static void DoRecvCompletion(HTC_ENDPOINT *pEndpoint,
HTC_PACKET_QUEUE *pQueueToIndicate)
{
do {
if (HTC_QUEUE_EMPTY(pQueueToIndicate)) {
/* nothing to indicate */
break;
}
if (pEndpoint->EpCallBacks.EpRecvPktMultiple != NULL) {
AR_DEBUG_PRINTF(ATH_DEBUG_RECV, (" HTC calling ep %d, recv multiple callback (%d pkts) \n",
pEndpoint->Id, HTC_PACKET_QUEUE_DEPTH(pQueueToIndicate)));
/* a recv multiple handler is being used, pass the queue to the handler */
pEndpoint->EpCallBacks.EpRecvPktMultiple(pEndpoint->EpCallBacks.pContext,
pQueueToIndicate);
INIT_HTC_PACKET_QUEUE(pQueueToIndicate);
} else {
HTC_PACKET *pPacket;
/* using legacy EpRecv */
while (!HTC_QUEUE_EMPTY(pQueueToIndicate)) {
pPacket = HTC_PACKET_DEQUEUE(pQueueToIndicate);
AR_DEBUG_PRINTF(ATH_DEBUG_RECV, (" HTC calling ep %d recv callback on packet %p \n",
pEndpoint->Id, pPacket));
pEndpoint->EpCallBacks.EpRecv(pEndpoint->EpCallBacks.pContext, pPacket);
}
}
} while (FALSE);
}
void htc_dump_credit_states(HTC_HANDLE HTCHandle)
{
HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle);
HTC_ENDPOINT *pEndpoint;
int i;
for (i = 0; i < ENDPOINT_MAX; i++) {
pEndpoint = &target->EndPoint[i];
if (0 == pEndpoint->ServiceID) {
continue;
}
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
("--- EP : %d ServiceID: 0x%X --------------\n",
pEndpoint->Id, pEndpoint->ServiceID));
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
(" TxCredits : %d \n",
pEndpoint->TxCredits));
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
(" TxCreditSize : %d \n",
pEndpoint->TxCreditSize));
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
(" TxCreditsPerMaxMsg : %d \n",
pEndpoint->TxCreditsPerMaxMsg));
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
(" TxQueueDepth : %d \n",
HTC_PACKET_QUEUE_DEPTH(&pEndpoint->TxQueue)));
AR_DEBUG_PRINTF(ATH_DEBUG_ANY,
("----------------------------------------------------\n"));
}
}
int HTCGetNumRecvBuffers(HTC_HANDLE HTCHandle,
HTC_ENDPOINT_ID Endpoint)
{
HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle);
HTC_ENDPOINT *pEndpoint = &target->EndPoint[Endpoint];
return HTC_PACKET_QUEUE_DEPTH(&pEndpoint->RxBufferHoldQueue);
}
A_STATUS HTCAddReceivePktMultiple(HTC_HANDLE HTCHandle, HTC_PACKET_QUEUE *pPktQueue)
{
HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle);
HTC_ENDPOINT *pEndpoint;
HTC_PACKET *pFirstPacket;
A_STATUS status = A_OK;
HTC_PACKET *pPacket;
pFirstPacket = HTC_GET_PKT_AT_HEAD(pPktQueue);
if (NULL == pFirstPacket) {
A_ASSERT(FALSE);
return A_EINVAL;
}
AR_DEBUG_ASSERT(pFirstPacket->Endpoint < ENDPOINT_MAX);
AR_DEBUG_PRINTF(ATH_DEBUG_RECV,
("+- HTCAddReceivePktMultiple : endPointId: %d, cnt:%d, length: %d\n",
pFirstPacket->Endpoint,
HTC_PACKET_QUEUE_DEPTH(pPktQueue),
pFirstPacket->BufferLength));
pEndpoint = &target->EndPoint[pFirstPacket->Endpoint];
LOCK_HTC_RX(target);
do {
if (HTC_STOPPING(target)) {
status = A_ERROR;
break;
}
/* store receive packets */
HTC_PACKET_QUEUE_TRANSFER_TO_TAIL(&pEndpoint->RxBufferHoldQueue,pPktQueue);
} while (FALSE);
