Std_ReturnType Com_SendSignalGroup(Com_SignalGroupIdType SignalGroupId) {
//#warning Com_SendSignalGroup should be performed atomically. Should we disable interrupts here?
const ComSignal_type * Signal = GET_Signal(SignalGroupId);
Com_Arc_IPdu_type *Arc_IPdu = GET_ArcIPdu(Signal->ComIPduHandleId);
const ComIPdu_type *IPdu = GET_IPdu(Signal->ComIPduHandleId);
if (isPduBufferLocked(getPduId(IPdu))) {
return COM_BUSY;
}
// Copy shadow buffer to Ipdu data space
imask_t irq_state;
Irq_Save(irq_state);
Com_CopySignalGroupDataFromShadowBufferToPdu(SignalGroupId);
// If the signal has an update bit. Set it!
if (Signal->ComSignalArcUseUpdateBit) {
SETBIT(IPdu->ComIPduDataPtr, Signal->ComUpdateBitPosition);
}
// If signal has triggered transmit property, trigger a transmission!
if (Signal->ComTransferProperty == TRIGGERED) {
Arc_IPdu->Com_Arc_TxIPduTimers.ComTxIPduNumberOfRepetitionsLeft = IPdu->ComTxIPdu.ComTxModeTrue.ComTxModeNumberOfRepetitions + 1;
}
Irq_Restore(irq_state);
return E_OK;
}
void Com_Init(const Com_ConfigType *config ) {
DEBUG(DEBUG_LOW, "--Initialization of COM--\n");
/* !req COM328 */ /* Shall not enable inter-ECU communication */
/* !req COM483 */
/* @req COM128 */
/* @req COM217 */
/* @req COM444 */
/* @req COM772 */ // If timeout set to 0
uint8 failure = 0;
/* @req COM433 */
if( NULL == config ) {
DET_REPORTERROR(COM_INIT_ID, COM_E_PARAM_POINTER);
return;
}
ComConfig = config;
uint32 firstTimeout;
boolean dataChanged = FALSE;
//lint --e(928) PC-Lint exception Misra 11.4, Must be like this. /tojo
uint8 endiannessByte = *(const uint8 *)&endianness_test;
if ( endiannessByte == 0xef ) { Com_SystemEndianness = COM_LITTLE_ENDIAN; }
else if ( endiannessByte == 0xde ) { Com_SystemEndianness = COM_BIG_ENDIAN; }
else {
// No other endianness supported
//lint --e(506) PC-Lint exception Misra 13.7, 14.1, Allow boolean to always be false.
assert(0);
}
// Initialize each IPdu
//ComIPdu_type *IPdu;
//Com_Arc_IPdu_type *Arc_IPdu;
const ComSignal_type *Signal;
const ComGroupSignal_type *GroupSignal;
uint16 bufferIndex = 0;
for (uint16 i = 0; !ComConfig->ComIPdu[i].Com_Arc_EOL; i++) {
boolean pduHasGroupSignal = FALSE;
const ComIPdu_type *IPdu = GET_IPdu(i);
Com_Arc_IPdu_type *Arc_IPdu = GET_ArcIPdu(i);
Arc_IPdu->Com_Arc_DynSignalLength = 0;
if (i >= ComConfig->ComNofIPdus) {
DET_REPORTERROR(COM_INIT_ID ,COM_E_TOO_MANY_IPDU);
failure = 1;
break;
}
/* Set the data ptr for this Pdu */
Arc_IPdu->ComIPduDataPtr = (void *)&Com_Arc_Buffer[bufferIndex];
bufferIndex += IPdu->ComIPduSize;
// If this is a TX and cyclic IPdu, configure the first deadline.
if ( (IPdu->ComIPduDirection == SEND) &&
( (IPdu->ComTxIPdu.ComTxModeTrue.ComTxModeMode == PERIODIC) || (IPdu->ComTxIPdu.ComTxModeTrue.ComTxModeMode == MIXED) )) {
//IPdu->Com_Arc_TxIPduTimers.ComTxModeTimePeriodTimer = IPdu->ComTxIPdu.ComTxModeTrue.ComTxModeTimeOffsetFactor;
Arc_IPdu->Com_Arc_TxIPduTimers.ComTxModeTimePeriodTimer = IPdu->ComTxIPdu.ComTxModeTrue.ComTxModeTimeOffsetFactor;
}
// Reset firstTimeout.
firstTimeout = 0xffffffffu;
// Initialize the memory with the default value.
/* @req COM015 */
if (IPdu->ComIPduDirection == SEND) {
memset((void *)Arc_IPdu->ComIPduDataPtr, IPdu->ComTxIPdu.ComTxIPduUnusedAreasDefault, IPdu->ComIPduSize);
}
// For each signal in this PDU.
