| /* |
| * Copyright (C) 2010 NXP Semiconductors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * \file phFriNfc_LlcpTransport_Connectionless.c |
| * \brief |
| * |
| * Project: NFC-FRI |
| * |
| */ |
| /*include files*/ |
| #include <phOsalNfc.h> |
| #include <phLibNfcStatus.h> |
| #include <phLibNfc.h> |
| #include <phNfcLlcpTypes.h> |
| #include <phFriNfc_LlcpTransport.h> |
| #include <phFriNfc_Llcp.h> |
| |
| static void phFriNfc_LlcpTransport_Connectionless_SendTo_CB(void* pContext, |
| NFCSTATUS status); |
| |
| NFCSTATUS phFriNfc_LlcpTransport_Connectionless_HandlePendingOperations(phFriNfc_LlcpTransport_Socket_t *pSocket) |
| { |
| NFCSTATUS status = NFCSTATUS_FAILED; |
| |
| /* Check if something is pending and if transport layer is ready to send */ |
| if ((pSocket->pfSocketSend_Cb != NULL) && |
| (pSocket->psTransport->bSendPending == FALSE)) |
| { |
| /* Fill the psLlcpHeader stuture with the DSAP,PTYPE and the SSAP */ |
| pSocket->sLlcpHeader.dsap = pSocket->socket_dSap; |
| pSocket->sLlcpHeader.ptype = PHFRINFC_LLCP_PTYPE_UI; |
| pSocket->sLlcpHeader.ssap = pSocket->socket_sSap; |
| |
| /* Send to data to the approiate socket */ |
| status = phFriNfc_LlcpTransport_LinkSend(pSocket->psTransport, |
| &pSocket->sLlcpHeader, |
| NULL, |
| &pSocket->sSocketSendBuffer, |
| phFriNfc_LlcpTransport_Connectionless_SendTo_CB, |
| pSocket); |
| } |
| else |
| { |
| /* Cannot send now, retry later */ |
| } |
| |
| return status; |
| } |
| |
| |
| /* TODO: comment function Handle_Connectionless_IncommingFrame */ |
| void Handle_Connectionless_IncommingFrame(phFriNfc_LlcpTransport_t *pLlcpTransport, |
| phNfc_sData_t *psData, |
| uint8_t dsap, |
| uint8_t ssap) |
| { |
| phFriNfc_LlcpTransport_Socket_t * pSocket = NULL; |
| uint8_t i = 0; |
| uint8_t writeIndex; |
| |
| /* Look through the socket table for a match */ |
| for(i=0;i<PHFRINFC_LLCP_NB_SOCKET_MAX;i++) |
| { |
| if(pLlcpTransport->pSocketTable[i].socket_sSap == dsap) |
| { |
| /* Socket found ! */ |
| pSocket = &pLlcpTransport->pSocketTable[i]; |
| |
| /* Forward directly to application if a read is pending */ |
| if (pSocket->bSocketRecvPending == TRUE) |
| { |
| /* Reset the RecvPending variable */ |
| pSocket->bSocketRecvPending = FALSE; |
| |
| /* Copy the received buffer into the receive buffer */ |
| memcpy(pSocket->sSocketRecvBuffer->buffer, psData->buffer, psData->length); |
| |
| /* Update the received length */ |
| *pSocket->receivedLength = psData->length; |
| |
| /* call the recv callback */ |
| pSocket->pfSocketRecvFrom_Cb(pSocket->pRecvContext, ssap, NFCSTATUS_SUCCESS); |
| pSocket->pfSocketRecvFrom_Cb = NULL; |
| } |
| /* If no read is pending, try to bufferize for later reading */ |
| else |
| { |
| if((pSocket->indexRwWrite - pSocket->indexRwRead) < pSocket->localRW) |
| { |
| writeIndex = pSocket->indexRwWrite % pSocket->localRW; |
| /* Save SSAP */ |
| pSocket->sSocketRwBufferTable[writeIndex].buffer[0] = ssap; |
| /* Save UI frame payload */ |
| memcpy(pSocket->sSocketRwBufferTable[writeIndex].buffer + 1, |
| psData->buffer, |
