The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Evan Chu | e9629ba | 2014-01-31 11:18:47 -0500 | [diff] [blame] | 3 | * Copyright (C) 2010-2014 Broadcom Corporation |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 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 | |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 19 | /****************************************************************************** |
| 20 | * |
| 21 | * This file contains the main LLCP entry points |
| 22 | * |
| 23 | ******************************************************************************/ |
| 24 | |
| 25 | #include <string.h> |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 26 | #include "bt_types.h" |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 27 | #include "gki.h" |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 28 | #include "llcp_api.h" |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 29 | #include "llcp_defs.h" |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 30 | #include "llcp_int.h" |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 31 | #include "nfc_int.h" |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 32 | #include "nfc_target.h" |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 33 | |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 34 | tLLCP_CB llcp_cb; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 35 | |
| 36 | /******************************************************************************* |
| 37 | ** |
| 38 | ** Function llcp_init |
| 39 | ** |
| 40 | ** Description This function is called once at startup to initialize |
| 41 | ** all the LLCP structures |
| 42 | ** |
| 43 | ** Returns void |
| 44 | ** |
| 45 | *******************************************************************************/ |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 46 | void llcp_init(void) { |
| 47 | uint32_t pool_count; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 48 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 49 | memset(&llcp_cb, 0, sizeof(tLLCP_CB)); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 50 | |
Ruchi Kandoi | 6767aec | 2017-09-26 09:46:26 -0700 | [diff] [blame^] | 51 | DLOG_IF(INFO, nfc_debug_enabled) << __func__; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 52 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 53 | llcp_cb.lcb.local_link_miu = |
| 54 | (LLCP_MIU <= LLCP_MAX_MIU ? LLCP_MIU : LLCP_MAX_MIU); |
| 55 | llcp_cb.lcb.local_opt = LLCP_OPT_VALUE; |
| 56 | llcp_cb.lcb.local_wt = LLCP_WAITING_TIME; |
| 57 | llcp_cb.lcb.local_lto = LLCP_LTO_VALUE; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 58 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 59 | llcp_cb.lcb.inact_timeout_init = LLCP_INIT_INACTIVITY_TIMEOUT; |
| 60 | llcp_cb.lcb.inact_timeout_target = LLCP_TARGET_INACTIVITY_TIMEOUT; |
| 61 | llcp_cb.lcb.symm_delay = LLCP_DELAY_RESP_TIME; |
| 62 | llcp_cb.lcb.data_link_timeout = LLCP_DATA_LINK_CONNECTION_TOUT; |
| 63 | llcp_cb.lcb.delay_first_pdu_timeout = LLCP_DELAY_TIME_TO_SEND_FIRST_PDU; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 64 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 65 | llcp_cb.lcb.wks = LLCP_WKS_MASK_LM; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 66 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 67 | /* total number of buffers for LLCP */ |
| 68 | pool_count = GKI_poolcount(LLCP_POOL_ID); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 69 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 70 | /* number of buffers for receiving data */ |
| 71 | llcp_cb.num_rx_buff = (pool_count * LLCP_RX_BUFF_RATIO) / 100; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 72 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 73 | /* rx congestion start/end threshold */ |
| 74 | llcp_cb.overall_rx_congest_start = |
| 75 | (uint8_t)((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_START) / 100); |
| 76 | llcp_cb.overall_rx_congest_end = |
| 77 | (uint8_t)((llcp_cb.num_rx_buff * LLCP_RX_CONGEST_END) / 100); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 78 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 79 | /* max number of buffers for receiving data on logical data link */ |
| 80 | llcp_cb.max_num_ll_rx_buff = |
| 81 | (uint8_t)((llcp_cb.num_rx_buff * LLCP_LL_RX_BUFF_LIMIT) / 100); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 82 | |
Ruchi Kandoi | 6767aec | 2017-09-26 09:46:26 -0700 | [diff] [blame^] | 83 | DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf( |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 84 | "num_rx_buff = %d, rx_congest_start = %d, rx_congest_end = %d, " |
| 85 | "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); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 88 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 89 | /* max number of buffers for transmitting data */ |
| 90 | llcp_cb.max_num_tx_buff = (uint8_t)(pool_count - llcp_cb.num_rx_buff); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 91 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 92 | /* max number of buffers for transmitting data on logical data link */ |
| 93 | llcp_cb.max_num_ll_tx_buff = |
| 94 | (uint8_t)((llcp_cb.max_num_tx_buff * LLCP_LL_TX_BUFF_LIMIT) / 100); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 95 | |
