig.enet_base = EMAC_BASE; | |
initInterfaceConfig.phyMode = ETHERNET_SS_PHY_INTF_SEL_MII; | |
// | |
// Assign SoC specific functions for Enabling,Disabling interrupts | |
// and for enabling the Peripheral at system level | |
// | |
initInterfaceConfig.ptrPlatformInterruptDisable = | |
&Platform_disableInterrupt; | |
initInterfaceConfig.ptrPlatformInterruptEnable = | |
&Platform_enableInterrupt; | |
initInterfaceConfig.ptrPlatformPeripheralEnable = | |
&Platform_enablePeripheral; | |
initInterfaceConfig.ptrPlatformPeripheralReset = | |
&Platform_resetPeripheral; | |
// | |
// Assign the peripheral number at the SoC | |
// | |
initInterfaceConfig.peripheralNum = SYSCTL_PERIPH_CLK_ENET; | |
// | |
// Assign the default SoC specific interrupt numbers of Ethernet interrupts | |
// | |
initInterfaceConfig.interruptNum[0] = INT_EMAC; | |
initInterfaceConfig.interruptNum[1] = INT_EMAC_TX0; | |
initInterfaceConfig.interruptNum[2] = INT_EMAC_TX1; | |
initInterfaceConfig.interruptNum[3] = INT_EMAC_RX0; | |
initInterfaceConfig.interruptNum[4] = INT_EMAC_RX1; | |
pInitCfg = Ethernet_initInterface(initInterfaceConfig); | |
Ethernet_getInitConfig(pInitCfg); | |
pInitCfg->dmaMode.InterruptMode = ETHERNET_DMA_MODE_INTM_MODE2; | |
// | |
// Assign the callbacks for Getting packet buffer when needed | |
// Releasing the TxPacketBuffer on Transmit interrupt callbacks | |
// Receive packet callback on Receive packet completion interrupt | |
// | |
pInitCfg->pfcbRxPacket = &Ethernet_receivePacketCallbackCustom; | |
pInitCfg->pfcbGetPacket = &Ethernet_getPacketBuffer; | |
pInitCfg->pfcbFreePacket = &Ethernet_releaseTxPacketBuffer; | |
// | |
//Assign the Buffer to be used by the Low level driver for receiving | |
//Packets. This should be accessible by the Ethernet DMA | |
// | |
pInitCfg->rxBuffer = Ethernet_rxBuffer; | |
// | |
// The Application handle is not used by this application | |
// Hence using a dummy value of 1 | |
// | |
Ethernet_getHandle((Ethernet_Handle)1, pInitCfg , &emac_handle); | |
// | |
//Do global Interrupt Enable | |
// | |
(void)Interrupt_enableInProcessor(); | |
// | |
//Assign default ISRs | |
// | |
Interrupt_registerHandler(INT_EMAC_TX0, Ethernet_transmitISR); | |
Interrupt_registerHandler(INT_EMAC_RX0, Ethernet_receiveISR); | |
// Interrupt_registerHandler(INT_EMAC, Ethernet_genericISR); | |
// | |
//Change the priority of the interrupt handlers | |
// | |
Interrupt_setPriority(INT_EMAC_TX0, 15); | |
Interrupt_setPriority(INT_EMAC_RX0, 15); | |
// Interrupt_setPriority(INT_EMAC, 15); | |
// | |
//Enable the default interrupt handlers | |
// | |
Interrupt_enable(INT_EMAC_TX0); | |
Interrupt_enable(INT_EMAC_RX0); | |
// Interrupt_enable(INT_EMAC); | |
if(pInitCfg == NULL){ | |
xReturn = pdFAIL; | |
}else{ | |
//TODO: Set the MAC address by FreeRTOS | |
Ethernet_setMACAddr(EMAC_BASE, 0, 0X0000002B, 0X00F263A8, ETHERNET_CHANNEL_0); | |
xReturn = pdPASS; | |
} | |
pyhLinkStatus = pdTRUE; | |
return xReturn; | |
} | |