| psData->length); |
| pSocket->sSocketRwBufferTable[writeIndex].length = psData->length; |
| |
| /* Update the RW write index */ |
| pSocket->indexRwWrite++; |
| } |
| else |
| { |
| /* Unable to bufferize the packet, drop it */ |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| /* TODO: comment function phFriNfc_LlcpTransport_Connectionless_SendTo_CB */ |
| static void phFriNfc_LlcpTransport_Connectionless_SendTo_CB(void* pContext, |
| NFCSTATUS status) |
| { |
| phFriNfc_LlcpTransport_Socket_t * pLlcpSocket = (phFriNfc_LlcpTransport_Socket_t*)pContext; |
| pphFriNfc_LlcpTransportSocketSendCb_t pfSavedCallback; |
| void * pSavedContext; |
| |
| /* Call the send callback */ |
| pfSavedCallback = pLlcpSocket->pfSocketSend_Cb; |
| if (pfSavedCallback != NULL) |
| { |
| pLlcpSocket->pfSocketSend_Cb = NULL; |
| pfSavedCallback(pLlcpSocket->pSendContext, status); |
| } |
| } |
| |
| static void phFriNfc_LlcpTransport_Connectionless_Abort(phFriNfc_LlcpTransport_Socket_t* pLlcpSocket) |
| { |
| if (pLlcpSocket->pfSocketSend_Cb != NULL) |
| { |
| pLlcpSocket->pfSocketSend_Cb(pLlcpSocket->pSendContext, NFCSTATUS_ABORTED); |
| pLlcpSocket->pSendContext = NULL; |
| pLlcpSocket->pfSocketSend_Cb = NULL; |
| } |
| if (pLlcpSocket->pfSocketRecvFrom_Cb != NULL) |
| { |
| pLlcpSocket->pfSocketRecvFrom_Cb(pLlcpSocket->pRecvContext, 0, NFCSTATUS_ABORTED); |
| pLlcpSocket->pRecvContext = NULL; |
| pLlcpSocket->pfSocketRecvFrom_Cb = NULL; |
| pLlcpSocket->pfSocketRecv_Cb = NULL; |
| } |
| pLlcpSocket->pAcceptContext = NULL; |
| pLlcpSocket->pfSocketAccept_Cb = NULL; |
| pLlcpSocket->pListenContext = NULL; |
| pLlcpSocket->pfSocketListen_Cb = NULL; |
| pLlcpSocket->pConnectContext = NULL; |
| pLlcpSocket->pfSocketConnect_Cb = NULL; |
| pLlcpSocket->pDisonnectContext = NULL; |
| pLlcpSocket->pfSocketDisconnect_Cb = NULL; |
| } |
| |
| /** |
| * \ingroup grp_fri_nfc |
| * \brief <b>Close a socket on a LLCP-connectionless device</b>. |
| * |
| * This function closes a LLCP socket previously created using phFriNfc_LlcpTransport_Socket. |
| * |
| * \param[in] pLlcpSocket A pointer to a phFriNfc_LlcpTransport_Socket_t. |
| |
| * \retval NFCSTATUS_SUCCESS Operation successful. |
| * \retval NFCSTATUS_INVALID_PARAMETER One or more of the supplied parameters |
| * could not be properly interpreted. |
| * \retval NFCSTATUS_FAILED Operation failed. |
| */ |
| NFCSTATUS phFriNfc_LlcpTransport_Connectionless_Close(phFriNfc_LlcpTransport_Socket_t* pLlcpSocket) |
| { |
| /* Reset the pointer to the socket closed */ |
| pLlcpSocket->eSocket_State = phFriNfc_LlcpTransportSocket_eSocketDefault; |
| pLlcpSocket->eSocket_Type = phFriNfc_LlcpTransport_eDefaultType; |
| pLlcpSocket->pContext = NULL; |
| pLlcpSocket->pSocketErrCb = NULL; |
| pLlcpSocket->socket_sSap = PHFRINFC_LLCP_SAP_DEFAULT; |
| pLlcpSocket->socket_dSap = PHFRINFC_LLCP_SAP_DEFAULT; |
| pLlcpSocket->bSocketRecvPending = FALSE; |
| pLlcpSocket->bSocketSendPending = FALSE; |
| pLlcpSocket->bSocketListenPending = FALSE; |
| pLlcpSocket->bSocketDiscPending = FALSE; |
