1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2012 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 * This is the main implementation file for the BTA device manager. 22 * 23 ******************************************************************************/ 24 25 #include "bta_api.h" 26 #include "bta_dm_int.h" 27 #include "bta_sys.h" 28 29 /***************************************************************************** 30 * Constants and types 31 ****************************************************************************/ 32 33 tBTA_DM_CB bta_dm_cb; 34 tBTA_DM_SEARCH_CB bta_dm_search_cb; 35 tBTA_DM_DI_CB bta_dm_di_cb; 36 37 #define BTA_DM_NUM_ACTIONS (BTA_DM_MAX_EVT & 0x00ff) 38 39 /* type for action functions */ 40 typedef void (*tBTA_DM_ACTION)(tBTA_DM_MSG* p_data); 41 42 /* action function list */ 43 const tBTA_DM_ACTION bta_dm_action[] = { 44 45 /* device manager local device API events */ 46 bta_dm_enable, /* 0 BTA_DM_API_ENABLE_EVT */ 47 bta_dm_disable, /* 1 BTA_DM_API_DISABLE_EVT */ 48 bta_dm_set_dev_name, /* 2 BTA_DM_API_SET_NAME_EVT */ 49 bta_dm_set_visibility, /* 3 BTA_DM_API_SET_VISIBILITY_EVT */ 50 bta_dm_acl_change, /* 8 BTA_DM_ACL_CHANGE_EVT */ 51 bta_dm_add_device, /* 9 BTA_DM_API_ADD_DEVICE_EVT */ 52 bta_dm_close_acl, /* 10 BTA_DM_API_ADD_DEVICE_EVT */ 53 54 /* security API events */ 55 bta_dm_bond, /* 11 BTA_DM_API_BOND_EVT */ 56 bta_dm_bond_cancel, /* 12 BTA_DM_API_BOND_CANCEL_EVT */ 57 bta_dm_pin_reply, /* 13 BTA_DM_API_PIN_REPLY_EVT */ 58 59 /* power manger events */ 60 bta_dm_pm_btm_status, /* 16 BTA_DM_PM_BTM_STATUS_EVT */ 61 bta_dm_pm_timer, /* 17 BTA_DM_PM_TIMER_EVT*/ 62 63 /* simple pairing events */ 64 bta_dm_confirm, /* 18 BTA_DM_API_CONFIRM_EVT */ 65 66 bta_dm_set_encryption, /* BTA_DM_API_SET_ENCRYPTION_EVT */ 67 68 /* out of band pairing events */ 69 bta_dm_loc_oob, /* 20 BTA_DM_API_LOC_OOB_EVT */ 70 bta_dm_ci_io_req_act, /* 21 BTA_DM_CI_IO_REQ_EVT */ 71 bta_dm_ci_rmt_oob_act, /* 22 BTA_DM_CI_RMT_OOB_EVT */ 72 73 bta_dm_add_blekey, /* BTA_DM_API_ADD_BLEKEY_EVT */ 74 bta_dm_add_ble_device, /* BTA_DM_API_ADD_BLEDEVICE_EVT */ 75 bta_dm_ble_passkey_reply, /* BTA_DM_API_BLE_PASSKEY_REPLY_EVT */ 76 bta_dm_ble_confirm_reply, /* BTA_DM_API_BLE_CONFIRM_REPLY_EVT */ 77 bta_dm_security_grant, bta_dm_ble_set_bg_conn_type, 78 bta_dm_ble_set_conn_params, /* BTA_DM_API_BLE_CONN_PARAM_EVT */ 79 bta_dm_ble_set_conn_scan_params, /* BTA_DM_API_BLE_CONN_SCAN_PARAM_EVT */ 80 bta_dm_ble_observe, 81 bta_dm_ble_update_conn_params, /* BTA_DM_API_UPDATE_CONN_PARAM_EVT */ 82 #if (BLE_PRIVACY_SPT == TRUE) 83 bta_dm_ble_config_local_privacy, /* BTA_DM_API_LOCAL_PRIVACY_EVT */ 84 #endif 85 