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FreeRTOS-Plus-TCP/source/portable/NetworkInterface/pic32mzef/NetworkInterface_eth.c
Monika Singh dbd2b001b1 Update portable layer for backward compatibility (#755) 
* Rename FreeRTOS_IPStart to FreeRTOS_IPInit_Multi

* Update backward compatability for portable layer
2023-03-07 22:02:55 +05:30

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/*******************************************************************************
* Network Interface file
*
* Summary:
* Network Interface file for FreeRTOS-Plus-TCP stack
*
* Description:
* - Interfaces PIC32 to the FreeRTOS TCP/IP stack
*******************************************************************************/
/*******************************************************************************
* File Name: pic32_NetworkInterface.c
* Copyright 2017 Microchip Technology Incorporated and its subsidiaries.
*
* 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
*******************************************************************************/
#include <sys/kmem.h>
#include "FreeRTOS.h"
#include "semphr.h"
#include "event_groups.h"
#include "FreeRTOS_IP.h"
#include "FreeRTOS_IP_Private.h"
#include "FreeRTOS_Routing.h"
#include "NetworkInterface.h"
#include "NetworkBufferManagement.h"
#include "NetworkInterface.h"
#include "NetworkConfig.h"
#include "peripheral/eth/plib_eth.h"
#include "system_config.h"
#include "system/console/sys_console.h"
#include "system/debug/sys_debug.h"
#include "system/command/sys_command.h"
#include "driver/ethmac/drv_ethmac.h"
#include "driver/miim/drv_miim.h"
#include "tcpip/tcpip.h"
#include "tcpip/src/tcpip_private.h"
#include "tcpip/src/link_list.h"
#ifdef PIC32_USE_ETHERNET
/* local definitions and data */
/* debug messages */
#if ( PIC32_MAC_DEBUG_MESSAGES != 0 )
#define PIC32_MAC_DbgPrint( format, ... ) SYS_CONSOLE_PRINT( format, ## __VA_ARGS__ )
#else
#define PIC32_MAC_DbgPrint( format, ... )
#endif /* (PIC32_MAC_DEBUG_MESSAGES != 0) */
typedef enum
{
PIC32_MAC_EVENT_INIT_NONE = 0x000, /* no event/invalid */
PIC32_MAC_EVENT_INIT_DONE = 0x001, /* initialization done event */
PIC32_MAC_EVENT_TIMEOUT = 0x002, /* periodic timeout event */
PIC32_MAC_EVENT_IF_PENDING = 0x004, /* an interface event signal: RX, TX, errors. etc. */
} PIC32_MAC_EVENT_TYPE;
typedef enum
{
eMACInit, /* Must initialise MAC. */
eMACPass, /* Initialisation was successful. */
eMACFailed, /* Initialisation failed. */
} eMAC_INIT_STATUS_TYPE;
static TCPIP_STACK_HEAP_HANDLE macHeapHandle;
static const TCPIP_MAC_OBJECT * macObject; /* the one and only MAC object; */
static SYS_MODULE_OBJ macObjHandle; /* the MAC object instance, obtained at initialization */
static TCPIP_MAC_HANDLE macCliHandle; /* client handle */
static volatile SYS_STATUS macObjStatus; /* current MAC status */
static TaskHandle_t macTaskHandle;
static TimerHandle_t macTmrHandle;
static bool macLinkStatus; /* true if link is ON */
static eMAC_INIT_STATUS_TYPE xMacInitStatus = eMACInit;
/* local prototypes */
static bool StartInitMac( NetworkInterface_t * pxInterface );
static void StartInitCleanup( void );
static void SetMacCtrl( TCPIP_MAC_MODULE_CTRL * pMacCtrl );
static bool MacSyncFunction( void * synchHandle,
TCPIP_MAC_SYNCH_REQUEST req );
/* the PIC32 MAC task function */
static void MacHandlerTask( void * params );
/* MAC interrupt event function */
static void MAC_EventFunction( TCPIP_MAC_EVENT event,
const void * eventParam );
/* timer callback for link maintenance, etc; */
static void MacTmrCallback( TimerHandle_t xTimer );
/* MAC RX packets functions */
static void MacRxPackets( void );