| pLlcpSocket->RemoteBusyConditionInfo = FALSE; |
| pLlcpSocket->ReceiverBusyCondition = FALSE; |
| pLlcpSocket->socket_VS = 0; |
| pLlcpSocket->socket_VSA = 0; |
| pLlcpSocket->socket_VR = 0; |
| pLlcpSocket->socket_VRA = 0; |
| |
| phFriNfc_LlcpTransport_Connectionless_Abort(pLlcpSocket); |
| |
| memset(&pLlcpSocket->sSocketOption, 0x00, sizeof(phFriNfc_LlcpTransport_sSocketOptions_t)); |
| |
| if (pLlcpSocket->sServiceName.buffer != NULL) { |
| phOsalNfc_FreeMemory(pLlcpSocket->sServiceName.buffer); |
| } |
| pLlcpSocket->sServiceName.buffer = NULL; |
| pLlcpSocket->sServiceName.length = 0; |
| |
| return NFCSTATUS_SUCCESS; |
| } |
| |
| /** |
| * \ingroup grp_fri_nfc |
| * \brief <b>Send data on a socket to a given destination SAP</b>. |
| * |
| * This function is used to write data on a socket to a given destination SAP. |
| * This function can only be called on a connectionless socket. |
| * |
| * |
| * \param[in] pLlcpSocket A pointer to a LlcpSocket created. |
| * \param[in] nSap The destination SAP. |
| * \param[in] psBuffer The buffer containing the data to send. |
| * \param[in] pSend_RspCb The callback to be called when the |
| * operation is completed. |
| * \param[in] pContext Upper layer context to be returned in |
| * the callback. |
| * |
| * \retval NFCSTATUS_SUCCESS Operation successful. |
| * \retval NFCSTATUS_INVALID_PARAMETER One or more of the supplied parameters |
| * could not be properly interpreted. |
| * \retval NFCSTATUS_PENDING Reception operation is in progress, |
| * pSend_RspCb will be called upon completion. |
| * \retval NFCSTATUS_INVALID_STATE The socket is not in a valid state, or not of |
| * a valid type to perform the requsted operation. |
| * \retval NFCSTATUS_NOT_INITIALISED Indicates stack is not yet initialized. |
| * \retval NFCSTATUS_SHUTDOWN Shutdown in progress. |
| * \retval NFCSTATUS_FAILED Operation failed. |
| */ |
| NFCSTATUS phFriNfc_LlcpTransport_Connectionless_SendTo(phFriNfc_LlcpTransport_Socket_t *pLlcpSocket, |
| uint8_t nSap, |
| phNfc_sData_t* psBuffer, |
| pphFriNfc_LlcpTransportSocketSendCb_t pSend_RspCb, |
| void* pContext) |
| { |
| NFCSTATUS status = NFCSTATUS_FAILED; |
| |
| /* Store send callback and context*/ |
| pLlcpSocket->pfSocketSend_Cb = pSend_RspCb; |
| pLlcpSocket->pSendContext = pContext; |
| |
| /* Test if a send is already pending at transport level */ |
| if(pLlcpSocket->psTransport->bSendPending == TRUE) |
| { |
| /* Save the request so it can be handled in phFriNfc_LlcpTransport_Connectionless_HandlePendingOperations() */ |
| pLlcpSocket->sSocketSendBuffer = *psBuffer; |
| pLlcpSocket->socket_dSap = nSap; |
| status = NFCSTATUS_PENDING; |
| } |
| else |
| { |
| /* Fill the psLlcpHeader stuture with the DSAP,PTYPE and the SSAP */ |
| pLlcpSocket->sLlcpHeader.dsap = nSap; |
| pLlcpSocket->sLlcpHeader.ptype = PHFRINFC_LLCP_PTYPE_UI; |
| pLlcpSocket->sLlcpHeader.ssap = pLlcpSocket->socket_sSap; |
| |
| /* Send to data to the approiate socket */ |
| status = phFriNfc_LlcpTransport_LinkSend(pLlcpSocket->psTransport, |
| &pLlcpSocket->sLlcpHeader, |
| NULL, |