UNLOCK_HTC_RX(target);
if (A_FAILED(status)) {
/* walk through queue and mark each one canceled */
HTC_PACKET_QUEUE_ITERATE_ALLOW_REMOVE(pPktQueue,pPacket) {
pPacket->Status = A_ECANCELED;
} HTC_PACKET_QUEUE_ITERATE_END;
DoRecvCompletion(pEndpoint,pPktQueue);
}
return status;
}
A_STATUS HTCRxCompletionHandler(
void *Context, adf_nbuf_t netbuf, a_uint8_t pipeID)
{
A_STATUS status = A_OK;
HTC_FRAME_HDR *HtcHdr;
HTC_TARGET *target = (HTC_TARGET *)Context;
a_uint8_t *netdata;
a_uint32_t netlen;
HTC_ENDPOINT *pEndpoint;
HTC_PACKET *pPacket;
A_UINT16 payloadLen;
a_uint32_t trailerlen = 0;
A_UINT8 htc_ep_id;
#ifdef RX_SG_SUPPORT
LOCK_HTC_RX(target);
if (target->IsRxSgInprogress) {
target->CurRxSgTotalLen += adf_nbuf_len(netbuf);
adf_nbuf_queue_add(&target->RxSgQueue, netbuf);
if (target->CurRxSgTotalLen == target->ExpRxSgTotalLen) {
netbuf = RxSgToSingleNetbuf(target);
if (netbuf == NULL) {
UNLOCK_HTC_RX(target);
goto _out;
}
}
else {
netbuf = NULL;
UNLOCK_HTC_RX(target);
goto _out;
}
}
UNLOCK_HTC_RX(target);
#endif
netdata = adf_nbuf_data(netbuf);
netlen = adf_nbuf_len(netbuf);
HtcHdr = (HTC_FRAME_HDR *)netdata;
do {
htc_ep_id = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, ENDPOINTID);
if (htc_ep_id >= ENDPOINT_MAX) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HTC Rx: invalid EndpointID=%d\n",htc_ep_id));
DebugDumpBytes((A_UINT8 *)HtcHdr,sizeof(HTC_FRAME_HDR),"BAD HTC Header");
status = A_ERROR;
VOS_BUG(0);
break;
}
pEndpoint = &target->EndPoint[htc_ep_id];
/*
* If this endpoint that received a message from the target has
* a to-target HIF pipe whose send completions are polled rather
* than interrupt-driven, this is a good point to ask HIF to check
* whether it has any completed sends to handle.
*/
if (pEndpoint->ul_is_polled) {
HTCSendCompleteCheck(pEndpoint, 1);
}
payloadLen = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, PAYLOADLEN);
if (netlen < (payloadLen + HTC_HDR_LENGTH)) {
#ifdef RX_SG_SUPPORT
LOCK_HTC_RX(target);
target->IsRxSgInprogress = TRUE;
adf_nbuf_queue_init(&target->RxSgQueue);
adf_nbuf_queue_add(&target->RxSgQueue, netbuf);
target->ExpRxSgTotalLen = (payloadLen + HTC_HDR_LENGTH);
target->CurRxSgTotalLen += netlen;
UNLOCK_HTC_RX(target);
netbuf = NULL;
break;
#else
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HTC Rx: insufficient length, got:%d expected =%zu\n",
netlen, payloadLen + HTC_HDR_LENGTH));
DebugDumpBytes((A_UINT8 *)HtcHdr,sizeof(HTC_FRAME_HDR),"BAD RX packet length");
status = A_ERROR;
VOS_BUG(0);
break;
#endif
}
#ifdef HTC_EP_STAT_PROFILING
LOCK_HTC_RX(target);
INC_HTC_EP_STAT(pEndpoint,RxReceived,1);
UNLOCK_HTC_RX(target);
#endif
//if (IS_TX_CREDIT_FLOW_ENABLED(pEndpoint)) {
{
A_UINT8 temp;
/* get flags to check for trailer */
temp = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, FLAGS);
if (temp & HTC_FLAGS_RECV_TRAILER) {
/* extract the trailer length */
temp = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, CONTROLBYTES0);
if ((temp < sizeof(HTC_RECORD_HDR)) || (temp > payloadLen)) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,
