diff options
Diffstat (limited to 'drivers/staging/ath6kl/htc2/htc_services.c')
| -rw-r--r-- | drivers/staging/ath6kl/htc2/htc_services.c | 450 |
1 files changed, 0 insertions, 450 deletions
diff --git a/drivers/staging/ath6kl/htc2/htc_services.c b/drivers/staging/ath6kl/htc2/htc_services.c deleted file mode 100644 index c48070cbd54f..000000000000 --- a/drivers/staging/ath6kl/htc2/htc_services.c +++ /dev/null @@ -1,450 +0,0 @@ -//------------------------------------------------------------------------------ -// <copyright file="htc_services.c" company="Atheros"> -// Copyright (c) 2007-2010 Atheros Corporation. All rights reserved. -// -// -// Permission to use, copy, modify, and/or distribute this software for any -// purpose with or without fee is hereby granted, provided that the above -// copyright notice and this permission notice appear in all copies. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -// -// -//------------------------------------------------------------------------------ -//============================================================================== -// Author(s): ="Atheros" -//============================================================================== -#include "htc_internal.h" - -void HTCControlTxComplete(void *Context, struct htc_packet *pPacket) -{ - /* not implemented - * we do not send control TX frames during normal runtime, only during setup */ - AR_DEBUG_ASSERT(false); -} - - /* callback when a control message arrives on this endpoint */ -void HTCControlRecv(void *Context, struct htc_packet *pPacket) -{ - AR_DEBUG_ASSERT(pPacket->Endpoint == ENDPOINT_0); - - if (pPacket->Status == A_ECANCELED) { - /* this is a flush operation, return the control packet back to the pool */ - HTC_FREE_CONTROL_RX((struct htc_target*)Context,pPacket); - return; - } - - /* the only control messages we are expecting are NULL messages (credit resports) */ - if (pPacket->ActualLength > 0) { - AR_DEBUG_PRINTF(ATH_DEBUG_ERR, - ("HTCControlRecv, got message with length:%d \n", - pPacket->ActualLength + (u32)HTC_HDR_LENGTH)); - -#ifdef ATH_DEBUG_MODULE - /* dump header and message */ - DebugDumpBytes(pPacket->pBuffer - HTC_HDR_LENGTH, - pPacket->ActualLength + HTC_HDR_LENGTH, - "Unexpected ENDPOINT 0 Message"); -#endif - } - - HTC_RECYCLE_RX_PKT((struct htc_target*)Context,pPacket,&((struct htc_target*)Context)->EndPoint[0]); -} - -int HTCSendSetupComplete(struct htc_target *target) -{ - struct htc_packet *pSendPacket = NULL; - int status; - - do { - /* allocate a packet to send to the target */ - pSendPacket = HTC_ALLOC_CONTROL_TX(target); - - if (NULL == pSendPacket) { - status = A_NO_MEMORY; - break; - } - - if (target->HTCTargetVersion >= HTC_VERSION_2P1) { - HTC_SETUP_COMPLETE_EX_MSG *pSetupCompleteEx; - u32 setupFlags = 0; - - pSetupCompleteEx = (HTC_SETUP_COMPLETE_EX_MSG *)pSendPacket->pBuffer; - A_MEMZERO(pSetupCompleteEx, sizeof(HTC_SETUP_COMPLETE_EX_MSG)); - pSetupCompleteEx->MessageID = HTC_MSG_SETUP_COMPLETE_EX_ID; - if (target->MaxMsgPerBundle > 0) { - /* host can do HTC bundling, indicate this to the target */ - setupFlags |= HTC_SETUP_COMPLETE_FLAGS_ENABLE_BUNDLE_RECV; - pSetupCompleteEx->MaxMsgsPerBundledRecv = target->MaxMsgPerBundle; - } - memcpy(&pSetupCompleteEx->SetupFlags, &setupFlags, sizeof(pSetupCompleteEx->SetupFlags)); - SET_HTC_PACKET_INFO_TX(pSendPacket, - NULL, - (u8 *)pSetupCompleteEx, - sizeof(HTC_SETUP_COMPLETE_EX_MSG), - ENDPOINT_0, - HTC_SERVICE_TX_PACKET_TAG); - - } else { - HTC_SETUP_COMPLETE_MSG *pSetupComplete; - /* assemble setup complete message */ - pSetupComplete = (HTC_SETUP_COMPLETE_MSG *)pSendPacket->pBuffer; - A_MEMZERO(pSetupComplete, sizeof(HTC_SETUP_COMPLETE_MSG)); - pSetupComplete->MessageID = HTC_MSG_SETUP_COMPLETE_ID; - SET_HTC_PACKET_INFO_TX(pSendPacket, - NULL, - (u8 *)pSetupComplete, - sizeof(HTC_SETUP_COMPLETE_MSG), - ENDPOINT_0, - HTC_SERVICE_TX_PACKET_TAG); - } - - /* we want synchronous operation */ - pSendPacket->Completion = NULL; - HTC_PREPARE_SEND_PKT(pSendPacket,0,0,0); - /* send the message */ - status = HTCIssueSend(target,pSendPacket); - - } while (false); - - if (pSendPacket != NULL) { - HTC_FREE_CONTROL_TX(target,pSendPacket); - } - - return status; -} - - -int HTCConnectService(HTC_HANDLE HTCHandle, - struct htc_service_connect_req *pConnectReq, - struct htc_service_connect_resp *pConnectResp) -{ - struct htc_target *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); - int status = 0; - struct htc_packet *pRecvPacket = NULL; - struct htc_packet *pSendPacket = NULL; - HTC_CONNECT_SERVICE_RESPONSE_MSG *pResponseMsg; - HTC_CONNECT_SERVICE_MSG *pConnectMsg; - HTC_ENDPOINT_ID assignedEndpoint = ENDPOINT_MAX; - struct htc_endpoint *pEndpoint; - unsigned int maxMsgSize = 0; - - AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("+HTCConnectService, target:0x%lX SvcID:0x%X \n", - (unsigned long)target, pConnectReq->ServiceID)); - - do { - - AR_DEBUG_ASSERT(pConnectReq->ServiceID != 0); - - if (HTC_CTRL_RSVD_SVC == pConnectReq->ServiceID) { - /* special case for pseudo control service */ - assignedEndpoint = ENDPOINT_0; - maxMsgSize = HTC_MAX_CONTROL_MESSAGE_LENGTH; - } else { - /* allocate a packet to send to the target */ - pSendPacket = HTC_ALLOC_CONTROL_TX(target); - - if (NULL == pSendPacket) { - AR_DEBUG_ASSERT(false); - status = A_NO_MEMORY; - break; - } - /* assemble connect service message */ - pConnectMsg = (HTC_CONNECT_SERVICE_MSG *)pSendPacket->pBuffer; - AR_DEBUG_ASSERT(pConnectMsg != NULL); - A_MEMZERO(pConnectMsg,sizeof(HTC_CONNECT_SERVICE_MSG)); - pConnectMsg->MessageID = HTC_MSG_CONNECT_SERVICE_ID; - pConnectMsg->ServiceID = pConnectReq->ServiceID; - pConnectMsg->ConnectionFlags = pConnectReq->ConnectionFlags; - /* check caller if it wants to transfer meta data */ - if ((pConnectReq->pMetaData != NULL) && - (pConnectReq->MetaDataLength <= HTC_SERVICE_META_DATA_MAX_LENGTH)) { - /* copy meta data into message buffer (after header ) */ - memcpy((u8 *)pConnectMsg + sizeof(HTC_CONNECT_SERVICE_MSG), - pConnectReq->pMetaData, - pConnectReq->MetaDataLength); - pConnectMsg->ServiceMetaLength = pConnectReq->MetaDataLength; - } - - SET_HTC_PACKET_INFO_TX(pSendPacket, - NULL, - (u8 *)pConnectMsg, - sizeof(HTC_CONNECT_SERVICE_MSG) + pConnectMsg->ServiceMetaLength, - ENDPOINT_0, - HTC_SERVICE_TX_PACKET_TAG); - - /* we want synchronous operation */ - pSendPacket->Completion = NULL; - HTC_PREPARE_SEND_PKT(pSendPacket,0,0,0); - status = HTCIssueSend(target,pSendPacket); - - if (status) { - break; - } - - /* wait for response */ - status = HTCWaitforControlMessage(target, &pRecvPacket); - - if (status) { - break; - } - /* we controlled the buffer creation so it has to be properly aligned */ - pResponseMsg = (HTC_CONNECT_SERVICE_RESPONSE_MSG *)pRecvPacket->pBuffer; - - if ((pResponseMsg->MessageID != HTC_MSG_CONNECT_SERVICE_RESPONSE_ID) || - (pRecvPacket->ActualLength < sizeof(HTC_CONNECT_SERVICE_RESPONSE_MSG))) { - /* this message is not valid */ - AR_DEBUG_ASSERT(false); - status = A_EPROTO; - break; - } - - pConnectResp->ConnectRespCode = pResponseMsg->Status; - /* check response status */ - if (pResponseMsg->Status != HTC_SERVICE_SUCCESS) { - AR_DEBUG_PRINTF(ATH_DEBUG_ERR, - (" Target failed service 0x%X connect request (status:%d)\n", - pResponseMsg->ServiceID, pResponseMsg->Status)); - status = A_EPROTO; - break; - } - - assignedEndpoint = (HTC_ENDPOINT_ID) pResponseMsg->EndpointID; - maxMsgSize = pResponseMsg->MaxMsgSize; - - if ((pConnectResp->pMetaData != NULL) && - (pResponseMsg->ServiceMetaLength > 0) && - (pResponseMsg->ServiceMetaLength <= HTC_SERVICE_META_DATA_MAX_LENGTH)) { - /* caller supplied a buffer and the target responded with data */ - int copyLength = min((int)pConnectResp->BufferLength, (int)pResponseMsg->ServiceMetaLength); - /* copy the meta data */ - memcpy(pConnectResp->pMetaData, - ((u8 *)pResponseMsg) + sizeof(HTC_CONNECT_SERVICE_RESPONSE_MSG), - copyLength); - pConnectResp->ActualLength = copyLength; - } - - } - - /* the rest of these are parameter checks so set the error status */ - status = A_EPROTO; - - if (assignedEndpoint >= ENDPOINT_MAX) { - AR_DEBUG_ASSERT(false); - break; - } - - if (0 == maxMsgSize) { - AR_DEBUG_ASSERT(false); - break; - } - - pEndpoint = &target->EndPoint[assignedEndpoint]; - pEndpoint->Id = assignedEndpoint; - if (pEndpoint->ServiceID != 0) { - /* endpoint already in use! */ - AR_DEBUG_ASSERT(false); - break; - } - - /* return assigned endpoint to caller */ - pConnectResp->Endpoint = assignedEndpoint; - pConnectResp->MaxMsgLength = maxMsgSize; - - /* setup the endpoint */ - pEndpoint->ServiceID = pConnectReq->ServiceID; /* this marks the endpoint in use */ - pEndpoint->MaxTxQueueDepth = pConnectReq->MaxSendQueueDepth; - pEndpoint->MaxMsgLength = maxMsgSize; - /* copy all the callbacks */ - pEndpoint->EpCallBacks = pConnectReq->EpCallbacks; - /* set the credit distribution info for this endpoint, this information is - * passed back to the credit distribution callback function */ - pEndpoint->CreditDist.ServiceID = pConnectReq->ServiceID; - pEndpoint->CreditDist.pHTCReserved = pEndpoint; - pEndpoint->CreditDist.Endpoint = assignedEndpoint; - pEndpoint->CreditDist.TxCreditSize = target->TargetCreditSize; - - if (pConnectReq->MaxSendMsgSize != 0) { - /* override TxCreditsPerMaxMsg calculation, this optimizes the credit-low indications - * since the host will actually issue smaller messages in the Send path */ - if (pConnectReq->MaxSendMsgSize > maxMsgSize) { - /* can't be larger than the maximum the target can support */ - AR_DEBUG_ASSERT(false); - break; - } - pEndpoint->CreditDist.TxCreditsPerMaxMsg = pConnectReq->MaxSendMsgSize / target->TargetCreditSize; - } else { - pEndpoint->CreditDist.TxCreditsPerMaxMsg = maxMsgSize / target->TargetCreditSize; - } - - if (0 == pEndpoint->CreditDist.TxCreditsPerMaxMsg) { - pEndpoint->CreditDist.TxCreditsPerMaxMsg = 1; - } - - /* save local connection flags */ - pEndpoint->LocalConnectionFlags = pConnectReq->LocalConnectionFlags; - - status = 0; - - } while (false); - - if (pSendPacket != NULL) { - HTC_FREE_CONTROL_TX(target,pSendPacket); - } - - if (pRecvPacket != NULL) { - HTC_FREE_CONTROL_RX(target,pRecvPacket); - } - - AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-HTCConnectService \n")); - - return status; -} - -static void AddToEndpointDistList(struct htc_target *target, struct htc_endpoint_credit_dist *pEpDist) -{ - struct htc_endpoint_credit_dist *pCurEntry,*pLastEntry; - - if (NULL == target->EpCreditDistributionListHead) { - target->EpCreditDistributionListHead = pEpDist; - pEpDist->pNext = NULL; - pEpDist->pPrev = NULL; - return; - } - - /* queue to the end of the list, this does not have to be very - * fast since this list is built at startup time */ - pCurEntry = target->EpCreditDistributionListHead; - - while (pCurEntry) { - pLastEntry = pCurEntry; - pCurEntry = pCurEntry->pNext; - } - - pLastEntry->pNext = pEpDist; - pEpDist->pPrev = pLastEntry; - pEpDist->pNext = NULL; -} - - - -/* default credit init callback */ -static void HTCDefaultCreditInit(void *Context, - struct htc_endpoint_credit_dist *pEPList, - int TotalCredits) -{ - struct htc_endpoint_credit_dist *pCurEpDist; - int totalEps = 0; - int creditsPerEndpoint; - - pCurEpDist = pEPList; - /* first run through the list and figure out how many endpoints we are dealing with */ - while (pCurEpDist != NULL) { - pCurEpDist = pCurEpDist->pNext; - totalEps++; - } - - /* even distribution */ - creditsPerEndpoint = TotalCredits/totalEps; - - pCurEpDist = pEPList; - /* run through the list and set minimum and normal credits and - * provide the endpoint with some credits to start */ - while (pCurEpDist != NULL) { - - if (creditsPerEndpoint < pCurEpDist->TxCreditsPerMaxMsg) { - /* too many endpoints and not enough credits */ - AR_DEBUG_ASSERT(false); - break; - } - /* our minimum is set for at least 1 max message */ - pCurEpDist->TxCreditsMin = pCurEpDist->TxCreditsPerMaxMsg; - /* this value is ignored by our credit alg, since we do - * not dynamically adjust credits, this is the policy of - * the "default" credit distribution, something simple and easy */ - pCurEpDist->TxCreditsNorm = 0xFFFF; - /* give the endpoint minimum credits */ - pCurEpDist->TxCredits = creditsPerEndpoint; - pCurEpDist->TxCreditsAssigned = creditsPerEndpoint; - pCurEpDist = pCurEpDist->pNext; - } - -} - -/* default credit distribution callback, NOTE, this callback holds the TX lock */ -void HTCDefaultCreditDist(void *Context, - struct htc_endpoint_credit_dist *pEPDistList, - HTC_CREDIT_DIST_REASON Reason) -{ - struct htc_endpoint_credit_dist *pCurEpDist; - - if (Reason == HTC_CREDIT_DIST_SEND_COMPLETE) { - pCurEpDist = pEPDistList; - /* simple distribution */ - while (pCurEpDist != NULL) { - if (pCurEpDist->TxCreditsToDist > 0) { - /* just give the endpoint back the credits */ - pCurEpDist->TxCredits += pCurEpDist->TxCreditsToDist; - pCurEpDist->TxCreditsToDist = 0; - } - pCurEpDist = pCurEpDist->pNext; - } - } - - /* note we do not need to handle the other reason codes as this is a very - * simple distribution scheme, no need to seek for more credits or handle inactivity */ -} - -void HTCSetCreditDistribution(HTC_HANDLE HTCHandle, - void *pCreditDistContext, - HTC_CREDIT_DIST_CALLBACK CreditDistFunc, - HTC_CREDIT_INIT_CALLBACK CreditInitFunc, - HTC_SERVICE_ID ServicePriorityOrder[], - int ListLength) -{ - struct htc_target *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); - int i; - int ep; - - if (CreditInitFunc != NULL) { - /* caller has supplied their own distribution functions */ - target->InitCredits = CreditInitFunc; - AR_DEBUG_ASSERT(CreditDistFunc != NULL); - target->DistributeCredits = CreditDistFunc; - target->pCredDistContext = pCreditDistContext; - } else { - /* caller wants HTC to do distribution */ - /* if caller wants service to handle distributions then - * it must set both of these to NULL! */ - AR_DEBUG_ASSERT(CreditDistFunc == NULL); - target->InitCredits = HTCDefaultCreditInit; - target->DistributeCredits = HTCDefaultCreditDist; - target->pCredDistContext = target; - } - - /* always add HTC control endpoint first, we only expose the list after the - * first one, this is added for TX queue checking */ - AddToEndpointDistList(target, &target->EndPoint[ENDPOINT_0].CreditDist); - - /* build the list of credit distribution structures in priority order - * supplied by the caller, these will follow endpoint 0 */ - for (i = 0; i < ListLength; i++) { - /* match services with endpoints and add the endpoints to the distribution list - * in FIFO order */ - for (ep = ENDPOINT_1; ep < ENDPOINT_MAX; ep++) { - if (target->EndPoint[ep].ServiceID == ServicePriorityOrder[i]) { - /* queue this one to the list */ - AddToEndpointDistList(target, &target->EndPoint[ep].CreditDist); - break; - } - } - AR_DEBUG_ASSERT(ep < ENDPOINT_MAX); - } - -} |