static void MacProcessRxPacket( TCPIP_MAC_PACKET * pRxPkt );
static NetworkInterface_t * pxMyInterface;
static BaseType_t xPIC32_Eth_NetworkInterfaceInitialise( NetworkInterface_t * pxInterface );
static BaseType_t xPIC32_Eth_NetworkInterfaceOutput( NetworkInterface_t * pxInterface,
NetworkBufferDescriptor_t * const pxDescriptor,
BaseType_t xReleaseAfterSend );
static BaseType_t xPIC32_Eth_GetPhyLinkStatus( NetworkInterface_t * pxInterface );
NetworkInterface_t * pxPIC32_Eth_FillInterfaceDescriptor( BaseType_t xEMACIndex,
NetworkInterface_t * pxInterface );
/* memory allocation mapping to FreeRTOS */
static void * _malloc( size_t nBytes )
{
return pvPortMalloc( nBytes );
}
/*-----------------------------------------------------------*/
static void * _calloc( size_t nElems,
size_t elemSize )
{
size_t nBytes = nElems * elemSize;
void * ptr = pvPortMalloc( nBytes );
if( ptr != 0 )
{
memset( ptr, 0, nBytes );
}
return ptr;
}
/*-----------------------------------------------------------*/
static void _free( void * pBuff )
{
vPortFree( pBuff );
}
/* extern references */
/* */
/* use the configuration data from the system_init.c */
extern const TCPIP_NETWORK_CONFIG TCPIP_HOSTS_CONFIGURATION[];
/* BufferAllocation_2.c:: packet allocation function */
extern TCPIP_MAC_PACKET * PIC32_MacPacketAllocate( uint16_t pktLen,
uint16_t segLoadLen,
TCPIP_MAC_PACKET_FLAGS flags );
extern void PIC32_MacAssociate( TCPIP_MAC_PACKET * pRxPkt,
NetworkBufferDescriptor_t * pxBufferDescriptor,
size_t pktLength );
extern void PIC32_MacPacketOrphan( TCPIP_MAC_PACKET * pPkt );
/* cannot use the system_init.c::tcpipHeapConfig because FreeRTOS does not have a calloc function! */
/* we build it here! */
/* make sure we're running with external heap! Redirect to FreeRTOS. */
#if !defined( TCPIP_STACK_USE_EXTERNAL_HEAP ) || defined( TCPIP_STACK_USE_INTERNAL_HEAP ) || defined( TCPIP_STACK_USE_INTERNAL_HEAP_POOL )
#error "TCPIP_STACK_USE_EXTERNAL_HEAP should be defined for this project!"
#endif
static const TCPIP_STACK_HEAP_EXTERNAL_CONFIG tcpipHeapConfig =
{
.heapType = TCPIP_STACK_HEAP_TYPE_EXTERNAL_HEAP,
.heapFlags = TCPIP_STACK_HEAP_FLAG_ALLOC_UNCACHED | TCPIP_STACK_HEAP_FLAG_NO_MTHREAD_SYNC,
.heapUsage = TCPIP_STACK_HEAP_USE_DEFAULT,
.malloc_fnc = _malloc,
.calloc_fnc = _calloc,
.free_fnc = _free,
};
#if ( PIC32_MAC_DEBUG_COMMANDS != 0 )
static int _Command_MacInfo( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv );
static int _Command_NetInfo( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv );
static int _Command_Version( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv );
static const SYS_CMD_DESCRIPTOR macCmdTbl[] =
{
{ "macinfo", _Command_MacInfo, ": Check MAC statistics" },
{ "netinfo", _Command_NetInfo, ": Net info" },
{ "version", _Command_Version, ": Version info" },
};
#endif /* (PIC32_MAC_DEBUG_COMMANDS != 0) */
#if defined( ipconfigIPv4_BACKWARD_COMPATIBLE ) && ( ipconfigIPv4_BACKWARD_COMPATIBLE == 1 )
/* Do not call the following function directly. It is there for downward compatibility.
* The function FreeRTOS_IPInit() will call it to initialice the interface and end-point
* objects. See the description in FreeRTOS_Routing.h. */
NetworkInterface_t * pxFillInterfaceDescriptor( BaseType_t xEMACIndex,
NetworkInterface_t * pxInterface )
{
pxPIC32_Eth_FillInterfaceDescriptor( xEMACIndex, pxInterface );
}
#endif
/*-----------------------------------------------------------*/
NetworkInterface_t * pxPIC32_Eth_FillInterfaceDescriptor( BaseType_t xEMACIndex,
NetworkInterface_t * pxInterface )
{
static char pcName[ 8 ];
/* This function pxPIC32_Eth_FillInterfaceDescriptor() adds a network-interface.
