1 /****************************************************************************** 2 * 3 * Copyright 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 private interface file for the BTA audio gateway. 22 * 23 ******************************************************************************/ 24 #ifndef BTA_AG_INT_H 25 #define BTA_AG_INT_H 26 27 #include <bluetooth/log.h> 28 29 #include <cstdint> 30 #include <string> 31 32 #include "bta/ag/bta_ag_at.h" 33 #include "bta/include/bta_ag_api.h" 34 #include "bta/include/bta_api.h" 35 #include "bta/sys/bta_sys.h" 36 #include "internal_include/bt_target.h" 37 #include "os/logging/log_adapter.h" 38 #include "stack/include/bt_hdr.h" 39 #include "stack/include/btm_api_types.h" 40 #include "stack/include/sdp_status.h" 41 #include "stack/sdp/sdp_discovery_db.h" 42 #include "types/raw_address.h" 43 44 /***************************************************************************** 45 * Constants 46 ****************************************************************************/ 47 /* Time to wait for retry in case of collision */ 48 #ifndef BTA_AG_COLLISION_TIMEOUT_MS 49 #define BTA_AG_COLLISION_TIMEOUT_MS (2 * 1000) /* 2 seconds */ 50 #endif 51 52 /* RFCOMM MTU SIZE */ 53 #define BTA_AG_MTU 256 54 55 /* Max number of peer and local HF indicators */ 56 #define BTA_AG_MAX_NUM_PEER_HF_IND 20 57 #define BTA_AG_MAX_NUM_LOCAL_HF_IND 4 58 59 /* Internal profile indexes */ 60 #define BTA_AG_HSP 0 /* index for HSP */ 61 #define BTA_AG_HFP 1 /* index for HFP */ 62 #define BTA_AG_NUM_IDX 2 /* number of profile indexes */ 63 64 /* profile role for connection */ 65 #define BTA_AG_ACP 0 /* accepted connection */ 66 #define BTA_AG_INT 1 /* initiating connection */ 67 68 #define BTA_AG_SDP_FEAT_SPEC \ 69 (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR | BTA_AG_FEAT_VREC | BTA_AG_FEAT_INBAND | BTA_AG_FEAT_VTAG) 70 71 /* Timeout for alarm in 2018 toyota camry carkit workaround */ 72 #define BTA_AG_BIND_TIMEOUT_MS 500 73 74 enum { 75 /* these events are handled by the state machine */ 76 BTA_AG_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_AG), 77 BTA_AG_API_DEREGISTER_EVT, 78 BTA_AG_API_OPEN_EVT, 79 BTA_AG_API_CLOSE_EVT, 80 BTA_AG_API_AUDIO_OPEN_EVT, 81 BTA_AG_API_AUDIO_CLOSE_EVT, 82 BTA_AG_API_RESULT_EVT, 83 BTA_AG_API_SETCODEC_EVT, 84 BTA_AG_RFC_OPEN_EVT, 85 BTA_AG_RFC_CLOSE_EVT, 86 BTA_AG_RFC_SRV_CLOSE_EVT, 87 BTA_AG_RFC_DATA_EVT, 88 BTA_AG_SCO_OPEN_EVT, 89 BTA_AG_SCO_CLOSE_EVT, 90 BTA_AG_DISC_ACP_RES_EVT, 91 BTA_AG_DISC_INT_RES_EVT, 92 BTA_AG_DISC_OK_EVT, 93 BTA_AG_DISC_FAIL_EVT, 94 BTA_AG_RING_TIMEOUT_EVT, 95 BTA_AG_SVC_TIMEOUT_EVT, 96 BTA_AG_COLLISION_EVT, 97 BTA_AG_MAX_EVT, 98 }; 99 100 /* Local events which will not trigger a higher layer callback */ 101 enum { 102 BTA_AG_LOCAL_EVT_FIRST = 0x100, 103 BTA_AG_LOCAL_EVT_CCWA, 104 BTA_AG_LOCAL_EVT_CLIP, 105 BTA_AG_LOCAL_EVT_CMER, 106 BTA_AG_LOCAL_EVT_BRSF, 107 BTA_AG_LOCAL_EVT_CMEE, 108 BTA_AG_LOCAL_EVT_BCC, 109 }; 110 111 /* Actions to perform after a SCO event */ 112 enum { 113 BTA_AG_POST_SCO_NONE, /* no action */ 114 BTA_AG_POST_SCO_CLOSE_RFC, /* close RFCOMM channel after SCO closes */ 115 BTA_AG_POST_SCO_RING, /* send RING result code after SCO opens */ 116 BTA_AG_POST_SCO_CALL_CONN, /* send call indicators after SCO opens/closes */ 117 BTA_AG_POST_SCO_CALL_ORIG, /* send call indicators after SCO closes */ 118 BTA_AG_POST_SCO_CALL_END, /* send call indicators after SCO