| psBuffer, |
| phFriNfc_LlcpTransport_Connectionless_SendTo_CB, |
| pLlcpSocket); |
| } |
| |
| return status; |
| } |
| |
| |
| /** |
| * \ingroup grp_lib_nfc |
| * \brief <b>Read data on a socket and get the source SAP</b>. |
| * |
| * This function is the same as phLibNfc_Llcp_Recv, except that the callback includes |
| * the source SAP. This functions can only be called on a connectionless socket. |
| * |
| * |
| * \param[in] pLlcpSocket A pointer to a LlcpSocket created. |
| * \param[in] psBuffer The buffer receiving the data. |
| * \param[in] pRecv_RspCb The callback to be called when the |
| * operation is completed. |
| * \param[in] pContext Upper layer context to be returned in |
| * the callback. |
| * |
| * \retval NFCSTATUS_SUCCESS Operation successful. |
| * \retval NFCSTATUS_INVALID_PARAMETER One or more of the supplied parameters |
| * could not be properly interpreted. |
| * \retval NFCSTATUS_PENDING Reception operation is in progress, |
| * pRecv_RspCb will be called upon completion. |
| * \retval NFCSTATUS_INVALID_STATE The socket is not in a valid state, or not of |
| * a valid type to perform the requsted operation. |
| * \retval NFCSTATUS_NOT_INITIALISED Indicates stack is not yet initialized. |
| * \retval NFCSTATUS_SHUTDOWN Shutdown in progress. |
| * \retval NFCSTATUS_FAILED Operation failed. |
| */ |
| NFCSTATUS phLibNfc_LlcpTransport_Connectionless_RecvFrom(phFriNfc_LlcpTransport_Socket_t *pLlcpSocket, |
| phNfc_sData_t* psBuffer, |
| pphFriNfc_LlcpTransportSocketRecvFromCb_t pRecv_Cb, |
| void *pContext) |
| { |
| NFCSTATUS status = NFCSTATUS_PENDING; |
| uint8_t readIndex; |
| uint8_t ssap; |
| |
| if(pLlcpSocket->bSocketRecvPending) |
| { |
| status = PHNFCSTVAL(CID_FRI_NFC_LLCP_TRANSPORT, NFCSTATUS_REJECTED); |
| } |
| else |
| { |
| /* Check if pending packets in RW */ |
| if(pLlcpSocket->indexRwRead != pLlcpSocket->indexRwWrite) |
| { |
| readIndex = pLlcpSocket->indexRwRead % pLlcpSocket->localRW; |
| |
| /* Extract ssap and buffer from RW buffer */ |
| ssap = pLlcpSocket->sSocketRwBufferTable[readIndex].buffer[0]; |
| memcpy(psBuffer->buffer, |
| pLlcpSocket->sSocketRwBufferTable[readIndex].buffer + 1, |
| pLlcpSocket->sSocketRwBufferTable[readIndex].length); |
| psBuffer->length = pLlcpSocket->sSocketRwBufferTable[readIndex].length; |
| |
| /* Reset RW buffer length */ |
| pLlcpSocket->sSocketRwBufferTable[readIndex].length = 0; |
| |
| /* Update Value Rw Read Index */ |
| pLlcpSocket->indexRwRead++; |
| |
| /* call the recv callback */ |
| pRecv_Cb(pContext, ssap, NFCSTATUS_SUCCESS); |
| |
| status = NFCSTATUS_SUCCESS; |
| } |
| /* Otherwise, wait for a packet to come */ |
| else |
| { |
| /* Store the callback and context*/ |
| pLlcpSocket->pfSocketRecvFrom_Cb = pRecv_Cb; |
| pLlcpSocket->pRecvContext = pContext; |
| |
| /* Store the pointer to the receive buffer */ |
| pLlcpSocket->sSocketRecvBuffer = psBuffer; |
| pLlcpSocket->receivedLength = &psBuffer->length; |
| |
| /* Set RecvPending to TRUE */ |
| pLlcpSocket->bSocketRecvPending = TRUE; |
| } |
| } |
| return status; |
| } |