* Make sure that the object pointed to by 'pxInterface'
* is declared static or global, and that it will remain to exist. */
snprintf( pcName, sizeof( pcName ), "eth%ld", xEMACIndex );
memset( pxInterface, '\0', sizeof( *pxInterface ) );
pxInterface->pcName = pcName; /* Just for logging, debugging. */
pxInterface->pvArgument = ( void * ) xEMACIndex; /* Has only meaning for the driver functions. */
pxInterface->pfInitialise = xPIC32_Eth_NetworkInterfaceInitialise;
pxInterface->pfOutput = xPIC32_Eth_NetworkInterfaceOutput;
pxInterface->pfGetPhyLinkStatus = xPIC32_Eth_GetPhyLinkStatus;
FreeRTOS_AddNetworkInterface( pxInterface );
pxMyInterface = pxInterface;
return pxInterface;
}
/*-----------------------------------------------------------*/
/* FreeRTOS implementation functions */
static BaseType_t xPIC32_Eth_NetworkInterfaceInitialise( NetworkInterface_t * pxInterface )
{
BaseType_t xResult;
if( xMacInitStatus == eMACInit )
{
/* This is the first time this function is called. */
if( StartInitMac() != false )
{
/* Indicate that the MAC initialisation succeeded. */
xMacInitStatus = eMACPass;
}
else
{
xMacInitStatus = eMACFailed;
}
}
if( xMacInitStatus == eMACPass )
{
xResult = xPIC32_Eth_GetPhyLinkStatus( pxMyInterface );
}
else
{
xResult = pdFAIL;
}
PIC32_MAC_DbgPrint( "xNetworkInterfaceInitialise: %d %d\r\n", ( int ) xMacInitStatus, ( int ) xResult );
return xResult;
}
/*-----------------------------------------------------------*/
/*-----------------------------------------------------------*/
static BaseType_t xPIC32_Eth_NetworkInterfaceOutput( NetworkInterface_t * pxInterface,
NetworkBufferDescriptor_t * const pxDescriptor,
BaseType_t xReleaseAfterSend )
{
BaseType_t xEMACIndex = ( BaseType_t ) pxInterface->pvArgument;
TCPIP_MAC_RES macRes;
TCPIP_MAC_PACKET * pTxPkt;
BaseType_t retRes = pdFALSE;
if( ( pxDescriptor != 0 ) && ( pxDescriptor->pucEthernetBuffer != 0 ) && ( pxDescriptor->xDataLength != 0 ) )
{
TCPIP_MAC_PACKET ** ppkt = ( TCPIP_MAC_PACKET ** ) ( pxDescriptor->pucEthernetBuffer - PIC32_BUFFER_PKT_PTR_OSSET );
configASSERT( ( ( uint32_t ) ppkt & ( sizeof( uint32_t ) - 1 ) ) == 0 );
pTxPkt = *ppkt;
configASSERT( pTxPkt != 0 );
/* prepare the packet for transmission */
/* set the correct data length: */
configASSERT( pTxPkt->pDSeg->segSize >= pTxPkt->pDSeg->segLen );
pTxPkt->pDSeg->segLen = pxDescriptor->xDataLength;
pTxPkt->next = 0; /* unlink it */
macRes = ( macObject->TCPIP_MAC_PacketTx )( macCliHandle, pTxPkt );
if( macRes >= 0 )
{
retRes = pdTRUE;
pxDescriptor->pucEthernetBuffer = 0; /* it will be released by the MAC driver once it's transmitted */
iptraceNETWORK_INTERFACE_TRANSMIT();
}
/* else same error occurred; this normally should not happen! But the buffer is left in there so it should be freed! */
/* The buffer has been sent so can be released. */
if( xReleaseAfterSend != pdFALSE )
{
vReleaseNetworkBufferAndDescriptor( pxDescriptor );
}
}
return retRes;
}
/************************************* Section: helper functions ************************************************** */
/* */
void PIC32_GetMACAddress( uint8_t macAdd[ 6 ] )
{
#if defined( __PIC32MZ__ ) || defined( __PIC32MX__ )
PLIB_ETH_MACGetAddress( ETH_ID_0, macAdd );
#else
#error "MAC Address: not supported architecture!"