closes */ 119 BTA_AG_POST_SCO_CALL_END_INCALL /* send call indicators for end call & 120 incoming call after SCO closes */ 121 }; 122 123 /* sco states */ 124 typedef enum : uint8_t { 125 BTA_AG_SCO_SHUTDOWN_ST, /* no sco listening, all sco connections closed */ 126 BTA_AG_SCO_LISTEN_ST, /* sco listening */ 127 BTA_AG_SCO_CODEC_ST, /* sco codec negotiation */ 128 BTA_AG_SCO_OPENING_ST, /* sco connection opening */ 129 BTA_AG_SCO_OPEN_CL_ST, /* opening sco connection being closed */ 130 BTA_AG_SCO_OPEN_XFER_ST, /* opening sco connection being transferred */ 131 BTA_AG_SCO_OPEN_ST, /* sco open */ 132 BTA_AG_SCO_CLOSING_ST, /* sco closing */ 133 BTA_AG_SCO_CLOSE_OP_ST, /* closing sco being opened */ 134 BTA_AG_SCO_CLOSE_XFER_ST, /* closing sco being transferred */ 135 BTA_AG_SCO_SHUTTING_ST /* sco shutting down */ 136 } tBTA_AG_SCO; 137 138 /***************************************************************************** 139 * Data types 140 ****************************************************************************/ 141 142 /* data type for BTA_AG_API_REGISTER_EVT */ 143 typedef struct { 144 char p_name[2][BTA_SERVICE_NAME_LEN + 1]; 145 tBTA_SERVICE_MASK services; 146 tBTA_AG_FEAT features; 147 uint8_t app_id; 148 } tBTA_AG_API_REGISTER; 149 150 /* data type for BTA_AG_API_OPEN_EVT */ 151 typedef struct { 152 RawAddress bd_addr; 153 } tBTA_AG_API_OPEN; 154 155 /* data type for BTA_AG_API_AUDIO_OPEN_EVT */ 156 typedef struct { 157 tBTA_AG_PEER_CODEC disabled_codecs; 158 } tBTA_AG_API_AUDIO_OPEN; 159 160 /* data type for BTA_AG_API_RESULT_EVT */ 161 typedef struct { 162 tBTA_AG_RES result; 163 tBTA_AG_RES_DATA data; ToString__anon71f1767f1b08164 std::string ToString() const { 165 return base::StringPrintf("result:%s", bta_ag_result_text(result).c_str()); 166 } 167 } tBTA_AG_API_RESULT; 168 169 /* data type for BTA_AG_API_SETCODEC_EVT */ 170 typedef struct { 171 tBTA_AG_PEER_CODEC codec; 172 } tBTA_AG_API_SETCODEC; 173 174 /* data type for BTA_AG_DISC_RESULT_EVT */ 175 typedef struct { 176 tSDP_STATUS status; 177 } tBTA_AG_DISC_RESULT; 178 179 /* data type for RFCOMM events */ 180 typedef struct { 181 uint16_t port_handle; 182 } tBTA_AG_RFC; 183 184 /* union of all event datatypes */ 185 union tBTA_AG_DATA { 186 tBTA_AG_API_REGISTER api_register; 187 tBTA_AG_API_OPEN api_open; 188 tBTA_AG_API_AUDIO_OPEN api_audio_open; 189 tBTA_AG_API_RESULT api_result; 190 tBTA_AG_API_SETCODEC api_setcodec; 191 tBTA_AG_DISC_RESULT disc_result; 192 tBTA_AG_RFC rfc; 193 static const tBTA_AG_DATA kEmpty; 194 195 /** 196 * Check if two tBTA_AG_DATA are equal in memory 197 * 198 * @param rhs other tBTA_AG_DATA 199 * @return true if both unions are equal in memory 200 */ 201 bool operator==(const tBTA_AG_DATA& rhs) const { 202 return std::memcmp(this, &rhs, sizeof(tBTA_AG_DATA)) == 0; 203 } 204 205 /** 206 * Check if this union is empty by comparing it to the kEmpty constant 207 * 208 * @return true if this union is empty 209 */ IsEmpty()210 bool IsEmpty() const { return *this == kEmpty; } 211 }; 212 213 /* type for each profile */ 214 typedef struct { 215 uint32_t sdp_handle; 216 uint8_t scn; 217 } tBTA_AG_PROFILE; 218 219 typedef enum { 220 BTA_AG_SCO_CVSD_SETTINGS_S4 = 0, /* preferred/default when codec is CVSD */ 221 BTA_AG_SCO_CVSD_SETTINGS_S3, 222 BTA_AG_SCO_CVSD_SETTINGS_S1, 223 } tBTA_AG_SCO_CVSD_SETTINGS; 224 225 typedef enum { 226 BTA_AG_SCO_MSBC_SETTINGS_T2 = 0, /* preferred/default