bta_dm_ble_set_data_length, /* BTA_DM_API_SET_DATA_LENGTH_EVT */ 86 bta_dm_ble_get_energy_info, /* BTA_DM_API_BLE_ENERGY_INFO_EVT */ 87 88 bta_dm_enable_test_mode, /* BTA_DM_API_ENABLE_TEST_MODE_EVT */ 89 bta_dm_disable_test_mode, /* BTA_DM_API_DISABLE_TEST_MODE_EVT */ 90 bta_dm_execute_callback, /* BTA_DM_API_EXECUTE_CBACK_EVT */ 91 92 bta_dm_remove_all_acl, /* BTA_DM_API_REMOVE_ALL_ACL_EVT */ 93 bta_dm_remove_device, /* BTA_DM_API_REMOVE_DEVICE_EVT */ 94 }; 95 96 /* state machine action enumeration list */ 97 enum { 98 BTA_DM_API_SEARCH, /* 0 bta_dm_search_start */ 99 BTA_DM_API_SEARCH_CANCEL, /* 1 bta_dm_search_cancel */ 100 BTA_DM_API_DISCOVER, /* 2 bta_dm_discover */ 101 BTA_DM_INQUIRY_CMPL, /* 3 bta_dm_inq_cmpl */ 102 BTA_DM_REMT_NAME, /* 4 bta_dm_rmt_name */ 103 BTA_DM_SDP_RESULT, /* 5 bta_dm_sdp_result */ 104 BTA_DM_SEARCH_CMPL, /* 6 bta_dm_search_cmpl*/ 105 BTA_DM_FREE_SDP_DB, /* 7 bta_dm_free_sdp_db */ 106 BTA_DM_DISC_RESULT, /* 8 bta_dm_disc_result */ 107 BTA_DM_SEARCH_RESULT, /* 9 bta_dm_search_result */ 108 BTA_DM_QUEUE_SEARCH, /* 10 bta_dm_queue_search */ 109 BTA_DM_QUEUE_DISC, /* 11 bta_dm_queue_disc */ 110 BTA_DM_SEARCH_CLEAR_QUEUE, /* 12 bta_dm_search_clear_queue */ 111 BTA_DM_SEARCH_CANCEL_CMPL, /* 13 bta_dm_search_cancel_cmpl */ 112 BTA_DM_SEARCH_CANCEL_NOTIFY, /* 14 bta_dm_search_cancel_notify */ 113 BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, /* 15 bta_dm_search_cancel_transac_cmpl */ 114 BTA_DM_DISC_RMT_NAME, /* 16 bta_dm_disc_rmt_name */ 115 BTA_DM_API_DI_DISCOVER, /* 17 bta_dm_di_disc */ 116 BTA_DM_CLOSE_GATT_CONN, /* 18 bta_dm_close_gatt_conn */ 117 BTA_DM_SEARCH_NUM_ACTIONS /* 19 */ 118 }; 119 120 /* action function list */ 121 const tBTA_DM_ACTION bta_dm_search_action[] = { 122 123 bta_dm_search_start, /* 0 BTA_DM_API_SEARCH */ 124 bta_dm_search_cancel, /* 1 BTA_DM_API_SEARCH_CANCEL */ 125 bta_dm_discover, /* 2 BTA_DM_API_DISCOVER */ 126 bta_dm_inq_cmpl, /* 3 BTA_DM_INQUIRY_CMPL */ 127 bta_dm_rmt_name, /* 4 BTA_DM_REMT_NAME */ 128 bta_dm_sdp_result, /* 5 BTA_DM_SDP_RESULT */ 129 bta_dm_search_cmpl, /* 6 BTA_DM_SEARCH_CMPL */ 130 bta_dm_free_sdp_db, /* 7 BTA_DM_FREE_SDP_DB */ 131 bta_dm_disc_result, /* 8 BTA_DM_DISC_RESULT */ 132 bta_dm_search_result, /* 9 BTA_DM_SEARCH_RESULT */ 133 bta_dm_queue_search, /* 10 BTA_DM_QUEUE_SEARCH */ 134 bta_dm_queue_disc, /* 11 BTA_DM_QUEUE_DISC */ 135 bta_dm_search_clear_queue, /* 12 BTA_DM_SEARCH_CLEAR_QUEUE */ 136 bta_dm_search_cancel_cmpl, /* 13 BTA_DM_SEARCH_CANCEL_CMPL */ 137 bta_dm_search_cancel_notify, /* 14 BTA_DM_SEARCH_CANCEL_NOTIFY */ 138 bta_dm_search_cancel_transac_cmpl, /* 15 BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL 139 */ 140 