#endif
}
/*-----------------------------------------------------------*/
const void * const PIC32_GetMacConfigData( void )
{
#if defined( __PIC32MZ__ ) || defined( __PIC32MX__ )
extern const TCPIP_MODULE_MAC_PIC32INT_CONFIG tcpipMACPIC32INTInitData;
return &tcpipMACPIC32INTInitData;
#else
#error "MAC Address: not supported architecture!"
#endif
}
/************************************* Section: worker code ************************************************** */
/* */
static bool StartInitMac( NetworkInterface_t * pxInterface )
{
TCPIP_MAC_MODULE_CTRL macCtrl;
SYS_MODULE_INIT moduleInit;
EventBits_t evBits;
NetworkEndPoint_t * pxEndPoint;
/* perform some initialization of all variables so that we can cleanup what failed */
/* if something failed, the routine will be called again and again by FreeRTOS! */
macHeapHandle = 0;
macObjHandle = 0;
macCliHandle = 0;
macTmrHandle = 0;
macTaskHandle = 0;
macObject = TCPIP_HOSTS_CONFIGURATION[ 0 ].pMacObject; /* the MAC object we use */
macObjStatus = SYS_STATUS_UNINITIALIZED;
macLinkStatus = false;
int netUpFail = 0;
while( true )
{
/* start the allocator */
macHeapHandle = TCPIP_HEAP_Create( ( const TCPIP_STACK_HEAP_CONFIG * ) &tcpipHeapConfig, 0 );
if( macHeapHandle == 0 )
{
netUpFail = 1;
break;
}
if( TCPIP_PKT_Initialize( macHeapHandle, 0, 0 ) == false )
{
netUpFail = 2;
break;
}
moduleInit.sys.powerState = SYS_MODULE_POWER_RUN_FULL;
/* Initialize the MAC. MAC address is defined to 0x000000000000 in
* FreeRTOSConfig.h and therefore it will be initialized to the
* factory programmed MAC address. */
SetMacCtrl( &macCtrl );
/* Set the mac address in the end-points. */
for( pxEndPoint = FreeRTOS_FirstEndPoint( pxInterface );
pxEndPoint != NULL;
pxEndPoint = FreeRTOS_NextEndPoint( pxInterface, pxEndPoint ) )
{
/* This driver, for now, will have the same MAC-address for all its end-points. */
memcpy( pxEndPoint->xMACAddress.ucBytes, macCtrl.ifPhyAddress.v, ipMAC_ADDRESS_LENGTH_BYTES );
}
TCPIP_MAC_INIT macInit =
{
.moduleInit = { moduleInit.value },
.macControl = &macCtrl,
.moduleData = PIC32_GetMacConfigData(),
};
macObjHandle = ( macObject->TCPIP_MAC_Initialize )( TCPIP_MODULE_MAC_PIC32INT, &macInit.moduleInit );
if( macObjHandle == SYS_MODULE_OBJ_INVALID )
{
macObjHandle = 0;
netUpFail = 4;
break;
}
/* open the MAC */
macCliHandle = ( macObject->TCPIP_MAC_Open )( TCPIP_MODULE_MAC_PIC32INT, DRV_IO_INTENT_READWRITE );
if( macCliHandle == DRV_HANDLE_INVALID )
{
macCliHandle = 0;
netUpFail = 5;
break;
}
if( !( macObject->TCPIP_MAC_EventMaskSet )( macCliHandle, ( TCPIP_MAC_EV_RX_DONE | TCPIP_MAC_EV_TX_DONE | TCPIP_MAC_EV_RXTX_ERRORS ), true ) )
{
netUpFail = 6;
break;
}
/* completed the MAC initialization */
/* continue the initialization */
macTmrHandle = xTimerCreate( PIC32_MAC_TIMER_NAME, PIC32_MAC_TIMER_PERIOD, pdTRUE, 0, MacTmrCallback );
if( ( macTmrHandle == 0 ) || ( xTimerStart( macTmrHandle, 0 ) != pdPASS ) )
{
netUpFail = 8;
break;
}
/* spawn the PIC32 MAC task function */
/* and wait for its event signal */
macObjStatus = SYS_STATUS_BUSY;
