/****************************************************************************** * * Copyright (C) 2010-2014 Broadcom Corporation * * 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. * ******************************************************************************/ /****************************************************************************** * * This file contains the main LLCP entry points * ******************************************************************************/ #include <string.h> #include "gki.h" #include "nfc_target.h" #include "bt_types.h" #include "llcp_api.h" #include "llcp_int.h" #include "llcp_defs.h" #include "nfc_int.h" #if (LLCP_DYNAMIC_MEMORY == FALSE) tLLCP_CB llcp_cb; #endif /******************************************************************************* ** ** Function llcp_init ** ** Description This function is called once at startup to initialize ** all the LLCP structures ** ** Returns void ** *******************************************************************************/ void llcp_init (void) { UINT32 pool_count; memset (&llcp_cb, 0, sizeof (tLLCP_CB)); llcp_cb.trace_level = LLCP_INITIAL_TRACE_LEVEL; LLCP_TRACE_DEBUG0 ("LLCP - llcp_init ()"); llcp_cb.lcb.local_link_miu = (LLCP_MIU <= LLCP_MAX_MIU ? LLCP_MIU : LLCP_MAX_MIU); llcp_cb.lcb.local_opt = LLCP_OPT_VALUE; llcp_cb.lcb.local_wt = LLCP_WAITING_TIME; llcp_cb.lcb.local_lto = LLCP_LTO_VALUE; llcp_cb.lcb.inact_timeout_init = LLCP_INIT_INACTIVITY_TIMEOUT; llcp_cb.lcb.inact_timeout_target = LLCP_TARGET_INACTIVITY_TIMEOUT; llcp_cb.lcb.symm_delay = LLCP_DELAY_RESP_TIME; llcp_cb.lcb.data_link_timeout = LLCP_DATA_LINK_CONNECTION_TOUT; llcp_cb.lcb.delay_first_pdu_timeout = LLCP_DELAY_TIME_TO_SEND_FIRST_PDU; llcp_cb.lcb.wks = LLCP_WKS_MASK_LM; /* total number of buffers for LLCP */ pool_count = GKI_poolcount (LLCP_POOL_ID); /* number of buffers for receiving data */ llcp_cb.num_rx_buff = (pool_count * LLCP_RX_BUFF_RATIO) / 100; /* rx congestion start/end threshold */ llcp_cb.overall_rx_congest_start = (UINT8) ((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_START) / 100); llcp_cb.overall_rx_congest_end = (UINT8) ((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_END) / 100); /* max number of buffers for receiving data on logical data link */ llcp_cb.max_num_ll_rx_buff = (UINT8) ((llcp_cb.num_rx_buff * LLCP_LL_RX_BUFF_LIMIT) / 100); LLCP_TRACE_DEBUG4 ("num_rx_buff = %d, rx_congest_start = %d, rx_congest_end = %d, max_num_ll_rx_buff = %d", llcp_cb.num_rx_buff, llcp_cb.overall_rx_congest_start, llcp_cb.overall_rx_congest_end, llcp_cb.max_num_ll_rx_buff); /* max number of buffers for transmitting data */ llcp_cb.max_num_tx_buff = (UINT8) (pool_count - llcp_cb.num_rx_buff); /* max number of buffers for transmitting data on logical data link */ llcp_cb.max_num_ll_tx_buff = (UINT8) ((llcp_cb.max_num_tx_buff * LLCP_LL_TX_BUFF_LIMIT) / 100); LLCP_TRACE_DEBUG2 ("max_num_tx_buff = %d, max_num_ll_tx_buff = %d", llcp_cb.max_num_tx_buff, llcp_cb.max_num_ll_tx_buff); llcp_cb.ll_tx_uncongest_ntf_start_sap = LLCP_SAP_SDP + 1; LLCP_RegisterServer (LLCP_SAP_SDP, LLCP_LINK_TYPE_DATA_LINK_CONNECTION, "urn:nfc:sn:sdp", llcp_sdp_proc_data); } /******************************************************************************* ** ** Function llcp_cleanup ** ** Description This function is called once at closing to clean up ** ** Returns void ** *******************************************************************************/ void llcp_cleanup (void) { UINT8 sap; tLLCP_APP_CB *p_app_cb; LLCP_TRACE_DEBUG0 ("LLCP - llcp_cleanup ()"); for (sap = LLCP_SAP_SDP; sap < LLCP_NUM_SAPS; sap++) { p_app_cb = llcp_util_get_app_cb (sap); if ( (p_app_cb) &&(p_app_cb->p_app_cback) ) { LLCP_Deregister (sap); } } nfc_stop_quick_timer (&llcp_cb.lcb.inact_timer); nfc_stop_quick_timer (&llcp_cb.lcb.timer); } /******************************************************************************* ** ** Function llcp_process_timeout ** ** Description This function is called when an LLCP-related timeout occurs ** ** Returns void ** *******************************************************************************/ void llcp_process_timeout (TIMER_LIST_ENT *p_tle) { UINT8 reason; LLCP_TRACE_DEBUG1 ("llcp_process_timeout: event=%d", p_tle->event); switch (p_tle->event) { case NFC_TTYPE_LLCP_LINK_MANAGER: /* Link timeout or Symm timeout */ llcp_link_process_link_timeout (); break; case NFC_TTYPE_LLCP_LINK_INACT: /* inactivity timeout */ llcp_link_deactivate (LLCP_LINK_LOCAL_INITIATED); break; case NFC_TTYPE_LLCP_DATA_LINK: reason = LLCP_SAP_DISCONNECT_REASON_TIMEOUT; llcp_dlsm_execute ((tLLCP_DLCB *) (p_tle->param), LLCP_DLC_EVENT_TIMEOUT, &reason); break; case NFC_TTYPE_LLCP_DELAY_FIRST_PDU: llcp_link_check_send_data (); break; default: break; } } /******************************************************************************* ** ** Function LLCP_SetTraceLevel ** ** Description This function sets the trace level for LLCP. If called with ** a value of 0xFF, it simply returns the current trace level. ** ** Returns The new or current trace level ** *******************************************************************************/ UINT8 LLCP_SetTraceLevel (UINT8 new_level) { if (new_level != 0xFF) llcp_cb.trace_level = new_level; return (llcp_cb.trace_level); }