bta_dm_disc_rmt_name, /* 16 BTA_DM_DISC_RMT_NAME */ 141 bta_dm_di_disc, /* 17 BTA_DM_API_DI_DISCOVER */ 142 bta_dm_close_gatt_conn}; 143 144 #define BTA_DM_SEARCH_IGNORE BTA_DM_SEARCH_NUM_ACTIONS 145 /* state table information */ 146 #define BTA_DM_SEARCH_ACTIONS 2 /* number of actions */ 147 #define BTA_DM_SEARCH_NEXT_STATE 2 /* position of next state */ 148 #define BTA_DM_SEARCH_NUM_COLS 3 /* number of columns in state tables */ 149 150 /* state table for listen state */ 151 const uint8_t bta_dm_search_idle_st_table[][BTA_DM_SEARCH_NUM_COLS] = { 152 153 /* Event Action 1 154 Action 2 Next State */ 155 /* API_SEARCH */ {BTA_DM_API_SEARCH, BTA_DM_SEARCH_IGNORE, 156 BTA_DM_SEARCH_ACTIVE}, 157 /* API_SEARCH_CANCEL */ {BTA_DM_SEARCH_CANCEL_NOTIFY, BTA_DM_SEARCH_IGNORE, 158 BTA_DM_SEARCH_IDLE}, 159 /* API_SEARCH_DISC */ {BTA_DM_API_DISCOVER, BTA_DM_SEARCH_IGNORE, 160 BTA_DM_DISCOVER_ACTIVE}, 161 /* INQUIRY_CMPL */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 162 BTA_DM_SEARCH_IDLE}, 163 /* REMT_NAME_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 164 BTA_DM_SEARCH_IDLE}, 165 /* SDP_RESULT_EVT */ {BTA_DM_FREE_SDP_DB, BTA_DM_SEARCH_IGNORE, 166 BTA_DM_SEARCH_IDLE}, 167 /* SEARCH_CMPL_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 168 BTA_DM_SEARCH_IDLE}, 169 /* DISCV_RES_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 170 BTA_DM_SEARCH_IDLE}, 171 /* API_DI_DISCOVER_EVT */ {BTA_DM_API_DI_DISCOVER, BTA_DM_SEARCH_IGNORE, 172 BTA_DM_SEARCH_ACTIVE}, 173 /* DISC_CLOSE_TOUT_EVT */ 174 {BTA_DM_CLOSE_GATT_CONN, BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IDLE}}; 175 const uint8_t bta_dm_search_search_active_st_table[][BTA_DM_SEARCH_NUM_COLS] = { 176 177 /* Event Action 1 178 Action 2 Next State */ 179 /* API_SEARCH */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 180 BTA_DM_SEARCH_ACTIVE}, 181 /* API_SEARCH_CANCEL */ {BTA_DM_API_SEARCH_CANCEL, BTA_DM_SEARCH_IGNORE, 182 BTA_DM_SEARCH_CANCELLING}, 183 /* API_SEARCH_DISC */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 184 BTA_DM_SEARCH_ACTIVE}, 185 /* INQUIRY_CMPL */ {BTA_DM_INQUIRY_CMPL, BTA_DM_SEARCH_IGNORE, 186 BTA_DM_SEARCH_ACTIVE}, 187 /* REMT_NAME_EVT */ {BTA_DM_REMT_NAME, BTA_DM_SEARCH_IGNORE, 188 BTA_DM_SEARCH_ACTIVE}, 189 /* SDP_RESULT_EVT */ {BTA_DM_SDP_RESULT, BTA_DM_SEARCH_IGNORE, 190 BTA_DM_SEARCH_ACTIVE}, 191 /* SEARCH_CMPL_EVT */ {BTA_DM_SEARCH_CMPL, BTA_DM_SEARCH_IGNORE, 192 BTA_DM_SEARCH_IDLE}, 193 /* DISCV_RES_EVT */ {BTA_DM_SEARCH_RESULT, BTA_DM_SEARCH_IGNORE, 194 BTA_DM_SEARCH_ACTIVE}, 195 /* API_DI_DISCOVER_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 196 BTA_DM_SEARCH_ACTIVE}, 197 /* DISC_CLOSE_TOUT_EVT */ 198 {BTA_DM_CLOSE_GATT_CONN, BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_ACTIVE} 199 200 }; 201 202 const uint8_t 203 bta_dm_search_search_cancelling_st_table[][BTA_DM_SEARCH_NUM_COLS] = { 204 205 /* Event Action 1 206 Action 2 Next State */ 207 /* API_SEARCH */ {BTA_DM_QUEUE_SEARCH, BTA_DM_SEARCH_IGNORE, 208 BTA_DM_SEARCH_CANCELLING}, 209 /* API_SEARCH_CANCEL */ {BTA_DM_SEARCH_CLEAR_QUEUE, 210 BTA_DM_SEARCH_CANCEL_NOTIFY, 211 BTA_DM_SEARCH_CANCELLING}, 212 /* API_SEARCH_DISC */ {BTA_DM_QUEUE_DISC, BTA_DM_SEARCH_IGNORE, 213 BTA_DM_SEARCH_CANCELLING}, 214 /* INQUIRY_CMPL */ {BTA_DM_SEARCH_CANCEL_CMPL, BTA_DM_SEARCH_IGNORE, 215 BTA_DM_SEARCH_IDLE}, 216 /* REMT_NAME_EVT */ {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, 217 BTA_DM_SEARCH_CANCEL_CMPL, BTA_DM_SEARCH_IDLE}, 218 /* SDP_RESULT_EVT */ {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, 219 BTA_DM_SEARCH_CANCEL_CMPL, BTA_DM_SEARCH_IDLE}, 220 /* SEARCH_CMPL_EVT */ {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, 221 BTA_DM_SEARCH_CANCEL_CMPL, BTA_DM_SEARCH_IDLE}, 222 /* DISCV_RES_EVT */ {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, 223 BTA_DM_SEARCH_CANCEL_CMPL, BTA_DM_SEARCH_IDLE}, 224 /* API_DI_DISCOVER_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 225 BTA_DM_SEARCH_CANCELLING}, 226 /* DISC_CLOSE_TOUT_EVT */ 227 {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_CANCELLING}}; 228 229 const uint8_t bta_dm_search_disc_active_st_table[][BTA_DM_SEARCH_NUM_COLS] = { 230 231 /* Event Action 1 232 Action 2 Next State */ 233 /* API_SEARCH */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 234 BTA_DM_DISCOVER_ACTIVE}, 235 /* API_SEARCH_CANCEL */ {BTA_DM_SEARCH_CANCEL_NOTIFY, BTA_DM_SEARCH_IGNORE, 236 BTA_DM_SEARCH_CANCELLING}, 237 /* API_SEARCH_DISC */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 238 BTA_DM_DISCOVER_ACTIVE}, 239 /* INQUIRY_CMPL */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 240 BTA_DM_DISCOVER_ACTIVE}, 241 /* REMT_NAME_EVT */ {BTA_DM_DISC_RMT_NAME, BTA_DM_SEARCH_IGNORE, 242 BTA_DM_DISCOVER_ACTIVE}, 243 /* SDP_RESULT_EVT */ {BTA_DM_SDP_RESULT, BTA_DM_SEARCH_IGNORE, 244 BTA_DM_DISCOVER_ACTIVE}, 245 /* SEARCH_CMPL_EVT */ {BTA_DM_SEARCH_CMPL, BTA_DM_SEARCH_IGNORE, 246 BTA_DM_SEARCH_IDLE}, 247 /* DISCV_RES_EVT */ {BTA_DM_DISC_RESULT, BTA_DM_SEARCH_IGNORE, 248 BTA_DM_DISCOVER_ACTIVE}, 249 /* API_DI_DISCOVER_EVT */ {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, 250 BTA_DM_DISCOVER_ACTIVE}, 251 /* DISC_CLOSE_TOUT_EVT */ 252 {BTA_DM_SEARCH_IGNORE, BTA_DM_SEARCH_IGNORE, BTA_DM_DISCOVER_ACTIVE}}; 253 254 typedef const uint8_t (*tBTA_DM_ST_TBL)[BTA_DM_SEARCH_NUM_COLS]; 255 256 /* state table */ 257 const tBTA_DM_ST_TBL bta_dm_search_st_tbl[] = { 258 bta_dm_search_idle_st_table, bta_dm_search_search_active_st_table, 259 bta_dm_search_search_cancelling_st_table, 260 bta_dm_search_disc_active_st_table}; 261 262 /******************************************************************************* 263 * 264 * Function bta_dm_sm_disable 265 * 266 * Description unregister BTA DM 267 * 268 * 269 * Returns void 270 * 271 ******************************************************************************/ 272 void bta_dm_sm_disable() { bta_sys_deregister(BTA_ID_DM); } 273 274 /******************************************************************************* 275 * 276 * Function bta_dm_sm_execute 277 * 278 * Description State machine event handling function for DM 279 * 280 * 281 * Returns void 282 * 283 ******************************************************************************/ 284 bool bta_dm_sm_execute(BT_HDR* p_msg) { 285 uint16_t event = p_msg->event & 0x00ff; 286 287 APPL_TRACE_EVENT("bta_dm_sm_execute event:0x%x", event); 288 289 /* execute action functions */ 290 if (event < BTA_DM_NUM_ACTIONS) { 291 (*bta_dm_action[event])((tBTA_DM_MSG*)p_msg); 292 } 293 294 return true; 295 } 296 297 /******************************************************************************* 298 * 299 * Function bta_dm_sm_search_disable 300 * 301 * Description unregister BTA SEARCH DM 302 * 303 * 304 * Returns void 305 * 306 ******************************************************************************/ 307 void bta_dm_search_sm_disable() { bta_sys_deregister(BTA_ID_DM_SEARCH); } 308 309 /******************************************************************************* 310 * 311 * Function bta_dm_search_sm_execute 312 * 313 * Description State machine event handling function for DM 314 * 315 * 316 * Returns void 317 * 318 ******************************************************************************/ 319 bool bta_dm_search_sm_execute(BT_HDR* p_msg) { 320 tBTA_DM_ST_TBL state_table; 321 uint8_t action; 322 int i; 323 324 APPL_TRACE_EVENT("bta_dm_search_sm_execute state:%d, event:0x%x", 325 bta_dm_search_cb.state, p_msg->event); 326 327 /* look up the state table for the current state */ 328 state_table = bta_dm_search_st_tbl[bta_dm_search_cb.state]; 329 330 bta_dm_search_cb.state = 331 state_table[p_msg->event & 0x00ff][BTA_DM_SEARCH_NEXT_STATE]; 332 333 /* execute action functions */ 334 for (i = 0; i < BTA_DM_SEARCH_ACTIONS; i++) { 335 action = state_table[p_msg->event & 0x00ff][i]; 336 if (action != BTA_DM_SEARCH_IGNORE) { 337 (*bta_dm_search_action[action])((tBTA_DM_MSG*)p_msg); 338 } else { 339 break; 340 } 341 } 342 return true; 343 } 344