if( xTaskCreate( MacHandlerTask, PIC32_MAC_TASK_NAME, PIC32_MAC_TASK_STACK_SIZE, xTaskGetCurrentTaskHandle(), PIC32_MAC_TASK_PRI, &macTaskHandle ) != pdPASS )
{ /* failed */
netUpFail = 9;
break;
}
xTaskNotifyWait( PIC32_MAC_EVENT_INIT_DONE, PIC32_MAC_EVENT_INIT_DONE, &evBits, PIC32_MAC_INIT_TIMEOUT );
if( ( evBits & PIC32_MAC_EVENT_INIT_DONE ) == 0 )
{ /* timed out */
netUpFail = 10;
break;
}
if( macObjStatus != SYS_STATUS_READY )
{ /* failed somehow ??? */
netUpFail = 11;
break;
}
netUpFail = 0;
break;
}
if( netUpFail == 0 )
{
PIC32_MAC_DbgPrint( " MAC Init success!\r\n" );
#if ( PIC32_MAC_DEBUG_COMMANDS != 0 )
/* create command group */
if( !SYS_CMD_ADDGRP( macCmdTbl, sizeof( macCmdTbl ) / sizeof( *macCmdTbl ), "mac", ": mac commands" ) )
{
PIC32_MAC_DbgPrint( "Failed to create MAC Commands\r\n" );
}
#endif /* (PIC32_MAC_DEBUG_COMMANDS != 0) */
return true;
}
else
{
StartInitCleanup();
PIC32_MAC_DbgPrint( "MAC Init failed: %d!\r\n", netUpFail );
return false;
}
}
/*-----------------------------------------------------------*/
static void StartInitCleanup( void )
{
if( macHeapHandle != 0 )
{
TCPIP_HEAP_Delete( macHeapHandle );
macHeapHandle = 0;
}
if( macObjHandle != 0 )
{
( macObject->TCPIP_MAC_Deinitialize )( macObjHandle );
macObjHandle = 0;
}
if( macTmrHandle != 0 )
{
xTimerDelete( macTmrHandle, portMAX_DELAY );
macTmrHandle = 0;
}
if( macTaskHandle != 0 )
{
vTaskDelete( macTaskHandle );
macTaskHandle = 0;
}
}
/*-----------------------------------------------------------*/
static void SetMacCtrl( TCPIP_MAC_MODULE_CTRL * pMacCtrl )
{
TCPIP_MAC_ADDR macAdd;
uint8_t unsetMACAddr[ 6 ] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; /* not set MAC address */
pMacCtrl->nIfs = 1;
pMacCtrl->mallocF = TCPIP_HEAP_MallocOutline;
pMacCtrl->callocF = TCPIP_HEAP_CallocOutline;
pMacCtrl->freeF = TCPIP_HEAP_FreeOutline;
pMacCtrl->memH = macHeapHandle;
pMacCtrl->pktAllocF = PIC32_MacPacketAllocate;
pMacCtrl->pktFreeF = ( TCPIP_MAC_PKT_FreeF ) _TCPIP_PKT_FREE_FNC;
pMacCtrl->pktAckF = ( TCPIP_MAC_PKT_AckF ) _TCPIP_PKT_ACK_FNC;
pMacCtrl->synchF = MacSyncFunction;
pMacCtrl->eventF = MAC_EventFunction;
pMacCtrl->eventParam = 0;
pMacCtrl->moduleId = TCPIP_MODULE_MAC_PIC32INT;
pMacCtrl->netIx = 0;
pMacCtrl->macAction = TCPIP_MAC_ACTION_INIT;
pMacCtrl->powerMode = TCPIP_MAC_POWER_FULL;
macAdd.v[ 0 ] = configMAC_ADDR0;
macAdd.v[ 1 ] = configMAC_ADDR1;
macAdd.v[ 2 ] = configMAC_ADDR2;
macAdd.v[ 3 ] = configMAC_ADDR3;
macAdd.v[ 4 ] = configMAC_ADDR4;
macAdd.v[ 5 ] = configMAC_ADDR5;
if( memcmp( macAdd.v, unsetMACAddr, sizeof( unsetMACAddr ) ) == 0 )
{ /* if unspecified we use the factory pre-programmed address */
PIC32_GetMACAddress( pMacCtrl->ifPhyAddress.v );
}
else
{ /* use the config suggested one */
memcpy( pMacCtrl->ifPhyAddress.v, macAdd.v, sizeof( macAdd ) );
}
}
/*-----------------------------------------------------------*/
static bool MacSyncFunction( void * synchHandle,
TCPIP_MAC_SYNCH_REQUEST req )
{
switch( req )
{
case TCPIP_MAC_SYNCH_REQUEST_OBJ_CREATE:
vSemaphoreCreateBinary( *( SemaphoreHandle_t * ) synchHandle );
