1 /****************************************************************************** 2 * 3 * Copyright (C) 2010-2014 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 20 /****************************************************************************** 21 * 22 * This file contains the main LLCP entry points 23 * 24 ******************************************************************************/ 25 26 #include <string.h> 27 #include "gki.h" 28 #include "nfc_target.h" 29 #include "bt_types.h" 30 #include "llcp_api.h" 31 #include "llcp_int.h" 32 #include "llcp_defs.h" 33 #include "nfc_int.h" 34 35 #if (LLCP_DYNAMIC_MEMORY == FALSE) 36 tLLCP_CB llcp_cb; 37 #endif 38 39 /******************************************************************************* 40 ** 41 ** Function llcp_init 42 ** 43 ** Description This function is called once at startup to initialize 44 ** all the LLCP structures 45 ** 46 ** Returns void 47 ** 48 *******************************************************************************/ 49 void llcp_init (void) 50 { 51 UINT32 pool_count; 52 53 memset (&llcp_cb, 0, sizeof (tLLCP_CB)); 54 55 llcp_cb.trace_level = LLCP_INITIAL_TRACE_LEVEL; 56 57 LLCP_TRACE_DEBUG0 ("LLCP - llcp_init ()"); 58 59 llcp_cb.lcb.local_link_miu = (LLCP_MIU <= LLCP_MAX_MIU ? LLCP_MIU : LLCP_MAX_MIU); 60 llcp_cb.lcb.local_opt = LLCP_OPT_VALUE; 61 llcp_cb.lcb.local_wt = LLCP_WAITING_TIME; 62 llcp_cb.lcb.local_lto = LLCP_LTO_VALUE; 63 64 llcp_cb.lcb.inact_timeout_init = LLCP_INIT_INACTIVITY_TIMEOUT; 65 llcp_cb.lcb.inact_timeout_target = LLCP_TARGET_INACTIVITY_TIMEOUT; 66 llcp_cb.lcb.symm_delay = LLCP_DELAY_RESP_TIME; 67 llcp_cb.lcb.data_link_timeout = LLCP_DATA_LINK_CONNECTION_TOUT; 68 llcp_cb.lcb.delay_first_pdu_timeout = LLCP_DELAY_TIME_TO_SEND_FIRST_PDU; 69 70 llcp_cb.lcb.wks = LLCP_WKS_MASK_LM; 71 72 /* total number of buffers for LLCP */ 73 pool_count = GKI_poolcount (LLCP_POOL_ID); 74 75 /* number of buffers for receiving data */ 76 llcp_cb.num_rx_buff = (pool_count * LLCP_RX_BUFF_RATIO) / 100; 77 78 /* rx congestion start/end threshold */ 79 llcp_cb.overall_rx_congest_start = (UINT8) ((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_START) / 100); 80 llcp_cb.overall_rx_congest_end = (UINT8) ((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_END) / 100); 81 82 /* max number of buffers for receiving data on logical data link */ 83 llcp_cb.max_num_ll_rx_buff = (UINT8) ((llcp_cb.num_rx_buff * LLCP_LL_RX_BUFF_LIMIT) / 100); 84 85 LLCP_TRACE_DEBUG4 ("num_rx_buff = %d, rx_congest_start = %d, rx_congest_end = %d, max_num_ll_rx_buff = %d", 86 llcp_cb.num_rx_buff, llcp_cb.overall_rx_congest_start, 87 llcp_cb.overall_rx_congest_end, llcp_cb.max_num_ll_rx_buff); 88 89 /* max number of buffers for transmitting data */ 90 llcp_cb.max_num_tx_buff = (UINT8) (pool_count - llcp_cb.num_rx_buff); 91 92 /* max number of buffers for transmitting data on logical data link */ 93 llcp_cb.max_num_ll_tx_buff = (UINT8) ((llcp_cb.max_num_tx_buff * LLCP_LL_TX_BUFF_LIMIT) / 100); 94 95 LLCP_TRACE_DEBUG2 ("max_num_tx_buff = %d, max_num_ll_tx_buff = %d", 96 llcp_cb.max_num_tx_buff, llcp_cb.max_num_ll_tx_buff); 97 98 llcp_cb.ll_tx_uncongest_ntf_start_sap = LLCP_SAP_SDP + 1; 99 100 LLCP_RegisterServer (LLCP_SAP_SDP, LLCP_LINK_TYPE_DATA_LINK_CONNECTION, "urn:nfc:sn:sdp", llcp_sdp_proc_data); 101 } 102 103 /******************************************************************************* 104 ** 105 ** Function llcp_cleanup 106 ** 107 ** Description This function is called once at closing to clean up 108 ** 109 ** Returns void 110 ** 111 *******************************************************************************/ 112 void llcp_cleanup (void) 113 { 114 UINT8 sap; 115 tLLCP_APP_CB *p_app_cb; 116 117 LLCP_TRACE_DEBUG0 ("LLCP - llcp_cleanup ()"); 118 119 for (sap = LLCP_SAP_SDP; sap < LLCP_NUM_SAPS; sap++) 120 { 121 p_app_cb = llcp_util_get_app_cb (sap); 122 123 if ( (p_app_cb) 124 &&(p_app_cb->p_app_cback) ) 125 { 126 LLCP_Deregister (sap); 127 } 128 } 129 130 nfc_stop_quick_timer (&llcp_cb.lcb.inact_timer); 131 nfc_stop_quick_timer (&llcp_cb.lcb.timer); 132 } 133 134 /******************************************************************************* 135 ** 136 ** Function llcp_process_timeout 137 ** 138 ** Description This function is called when an LLCP-related timeout occurs 139 ** 140 ** Returns void 141 ** 142 *******************************************************************************/ 143 void llcp_process_timeout (TIMER_LIST_ENT *p_tle) 144 { 145 UINT8 reason; 146 147 LLCP_TRACE_DEBUG1 ("llcp_process_timeout: event=%d", p_tle->event); 148 149 switch (p_tle->event) 150 { 151 case NFC_TTYPE_LLCP_LINK_MANAGER: 152 /* Link timeout or Symm timeout */ 153 llcp_link_process_link_timeout (); 154 break; 155 156 case NFC_TTYPE_LLCP_LINK_INACT: 157 /* inactivity timeout */ 158 llcp_link_deactivate (LLCP_LINK_LOCAL_INITIATED); 159 break; 160 161 case NFC_TTYPE_LLCP_DATA_LINK: 162 reason = LLCP_SAP_DISCONNECT_REASON_TIMEOUT; 163 llcp_dlsm_execute ((tLLCP_DLCB *) (p_tle->param), LLCP_DLC_EVENT_TIMEOUT, &reason); 164 break; 165 166 case NFC_TTYPE_LLCP_DELAY_FIRST_PDU: 167 llcp_link_check_send_data (); 168 break; 169 170 default: 171 break; 172 } 173 } 174 175 /******************************************************************************* 176 ** 177 ** Function LLCP_SetTraceLevel 178 ** 179 ** Description This function sets the trace level for LLCP. If called with 180 ** a value of 0xFF, it simply returns the current trace level. 181 ** 182 ** Returns The new or current trace level 183 ** 184 *******************************************************************************/ 185 UINT8 LLCP_SetTraceLevel (UINT8 new_level) 186 { 187 if (new_level != 0xFF) 188 llcp_cb.trace_level = new_level; 189 190 return (llcp_cb.trace_level); 191 } 192