Ruchi Kandoi | 6767aec | 2017-09-26 09:46:26 -0700 | [diff] [blame^] | 96 | DLOG_IF(INFO, nfc_debug_enabled) |
| 97 | << StringPrintf("max_num_tx_buff = %d, max_num_ll_tx_buff = %d", |
| 98 | llcp_cb.max_num_tx_buff, llcp_cb.max_num_ll_tx_buff); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 99 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 100 | llcp_cb.ll_tx_uncongest_ntf_start_sap = LLCP_SAP_SDP + 1; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 101 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 102 | LLCP_RegisterServer(LLCP_SAP_SDP, LLCP_LINK_TYPE_DATA_LINK_CONNECTION, |
| 103 | "urn:nfc:sn:sdp", llcp_sdp_proc_data); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | /******************************************************************************* |
| 107 | ** |
| 108 | ** Function llcp_cleanup |
| 109 | ** |
| 110 | ** Description This function is called once at closing to clean up |
| 111 | ** |
| 112 | ** Returns void |
| 113 | ** |
| 114 | *******************************************************************************/ |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 115 | void llcp_cleanup(void) { |
| 116 | uint8_t sap; |
| 117 | tLLCP_APP_CB* p_app_cb; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 118 | |
Ruchi Kandoi | 6767aec | 2017-09-26 09:46:26 -0700 | [diff] [blame^] | 119 | DLOG_IF(INFO, nfc_debug_enabled) << __func__; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 120 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 121 | for (sap = LLCP_SAP_SDP; sap < LLCP_NUM_SAPS; sap++) { |
| 122 | p_app_cb = llcp_util_get_app_cb(sap); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 123 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 124 | if ((p_app_cb) && (p_app_cb->p_app_cback)) { |
| 125 | LLCP_Deregister(sap); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 126 | } |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 127 | } |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 128 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 129 | nfc_stop_quick_timer(&llcp_cb.lcb.inact_timer); |
| 130 | nfc_stop_quick_timer(&llcp_cb.lcb.timer); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | /******************************************************************************* |
| 134 | ** |
| 135 | ** Function llcp_process_timeout |
| 136 | ** |
| 137 | ** Description This function is called when an LLCP-related timeout occurs |
| 138 | ** |
| 139 | ** Returns void |
| 140 | ** |
| 141 | *******************************************************************************/ |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 142 | void llcp_process_timeout(TIMER_LIST_ENT* p_tle) { |
| 143 | uint8_t reason; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 144 | |
Ruchi Kandoi | 6767aec | 2017-09-26 09:46:26 -0700 | [diff] [blame^] | 145 | DLOG_IF(INFO, nfc_debug_enabled) |
| 146 | << StringPrintf("llcp_process_timeout: event=%d", p_tle->event); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 147 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 148 | switch (p_tle->event) { |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 149 | case NFC_TTYPE_LLCP_LINK_MANAGER: |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 150 | /* Link timeout or Symm timeout */ |
| 151 | llcp_link_process_link_timeout(); |
| 152 | break; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 153 | |
| 154 | case NFC_TTYPE_LLCP_LINK_INACT: |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 155 | /* inactivity timeout */ |
| 156 | llcp_link_deactivate(LLCP_LINK_LOCAL_INITIATED); |
| 157 | break; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 158 | |
| 159 | case NFC_TTYPE_LLCP_DATA_LINK: |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 160 | reason = LLCP_SAP_DISCONNECT_REASON_TIMEOUT; |
| 161 | llcp_dlsm_execute((tLLCP_DLCB*)(p_tle->param), LLCP_DLC_EVENT_TIMEOUT, |
| 162 | &reason); |
| 163 | break; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 164 | |
| 165 | case NFC_TTYPE_LLCP_DELAY_FIRST_PDU: |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 166 | llcp_link_check_send_data(); |
| 167 | break; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 168 | |
| 169 | default: |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 170 | break; |
| 171 | } |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | /******************************************************************************* |
| 175 | ** |
| 176 | ** Function LLCP_SetTraceLevel |
| 177 | ** |
| 178 | ** Description This function sets the trace level for LLCP. If called with |
| 179 | ** a value of 0xFF, it simply returns the current trace level. |
| 180 | ** |
| 181 | ** Returns The new or current trace level |
| 182 | ** |
| 183 | *******************************************************************************/ |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 184 | uint8_t LLCP_SetTraceLevel(uint8_t new_level) { |
| 185 | if (new_level != 0xFF) llcp_cb.trace_level = new_level; |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 186 | |
Ruchi Kandoi | 6fca02d | 2017-01-30 14:28:16 -0800 | [diff] [blame] | 187 | return (llcp_cb.trace_level); |
The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 188 | } |