return ( *( SemaphoreHandle_t * ) synchHandle == NULL ) ? false : true;
case TCPIP_MAC_SYNCH_REQUEST_OBJ_DELETE:
vSemaphoreDelete( *( SemaphoreHandle_t * ) synchHandle );
*( SemaphoreHandle_t * ) synchHandle = NULL;
return true;
case TCPIP_MAC_SYNCH_REQUEST_OBJ_LOCK:
return ( xSemaphoreTake( *( SemaphoreHandle_t * ) synchHandle, portMAX_DELAY ) == pdTRUE ) ? true : false;
case TCPIP_MAC_SYNCH_REQUEST_OBJ_UNLOCK:
return ( xSemaphoreGive( *( SemaphoreHandle_t * ) synchHandle ) == pdTRUE ) ? true : false;
case TCPIP_MAC_SYNCH_REQUEST_CRIT_ENTER:
vTaskSuspendAll();
return true;
case TCPIP_MAC_SYNCH_REQUEST_CRIT_LEAVE:
xTaskResumeAll();
return true;
default:
return false;
}
}
/*-----------------------------------------------------------*/
static void MacHandlerTask( void * params )
{
EventBits_t evBits;
/* perform the MAC initialization */
while( macObjStatus == SYS_STATUS_BUSY )
{
/* process the underlying MAC module tasks */
( macObject->TCPIP_MAC_Tasks )( macObjHandle );
SYS_STATUS macStatus = ( macObject->TCPIP_MAC_Status )( macObjHandle );
if( macStatus == SYS_STATUS_BUSY )
{ /* still pending */
vTaskDelay( PIC32_MAC_TASK_INIT_PENDING_DELAY );
}
else
{ /* completed ...somehow */
macObjStatus = macStatus;
xTaskNotify( ( TaskHandle_t ) params, PIC32_MAC_EVENT_INIT_DONE, eSetBits );
if( macStatus != SYS_STATUS_READY )
{ /* failed miserably */
vTaskDelete( 0 );
}
/* done, up and running */
}
}
while( true )
{
xTaskNotifyWait( PIC32_MAC_EVENT_TIMEOUT | PIC32_MAC_EVENT_IF_PENDING, PIC32_MAC_EVENT_TIMEOUT | PIC32_MAC_EVENT_IF_PENDING, &evBits, portMAX_DELAY );
if( ( evBits & PIC32_MAC_EVENT_TIMEOUT ) != 0 )
{ /* timeout occurred... */
( macObject->TCPIP_MAC_Tasks )( macObjHandle );
bool linkCurr = ( macObject->TCPIP_MAC_LinkCheck )( macCliHandle ); /* check link status */
if( macLinkStatus != linkCurr )
{ /* link status changed; some event could ve fired here if needed */
PIC32_MAC_DbgPrint( " MAC link: %s!\r\n", linkCurr ? "ON" : "OFF" );
macLinkStatus = linkCurr;
}
}
if( ( evBits & PIC32_MAC_EVENT_IF_PENDING ) != 0 )
{ /* IF events signal */
TCPIP_MAC_EVENT activeEvents = ( macObject->TCPIP_MAC_EventPendingGet )( macCliHandle );
if( activeEvents != TCPIP_MAC_EV_NONE )
{
/* acknowledge the events */
( macObject->TCPIP_MAC_EventAcknowledge )( macCliHandle, activeEvents );
/* check for RX */
if( ( activeEvents & ( TCPIP_MAC_EV_RX_DONE | TCPIP_MAC_EV_RX_OVFLOW | TCPIP_MAC_EV_RX_BUFNA ) ) != 0 )
{ /* RX packets available */
MacRxPackets();
}
/* call the driver process function; */
/* PIC32 driver requests it through TCPIP_MAC_ParametersGet() which is bypassed here! */
( macObject->TCPIP_MAC_Process )( macCliHandle );
}
}
/* do what you have to do and then wait for another event... */
}
}
/*-----------------------------------------------------------*/
static void MacTmrCallback( TimerHandle_t xTimer )
{
xTaskNotify( macTaskHandle, PIC32_MAC_EVENT_TIMEOUT, eSetBits );
}
/* MAC interrupt event function */
/* MAC signals an event, probably from within ISR */
/* we care just for RX related events */