("HTCRxCompletionHandler, invalid header (payloadlength should be :%d, CB[0] is:%d) \n",
payloadLen, temp));
status = A_EPROTO;
break;
}
trailerlen = temp;
/* process trailer data that follows HDR + application payload */
status = HTCProcessTrailer(target,
((A_UINT8 *)HtcHdr + HTC_HDR_LENGTH + payloadLen - temp),
temp, htc_ep_id);
if (A_FAILED(status)) {
break;
}
}
}
if (((int)payloadLen - (int)trailerlen) <= 0) {
/* zero length packet with trailer data, just drop these */
break;
}
if (htc_ep_id == ENDPOINT_0) {
A_UINT16 message_id;
HTC_UNKNOWN_MSG *htc_msg;
int wow_nack = 0;
/* remove HTC header */
adf_nbuf_pull_head(netbuf, HTC_HDR_LENGTH);
netdata = adf_nbuf_data(netbuf);
netlen = adf_nbuf_len(netbuf);
htc_msg = (HTC_UNKNOWN_MSG*)netdata;
message_id = HTC_GET_FIELD(htc_msg, HTC_UNKNOWN_MSG, MESSAGEID);
switch (message_id) {
default:
/* handle HTC control message */
if (target->CtrlResponseProcessing) {
/* this is a fatal error, target should not be sending unsolicited messages
* on the endpoint 0 */
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HTC Rx Ctrl still processing\n"));
status = A_ERROR;
VOS_BUG(FALSE);
break;
}
LOCK_HTC_RX(target);
target->CtrlResponseLength = min((int)netlen,HTC_MAX_CONTROL_MESSAGE_LENGTH);
A_MEMCPY(target->CtrlResponseBuffer,netdata,target->CtrlResponseLength);
/* Requester will clear this flag */
target->CtrlResponseProcessing = TRUE;
UNLOCK_HTC_RX(target);
adf_os_complete(&target->CtrlResponseValid);
break;
case HTC_MSG_SEND_SUSPEND_COMPLETE:
wow_nack = 0;
LOCK_HTC_CREDIT(target);
htc_credit_record(HTC_SUSPEND_ACK, pEndpoint->TxCredits,
HTC_PACKET_QUEUE_DEPTH(&pEndpoint->TxQueue));
UNLOCK_HTC_CREDIT(target);
target->HTCInitInfo.TargetSendSuspendComplete((void *)&wow_nack);
HTCsuspendwow(target);
break;
case HTC_MSG_NACK_SUSPEND:
wow_nack = 1;
LOCK_HTC_CREDIT(target);
htc_credit_record(HTC_SUSPEND_NACK, pEndpoint->TxCredits,
HTC_PACKET_QUEUE_DEPTH(&pEndpoint->TxQueue));
UNLOCK_HTC_CREDIT(target);
target->HTCInitInfo.TargetSendSuspendComplete((void *)&wow_nack);
break;
}
adf_nbuf_free(netbuf);
netbuf = NULL;
break;
}
/* the current message based HIF architecture allocates net bufs for recv packets
* since this layer bridges that HIF to upper layers , which expects HTC packets,
* we form the packets here
* TODO_FIXME */
pPacket = AllocateHTCPacketContainer(target);
if (NULL == pPacket) {
status = A_NO_RESOURCE;
break;
}
pPacket->Status = A_OK;
pPacket->Endpoint = htc_ep_id;
pPacket->pPktContext = netbuf;
pPacket->pBuffer = adf_nbuf_data(netbuf) + HTC_HDR_LENGTH;
pPacket->ActualLength = netlen - HTC_HEADER_LEN - trailerlen;
adf_nbuf_pull_head(netbuf, HTC_HEADER_LEN);
adf_nbuf_set_pktlen(netbuf, pPacket->ActualLength);
RecvPacketCompletion(target,pEndpoint,pPacket);
/* recover the packet container */
FreeHTCPacketContainer(target,pPacket);
netbuf = NULL;
} while(FALSE);
#ifdef RX_SG_SUPPORT
_out:
#endif
if (netbuf != NULL) {
adf_nbuf_free(netbuf);
}
return status;
}