when codec is mSBC */ 227 BTA_AG_SCO_MSBC_SETTINGS_T1, 228 } tBTA_AG_SCO_MSBC_SETTINGS; 229 230 typedef enum { 231 BTA_AG_SCO_LC3_SETTINGS_T2 = 0, /* preferred/default when codec is LC3 */ 232 BTA_AG_SCO_LC3_SETTINGS_T1, 233 } tBTA_AG_SCO_LC3_SETTINGS; 234 235 typedef enum { 236 BTA_AG_SCO_APTX_SWB_SETTINGS_Q0 = 0, /* preferred/default when codec is SWB */ 237 BTA_AG_SCO_APTX_SWB_SETTINGS_Q1 = 4, 238 BTA_AG_SCO_APTX_SWB_SETTINGS_Q2 = 6, 239 BTA_AG_SCO_APTX_SWB_SETTINGS_Q3 = 7, 240 BTA_AG_SCO_APTX_SWB_SETTINGS_UNKNOWN = 0xFFFF, 241 } tBTA_AG_SCO_APTX_SWB_SETTINGS; 242 243 /* state machine states */ 244 typedef enum { BTA_AG_INIT_ST, BTA_AG_OPENING_ST, BTA_AG_OPEN_ST, BTA_AG_CLOSING_ST } tBTA_AG_STATE; 245 246 /* type for each service control block */ 247 struct tBTA_AG_SCB { 248 char clip[BTA_AG_AT_MAX_LEN + 1]; /* number string used for CLIP */ 249 uint16_t serv_handle[BTA_AG_NUM_IDX]; /* RFCOMM server handles */ 250 tBTA_AG_AT_CB at_cb; /* AT command interpreter */ 251 RawAddress peer_addr; /* peer bd address */ 252 tSDP_DISCOVERY_DB* p_disc_db; /* pointer to discovery database */ 253 tBTA_SERVICE_MASK reg_services; /* services specified in register API */ 254 tBTA_SERVICE_MASK open_services; /* services specified in open API */ 255 uint16_t conn_handle; /* RFCOMM handle of connected service */ 256 tBTA_AG_FEAT features; /* features registered by application */ 257 tBTA_AG_FEAT masked_features; /* local BRSF features for this connection */ 258 tBTA_AG_PEER_FEAT peer_features; /* peer device features */ 259 uint16_t peer_sdp_features; /* peer device SDP features */ 260 uint16_t peer_version; /* profile version of peer device */ 261 uint16_t hsp_version; /* HSP profile version before SDP */ 262 uint16_t sco_idx; /* SCO handle */ 263 bool in_use; /* scb in use */ 264 bool dealloc; /* true if service shutting down */ 265 bool clip_enabled; /* set to true if HF enables CLIP reporting */ 266 bool ccwa_enabled; /* set to true if HF enables CCWA reporting */ 267 bool cmer_enabled; /* set to true if HF enables CMER reporting */ 268 bool cmee_enabled; /* set to true if HF enables CME ERROR reporting */ 269 bool inband_enabled; /* set to true if inband ring enabled */ 270 bool nrec_enabled; /* noise reduction & echo canceling */ 271 bool svc_conn; /* set to true when service level connection up */ 272 tBTA_AG_STATE state; /* state machine state */ 273 uint8_t conn_service; /* connected service */ 274 uint8_t peer_scn; /* peer scn */ 275 uint8_t app_id; /* application id */ 276 uint8_t role; /* initiator/acceptor role */ 277 uint8_t post_sco; /* action to perform after sco event */ 278 uint8_t call_ind; /* CIEV call indicator value */ 279 uint8_t callsetup_ind; /* CIEV callsetup indicator value */ 280 uint8_t service_ind; /* CIEV service indicator value */ 281 uint8_t signal_ind; /* CIEV signal indicator value */ 282 uint8_t roam_ind; /* CIEV roam indicator value */ 283 uint8_t battchg_ind; /* CIEV battery charge indicator value */ 284 uint8_t callheld_ind; /* CIEV call held indicator value */ 285 uint32_t bia_masked_out; /* indicators HF does not want us to send */ 286 alarm_t* bind_timer; /* Timer for toyota camry 2018 carkit workaround */ 287 alarm_t* collision_timer; 288 alarm_t* ring_timer; 289 alarm_t* codec_negotiation_timer; 290 bool received_at_bac; /* indicate AT+BAC is received at least once */ 291 tBTA_AG_PEER_CODEC disabled_codecs; /* set by app to