static BaseType_t prvf28388d_NetworkInterfaceOutput(NetworkInterface_t* pxInterface, NetworkBufferDescriptor_t* const pxDescriptor, BaseType_t xReleaseAfterSend){ | |
Ethernet_Pkt_Desc pktDesc; | |
//creat temp buffer with max ethernet frame size | |
uint8_t temp[ETHERNET_MAX_PACKET_LENGTH]; | |
//copy first 6 bytes of pucEthernetBuffer to temp buffer | |
memcpy(temp, pxDescriptor->pucEthernetBuffer, 6); | |
//copy last bytes of pucEthernetBuffer to temp buffer | |
memcpy(temp + 6, pxDescriptor->pucEthernetBuffer + 12, pxDescriptor->xDataLength - 6); | |
pktDesc.bufferLength = pxDescriptor->xDataLength; | |
pktDesc.dataOffset = 0; | |
pktDesc.dataBuffer = temp; | |
pktDesc.nextPacketDesc = 0; | |
// pktDesc.flags = ETHERNET_PKT_FLAG_SOP |ETHERNET_PKT_FLAG_EOP|ETHERNET_PKT_FLAG_SA_INS; | |
pktDesc.flags = ETHERNET_PKT_FLAG_SOP | ETHERNET_PKT_FLAG_EOP | ETHERNET_PKT_FLAG_SA_INS; | |
pktDesc.pktChannel = ETHERNET_DMA_CHANNEL_NUM_0; | |
pktDesc.pktLength = pxDescriptor->xDataLength; | |
pktDesc.validLength = pxDescriptor->xDataLength; | |
pktDesc.numPktFrags = 1; | |
Ethernet_sendPacket(emac_handle, &pktDesc); | |
SysCtl_delay(5000); | |
iptraceNETWORK_INTERFACE_TRANSMIT(); | |
pktDesc.dataBuffer = NULL; | |
if(xReleaseAfterSend != pdFALSE){ | |
pxDescriptor->pucEthernetBuffer = NULL; | |
vReleaseNetworkBufferAndDescriptor(pxDescriptor); | |
} | |
return pdTRUE; | |
} | |
static void prvEMACDeferredInterruptHandlerTask( void *pvParameters ) | |
{ | |
NetworkBufferDescriptor_t *pxBufferDescriptor; | |
size_t xBytesReceived; | |
IPStackEvent_t xRxEvent; | |
uint32_t ulISREvents = 0U; | |
for( ;; ) | |
{ | |
ulTaskNotifyTake( pdFALSE, portMAX_DELAY ); | |
// xTaskNotifyWait( 0U, /* ulBitsToClearOnEntry */ | |
// EMAC_IF_ALL_EVENT, /* ulBitsToClearOnExit */ | |
// &( ulISREvents ), /* pulNotificationValue */ | |
// portMAX_DELAY ); | |
xBytesReceived = receivedDataLength; | |
if(xBytesReceived > 0){ | |
pxBufferDescriptor = pxGetNetworkBufferWithDescriptor( xBytesReceived, 0 ); | |
if(pxBufferDescriptor != NULL){ | |
memcpy(pxBufferDescriptor->pucEthernetBuffer, Ethernet_rxBuffer, xBytesReceived); | |
// pxBufferDescriptor->pucEthernetBuffer = Ethernet_rxBuffer; | |
pxBufferDescriptor->xDataLength = xBytesReceived; | |
if(eConsiderFrameForProcessing(pxBufferDescriptor->pucEthernetBuffer) == eProcessBuffer){ | |
pxBufferDescriptor->pxEndPoint = FreeRTOS_MatchingEndpoint(pxMyInterface, pxBufferDescriptor->pucEthernetBuffer); | |
if(pxBufferDescriptor->pxEndPoint != NULL){ | |
xRxEvent.eEventType = eNetworkRxEvent; | |
xRxEvent.pvData = (void*)pxBufferDescriptor; | |
if(xSendEventStructToIPTask(&xRxEvent, 0) == pdFALSE){ | |
vReleaseNetworkBufferAndDescriptor(pxBufferDescriptor); | |
iptraceETHERNET_RX_EVENT_LOST(); | |
}else{ | |
iptraceNETWORK_INTERFACE_RECEIVE(); | |
} | |
}else{ | |
vReleaseNetworkBufferAndDescriptor( pxBufferDescriptor ); | |
} | |
}else{ | |
vReleaseNetworkBufferAndDescriptor( pxBufferDescriptor ); | |
} | |
}else{ | |
iptraceETHERNET_RX_EVENT_LOST(); | |
} | |
} | |
} | |
} |
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