static void MAC_EventFunction( TCPIP_MAC_EVENT event,
const void * eventParam )
{
BaseType_t xHigherPriorityTaskWoken;
if( ( event & ( TCPIP_MAC_EV_RX_DONE | TCPIP_MAC_EV_TX_DONE | TCPIP_MAC_EV_RXTX_ERRORS ) ) != 0 )
{
xHigherPriorityTaskWoken = pdFALSE;
xTaskNotifyFromISR( macTaskHandle, PIC32_MAC_EVENT_IF_PENDING, eSetBits, &xHigherPriorityTaskWoken );
if( xHigherPriorityTaskWoken )
{
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
}
}
}
/*-----------------------------------------------------------*/
static BaseType_t xPIC32_Eth_GetPhyLinkStatus( NetworkInterface_t * pxInterface )
{
return ( macLinkStatus == true ) ? pdPASS : pdFAIL;
}
/* receive packets from the MAC driver */
static void MacRxPackets( void )
{
TCPIP_MAC_PACKET * pRxPkt;
/* get all the new MAC packets */
while( ( pRxPkt = ( macObject->TCPIP_MAC_PacketRx )( macCliHandle, 0, 0 ) ) != 0 )
{
MacProcessRxPacket( pRxPkt );
}
}
/*-----------------------------------------------------------*/
static void MacProcessRxPacket( TCPIP_MAC_PACKET * pRxPkt )
{
bool pktSuccess, pktLost;
size_t pktLength;
TCPIP_MAC_DATA_SEGMENT * pSeg;
uint8_t * pPktBuff;
NetworkBufferDescriptor_t * pxBufferDescriptor;
IPStackEvent_t xRxEvent;
pxBufferDescriptor = 0;
pktSuccess = pktLost = false;
while( true )
{
pktLength = 0;
int nSegs = 0;
pSeg = pRxPkt->pDSeg;
pPktBuff = pSeg->segLoad;
/* calculate the packet size */
do
{
pktLength += pSeg->segLen;
pSeg = pSeg->next;
nSegs++;
} while( pSeg != 0 );
if( nSegs > 1 )
{ /* no support in FreeRTOS for multi segment packets! */
break;
}
/* sizeof(TCPIP_MAC_ETHERNET_HEADER) is subtracted by the driver */
/* but FreeRTOS needs the whole frame! */
pktLength += sizeof( TCPIP_MAC_ETHERNET_HEADER );
if( eConsiderFrameForProcessing( pPktBuff ) != eProcessBuffer )
{
break;
}
/* get the network descriptor (no data buffer) to hold this packet */
pxBufferDescriptor = pxGetNetworkBufferWithDescriptor( 0, 0 );
if( pxBufferDescriptor == 0 )
{
pktLost = true;
break;
}
PIC32_MacAssociate( pRxPkt, pxBufferDescriptor, pktLength );
pxBufferDescriptor->pxInterface = pxMyInterface;
pxBufferDescriptor->pxEndPoint = FreeRTOS_MatchingEndpoint( pxMyInterface, pxBufferDescriptor->pucEthernetBuffer );
xRxEvent.eEventType = eNetworkRxEvent;
xRxEvent.pvData = ( void * ) pxBufferDescriptor;
/* Send the data to the TCP/IP stack */
if( xSendEventStructToIPTask( &xRxEvent, 0 ) == pdFALSE )
{ /* failed */
pktLost = true;
}
else
{ /* success */
pktSuccess = true;
iptraceNETWORK_INTERFACE_RECEIVE();
}
break;
}
if( !pktSuccess )
{ /* something went wrong; nothing sent to the */
if( pxBufferDescriptor != 0 )
{
pxBufferDescriptor->pucEthernetBuffer = 0;
vReleaseNetworkBufferAndDescriptor( pxBufferDescriptor );
}
if( pktLost )
{
iptraceETHERNET_RX_EVENT_LOST();
}
/* acknowledge the packet to the MAC driver */
if( pRxPkt->ackFunc )
{
( *pRxPkt->ackFunc )( pRxPkt, pRxPkt->ackParam );
}
else
{
PIC32_MacPacketOrphan( pRxPkt );
}
}
}
#if ( PIC32_MAC_DEBUG_COMMANDS != 0 )
/* */
static int _Command_MacInfo( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv )
{
TCPIP_MAC_RES macRes;