block certain codecs from being used */ 292 tBTA_AG_PEER_CODEC peer_codecs; /* codecs for eSCO supported by the peer */ 293 tBTA_AG_PEER_CODEC sco_codec; /* codecs to be used for eSCO connection */ 294 tBTA_AG_UUID_CODEC inuse_codec; /* codec being used for the current SCO connection */ 295 bool codec_updated; /* set to true whenever the app updates codec type */ 296 bool codec_fallback; /* If sco nego fails for mSBC, fallback to CVSD */ 297 bool trying_cvsd_safe_settings; /* set to true whenever we are trying CVSD 298 safe settings */ 299 uint8_t retransmission_effort_retries; /* Retry eSCO 300 with retransmission_effort value*/ 301 tBTA_AG_SCO_MSBC_SETTINGS codec_msbc_settings; /* settings to be used for the 302 impending eSCO on WB */ 303 tBTA_AG_SCO_LC3_SETTINGS codec_lc3_settings; /* settings to be used for the 304 impending eSCO on SWB */ 305 tBTA_AG_SCO_CVSD_SETTINGS codec_cvsd_settings; /* settings to be used for the 306 impending eSCO on CVSD */ 307 tBTA_AG_SCO_APTX_SWB_SETTINGS codec_aptx_settings; /* settings to be used for the 308 aptX Voice SWB eSCO */ 309 bool is_aptx_swb_codec; /* Flag to determine aptX Voice SWB codec */ 310 311 tBTA_AG_HF_IND peer_hf_indicators[BTA_AG_MAX_NUM_PEER_HF_IND]; /* Peer supported 312 HF indicators */ 313 tBTA_AG_HF_IND local_hf_indicators[BTA_AG_MAX_NUM_LOCAL_HF_IND]; /* Local supported 314 HF indicators */ 315 ToStringtBTA_AG_SCB316 std::string ToString() const { 317 return base::StringPrintf( 318 "codec_updated=%d, codec_fallback=%d, nrec=%d" 319 "sco_codec=%d, peer_codec=%d, msbc_settings=%d, lc3_settings=%d, " 320 "device=%s", 321 codec_updated, codec_fallback, nrec_enabled, sco_codec, peer_codecs, 322 codec_msbc_settings, codec_lc3_settings, ADDRESS_TO_LOGGABLE_CSTR(peer_addr)); 323 } 324 }; 325 326 /* type for sco data */ 327 typedef struct { 328 tBTM_ESCO_CONN_REQ_EVT_DATA conn_data; /* SCO data for pending conn request */ 329 tBTA_AG_SCB* p_curr_scb; /* SCB associated with SCO connection */ 330 tBTA_AG_SCB* p_xfer_scb; /* SCB associated with SCO transfer */ 331 uint16_t cur_idx; /* SCO handle */ 332 tBTA_AG_SCO state; /* SCO state variable */ 333 bool is_local; /* SCO connection initiated locally or remotely */ 334 } tBTA_AG_SCO_CB; 335 336 /* type for AG control block */ 337 typedef struct { 338 tBTA_AG_SCB scb[BTA_AG_MAX_NUM_CLIENTS]; /* service control blocks */ 339 tBTA_AG_PROFILE profile[BTA_AG_NUM_IDX]; /* profile-specific data */ 340 tBTA_AG_SCO_CB sco; /* SCO data */ 341 tBTA_AG_CBACK* p_cback; /* application callback */ 342 } tBTA_AG_CB; 343 344 /***************************************************************************** 345 * Global data 346 ****************************************************************************/ 347 348 /* constant lookup tables */ 349 extern const uint16_t bta_ag_uuid[BTA_AG_NUM_IDX]; 350 extern const uint8_t bta_ag_sec_id[BTA_AG_NUM_IDX]; 351 extern const tBTA_AG_AT_CMD* bta_ag_at_tbl[BTA_AG_NUM_IDX]; 352 353 /* control block declaration */ 354 extern tBTA_AG_CB bta_ag_cb; 355 356 /* config struct */ 357 extern const tBTA_AG_CFG* p_bta_ag_cfg; 358 extern const tBTA_AG_HF_IND bta_ag_local_hf_ind_cfg[]; 359 360 /***************************************************************************** 361 * Function prototypes 362 ****************************************************************************/ 363 bool bta_ag_hdl_event(const BT_HDR_RIGID* p_msg); 364 365 /* API functions */ 366 void bta_ag_api_enable(tBTA_AG_CBACK* p_cback); 367 void bta_ag_api_disable(); 368 void bta_ag_api_set_active_device(const RawAddress& new_active_device); 369 void bta_ag_api_register(tBTA_SERVICE_MASK services, tBTA_AG_FEAT features, 370 const std::vector<std::string>& service_names, uint8_t app_id); 371 void bta_ag_api_result(uint16_t handle, tBTA_AG_RES result, const tBTA_AG_RES_DATA& result_data); 372 373 /* main functions */ 374 void bta_ag_scb_dealloc(tBTA_AG_SCB* p_scb); 375 uint16_t bta_ag_scb_to_idx(tBTA_AG_SCB* p_scb); 376 tBTA_AG_SCB* bta_ag_scb_by_idx(uint16_t idx); 377 uint8_t bta_ag_service_to_idx(tBTA_SERVICE_MASK services); 378 uint16_t bta_ag_idx_by_bdaddr(const RawAddress* peer_addr); 379 bool bta_ag_other_scb_open(tBTA_AG_SCB* p_curr_scb); 380 bool bta_ag_scb_open(tBTA_AG_SCB* p_curr_scb); 381 void bta_ag_sm_execute(tBTA_AG_SCB* p_scb, uint16_t event, const tBTA_AG_DATA& data); 382 void bta_ag_sm_execute_by_handle(uint16_t handle, uint16_t event, const tBTA_AG_DATA& data); 383 void bta_ag_collision_cback(tBTA_SYS_CONN_STATUS status, tBTA_SYS_ID id, uint8_t app_id, 384 const RawAddress& peer_addr); 385 void bta_ag_resume_open(tBTA_AG_SCB* p_scb); 386 const std::string bta_ag_state_str(tBTA_AG_STATE state); 387 388 /* SDP functions */ 389 bool bta_ag_add_record(uint16_t service_uuid, const char* p_service_name, uint8_t scn, 390 tBTA_AG_FEAT features, uint32_t sdp_handle); 391 void bta_ag_create_records(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 392 void bta_ag_del_records(tBTA_AG_SCB* p_scb); 393 bool bta_ag_sdp_find_attr(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); 394 void bta_ag_do_disc(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); 395 void bta_ag_free_db(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 396 397 /* RFCOMM functions */ 398 void bta_ag_start_servers(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK services); 399 void bta_ag_close_servers(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK services); 400 bool bta_ag_is_server_closed(tBTA_AG_SCB* p_scb); 401 void bta_ag_rfc_do_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 402 void bta_ag_rfc_do_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 403 404 /* SCO functions */ 405 bool bta_ag_sco_is_active_device(const RawAddress& bd_addr); 406 bool bta_ag_sco_is_open(tBTA_AG_SCB* p_scb); 407 bool bta_ag_sco_is_opening(tBTA_AG_SCB* p_scb); 408 void bta_ag_sco_conn_rsp(tBTA_AG_SCB* p_scb, tBTM_ESCO_CONN_REQ_EVT_DATA* data); 409 // Testonly 410 void bta_ag_create_sco(tBTA_AG_SCB* p_scb, bool is_orig); 411 412 /* AT command functions */ 413 void bta_ag_at_hsp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, uint8_t arg_type, char* p_arg, 414 char* p_end, int16_t int_arg); 415 void bta_ag_at_hfp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, uint8_t arg_type, char* p_arg, 416 char* p_end, int16_t int_arg); 417 void bta_ag_at_err_cback(tBTA_AG_SCB* p_scb, bool unknown, const char* p_arg); 418 bool bta_ag_inband_enabled(tBTA_AG_SCB* p_scb); 419 void bta_ag_send_call_inds(tBTA_AG_SCB* p_scb, tBTA_AG_RES result); 420 421 /* Action functions */ 422 void bta_ag_register(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 423 void bta_ag_deregister(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 424 void bta_ag_start_dereg(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 425 void