//Arc_IPdu->NComIPduSignalRef = 0;
for (uint16 j = 0; (IPdu->ComIPduSignalRef != NULL) && (IPdu->ComIPduSignalRef[j] != NULL) ; j++) {
Signal = IPdu->ComIPduSignalRef[j];
Com_Arc_Signal_type * Arc_Signal = GET_ArcSignal(Signal->ComHandleId);
// Configure signal deadline monitoring if used.
/* @req COM333 */ // If timeout set to 0
if (Signal->ComTimeoutFactor > 0) {
if (Signal->ComSignalArcUseUpdateBit) {
// This signal uses an update bit, and hence has its own deadline monitoring.
/* @req COM292 */
Arc_Signal->Com_Arc_DeadlineCounter = Signal->ComFirstTimeoutFactor; // Configure the deadline counter
} else {
// This signal does not use an update bit, and should therefore use per I-PDU deadline monitoring.
if (firstTimeout > Signal->ComFirstTimeoutFactor) {
firstTimeout = Signal->ComFirstTimeoutFactor;
}
}
}
// Clear update bits
/* @req COM117 */
if (Signal->ComSignalArcUseUpdateBit) {
CLEARBIT(Arc_IPdu->ComIPduDataPtr, Signal->ComUpdateBitPosition);
}
// If this signal is a signal group
if (Signal->Com_Arc_IsSignalGroup) {
pduHasGroupSignal = TRUE;
Arc_Signal->Com_Arc_ShadowBuffer = (void *)&Com_Arc_Buffer[bufferIndex];
// For each group signal of this signal group.
for(uint8 h = 0; Signal->ComGroupSignal[h] != NULL; h++) {
GroupSignal = Signal->ComGroupSignal[h];
Com_Arc_GroupSignal_type *Arc_GroupSignal = GET_ArcGroupSignal(GroupSignal->ComHandleId);
// Set pointer to shadow buffer
Arc_GroupSignal->Com_Arc_ShadowBuffer = (void *)Arc_Signal->Com_Arc_ShadowBuffer;
// Initialize shadowbuffer.
/* @req COM484 */
Com_Internal_UpdateShadowSignal(GroupSignal->ComHandleId, GroupSignal->ComSignalInitValue);
}
// Initialize group signal data from shadowbuffer.
/* @req COM098 */
Com_CopySignalGroupDataFromShadowBufferToPdu(Signal->ComHandleId, false, &dataChanged);
} else {
// Initialize signal data.
/* @req COM098 */
Com_WriteSignalDataToPdu(Signal->ComHandleId, Signal->ComSignalInitValue, &dataChanged);
}
}
if( pduHasGroupSignal ) {
/* This pdu has includes group signals. Means that a shodow buffer was set up.
* Increment index. */
bufferIndex += IPdu->ComIPduSize;
}
if (IPdu->ComIPduDirection == RECEIVE && IPdu->ComIPduSignalProcessing == DEFERRED) {
/* Set pointer to the deferred buffer */
Arc_IPdu->ComIPduDeferredDataPtr = (void *)&Com_Arc_Buffer[bufferIndex];
bufferIndex += IPdu->ComIPduSize;
// Copy the initialized pdu to deferred buffer
memcpy(Arc_IPdu->ComIPduDeferredDataPtr,Arc_IPdu->ComIPduDataPtr,IPdu->ComIPduSize);
}
// Configure per I-PDU based deadline monitoring.
for (uint16 j = 0; (IPdu->ComIPduSignalRef != NULL) && (IPdu->ComIPduSignalRef[j] != NULL); j++) {
Signal = IPdu->ComIPduSignalRef[j];
Com_Arc_Signal_type * Arc_Signal = GET_ArcSignal(Signal->ComHandleId);
/* @req COM333 */ // If timeout set to 0
if ( (Signal->ComTimeoutFactor > 0) && (!Signal->ComSignalArcUseUpdateBit) ) {
/* @req COM290 */
Arc_Signal->Com_Arc_DeadlineCounter = firstTimeout;
}
}
}
for (uint16 i = 0; i < ComConfig->ComNofIPdus; i++) {
Com_BufferPduState[i].currentPosition = 0;
Com_BufferPduState[i].locked = false;
}
// An error occurred.
if (failure) {
DEBUG(DEBUG_LOW, "--Initialization of COM failed--\n");
//DET_REPORTERROR(COM_MODULE_ID, COM_INSTANCE_ID, 0x01, COM_E_INVALID_FILTER_CONFIGURATION);
} else {
initStatus = COM_INIT;
DEBUG(DEBUG_LOW, "--Initialization of COM completed--\n");
}
}