TCPIP_MAC_RX_STATISTICS rxStatistics;
TCPIP_MAC_TX_STATISTICS txStatistics;
TCPIP_MAC_STATISTICS_REG_ENTRY regEntries[ 8 ];
TCPIP_MAC_STATISTICS_REG_ENTRY * pRegEntry;
int jx, hwEntries;
char entryName[ sizeof( pRegEntry->registerName ) + 1 ];
const void * cmdIoParam = pCmdIO->cmdIoParam;
if( argc != 1 )
{
( *pCmdIO->pCmdApi->msg )( cmdIoParam, "Usage: macinfo \r\n" );
( *pCmdIO->pCmdApi->msg )( cmdIoParam, "Ex: macinfo \r\n" );
return false;
}
( *pCmdIO->pCmdApi->print )( cmdIoParam, "Interface: %s driver statistics\r\n", macObject->macName );
macRes = ( macObject->TCPIP_MAC_StatisticsGet )( macCliHandle, &rxStatistics, &txStatistics );
if( macRes == TCPIP_MAC_RES_OK )
{
( *pCmdIO->pCmdApi->print )( cmdIoParam, "\tnRxOkPackets: %d, nRxPendBuffers: %d, nRxSchedBuffers: %d, ",
rxStatistics.nRxOkPackets, rxStatistics.nRxPendBuffers, rxStatistics.nRxSchedBuffers );
( *pCmdIO->pCmdApi->print )( cmdIoParam, "nRxErrorPackets: %d, nRxFragmentErrors: %d\r\n", rxStatistics.nRxErrorPackets, rxStatistics.nRxFragmentErrors );
( *pCmdIO->pCmdApi->print )( cmdIoParam, "\tnTxOkPackets: %d, nTxPendBuffers: %d, nTxErrorPackets: %d, nTxQueueFull: %d\r\n",
txStatistics.nTxOkPackets, txStatistics.nTxPendBuffers, txStatistics.nTxErrorPackets, txStatistics.nTxQueueFull );
}
else
{
( *pCmdIO->pCmdApi->msg )( cmdIoParam, "\tnot supported\r\n" );
}
( *pCmdIO->pCmdApi->print )( cmdIoParam, "Interface: %s hardware statistics\r\n", macObject->macName );
macRes = ( macObject->TCPIP_MAC_RegisterStatisticsGet )( macCliHandle, regEntries, sizeof( regEntries ) / sizeof( *regEntries ), &hwEntries );
if( macRes == TCPIP_MAC_RES_OK )
{
entryName[ sizeof( entryName ) - 1 ] = 0;
for( jx = 0, pRegEntry = regEntries; jx < hwEntries && jx < sizeof( regEntries ) / sizeof( *regEntries ); jx++, pRegEntry++ )
{
strncpy( entryName, pRegEntry->registerName, sizeof( entryName ) - 1 );
( *pCmdIO->pCmdApi->print )( cmdIoParam, "\t%s: 0x%8x\r\n", entryName, pRegEntry->registerValue );
}
}
else
{
( *pCmdIO->pCmdApi->msg )( cmdIoParam, "\tnot supported\r\n" );
}
return true;
}
/*-----------------------------------------------------------*/
static int _Command_NetInfo( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv )
{
const void * cmdIoParam = pCmdIO->cmdIoParam;
union
{
uint32_t ul;
uint8_t b[ 4 ];
}
sUl;
sUl.ul = FreeRTOS_GetIPAddress();
bool linkUp = FreeRTOS_IsNetworkUp() == pdTRUE;
( *pCmdIO->pCmdApi->print )( cmdIoParam, "IP address: %d.%d.%d.%d\r\n", sUl.b[ 0 ], sUl.b[ 1 ], sUl.b[ 2 ], sUl.b[ 3 ] );
( *pCmdIO->pCmdApi->print )( cmdIoParam, "Link is: %s\r\n", linkUp ? "Up" : "Down" );
return true;
}
#include "aws_application_version.h"
static int _Command_Version( SYS_CMD_DEVICE_NODE * pCmdIO,
int argc,
char ** argv )
{
configPRINTF( ( "App version - maj: %d, min: %d, build: %d\r\n", xAppFirmwareVersion.u.x.ucMajor, xAppFirmwareVersion.u.x.ucMinor, xAppFirmwareVersion.u.x.usBuild ) );
return 0;
}
#endif /* (PIC32_MAC_DEBUG_COMMANDS != 0) */
#endif /* #ifdef PIC32_USE_ETHERNET */
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