| /****************************************************************************** |
| * |
| * 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); |
| } |