bta_ag_start_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 426 void bta_ag_start_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 427 void bta_ag_disc_int_res(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 428 void bta_ag_disc_acp_res(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 429 void bta_ag_disc_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 430 void bta_ag_open_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 431 void bta_ag_rfc_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 432 void bta_ag_rfc_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 433 void bta_ag_rfc_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 434 void bta_ag_rfc_acp_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 435 void bta_ag_rfc_data(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 436 void bta_ag_sco_listen(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 437 void bta_ag_sco_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 438 void bta_ag_sco_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 439 void bta_ag_sco_shutdown(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 440 void bta_ag_sco_conn_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 441 void bta_ag_sco_conn_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 442 void bta_ag_post_sco_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 443 void bta_ag_post_sco_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 444 void bta_ag_svc_conn_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 445 void bta_ag_result(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 446 void bta_ag_setcodec(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 447 void bta_ag_send_ring(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 448 void bta_ag_handle_collision(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); 449 size_t bta_ag_sco_write(const uint8_t* p_buf, uint32_t len); 450 size_t bta_ag_sco_read(uint8_t* p_buf, uint32_t len); 451 452 /* Internal utility functions */ 453 void bta_ag_sco_codec_nego(tBTA_AG_SCB* p_scb, bool result); 454 void bta_ag_codec_negotiate(tBTA_AG_SCB* p_scb); 455 bool bta_ag_is_sco_open_allowed(tBTA_AG_SCB* p_scb, const std::string event); 456 void bta_ag_send_bcs(tBTA_AG_SCB* p_scb); 457 bool bta_ag_get_sco_offload_enabled(); 458 void bta_ag_set_sco_offload_enabled(bool value); 459 void bta_ag_set_sco_allowed(bool value); 460 const RawAddress& bta_ag_get_active_device(); 461 void bta_clear_active_device(); 462 void bta_ag_send_qac(tBTA_AG_SCB* p_scb); 463 void bta_ag_send_qcs(tBTA_AG_SCB* p_scb); 464 /** 465 * Check if SCO is managed by Audio is enabled. This is set via the system property 466 * bluetooth.sco.managed_by_audio. 467 * <p>When set to false, Bluetooth will manage the start and end of the SCO. 468 * <p>When set to true, Audio will manage the start and end of the SCO through 469 * HAL. 470 * 471 * @return true if SCO managed by Audio is enabled, false otherwise 472 */ 473 bool bta_ag_is_sco_managed_by_audio(); 474 /** 475 * Respond to Audio HAL's SuspendStream request when SCO is disconnected 476 */ 477 void bta_ag_stream_suspended(); 478 479 namespace std { 480 template <> 481 struct formatter<tBTA_AG_SCO_APTX_SWB_SETTINGS> : enum_formatter<tBTA_AG_SCO_APTX_SWB_SETTINGS> {}; 482 template <> 483 struct formatter<tBTA_AG_SCO> : enum_formatter<tBTA_AG_SCO> {}; 484 } // namespace std 485 486 #endif /* BTA_AG_INT_H */ 487