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 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 "bta_ag_api.h" 28 #include "bta_ag_at.h" 29 #include "bta_api.h" 30 #include "bta_sys.h" 31 32 /***************************************************************************** 33 * Constants 34 ****************************************************************************/ 35 /* Number of SCBs (AG service instances that can be registered) */ 36 #ifndef BTA_AG_NUM_SCB 37 #define BTA_AG_NUM_SCB 2 38 #endif 39 40 /* Time to wait for retry in case of collision */ 41 #ifndef BTA_AG_COLLISION_TIMEOUT_MS 42 #define BTA_AG_COLLISION_TIMEOUT_MS (2 * 1000) /* 2 seconds */ 43 #endif 44 45 /* RFCOMM MTU SIZE */ 46 #define BTA_AG_MTU 256 47 48 /* Max number of peer and local HF indicators */ 49 #define BTA_AG_MAX_NUM_PEER_HF_IND 20 50 #define BTA_AG_MAX_NUM_LOCAL_HF_IND 4 51 52 /* Internal profile indexes */ 53 #define BTA_AG_HSP 0 /* index for HSP */ 54 #define BTA_AG_HFP 1 /* index for HFP */ 55 #define BTA_AG_NUM_IDX 2 /* number of profile indexes */ 56 57 /* profile role for connection */ 58 #define BTA_AG_ACP 0 /* accepted connection */ 59 #define BTA_AG_INT 1 /* initiating connection */ 60 61 /* feature mask that matches spec */ 62 #define BTA_AG_BSRF_FEAT_SPEC \ 63 (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR | BTA_AG_FEAT_VREC | \ 64 BTA_AG_FEAT_INBAND | BTA_AG_FEAT_VTAG | BTA_AG_FEAT_REJECT | \ 65 BTA_AG_FEAT_ECS | BTA_AG_FEAT_ECC | BTA_AG_FEAT_EXTERR | \ 66 BTA_AG_FEAT_CODEC | BTA_AG_FEAT_HF_IND | BTA_AG_FEAT_ESCO | \ 67 BTA_AG_FEAT_VOIP) 68 69 #define BTA_AG_SDP_FEAT_SPEC \ 70 (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR | BTA_AG_FEAT_VREC | \ 71 BTA_AG_FEAT_INBAND | BTA_AG_FEAT_VTAG) 72 73 enum { 74 /* these events are handled by the state machine */ 75 BTA_AG_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_AG), 76 BTA_AG_API_DEREGISTER_EVT, 77 BTA_AG_API_OPEN_EVT, 78 BTA_AG_API_CLOSE_EVT, 79 BTA_AG_API_AUDIO_OPEN_EVT, 80 BTA_AG_API_AUDIO_CLOSE_EVT, 81 BTA_AG_API_RESULT_EVT, 82 BTA_AG_API_SETCODEC_EVT, 83 BTA_AG_RFC_OPEN_EVT, 84 BTA_AG_RFC_CLOSE_EVT, 85 BTA_AG_RFC_SRV_CLOSE_EVT, 86 BTA_AG_RFC_DATA_EVT, 87 BTA_AG_SCO_OPEN_EVT, 88 BTA_AG_SCO_CLOSE_EVT, 89 BTA_AG_DISC_ACP_RES_EVT, 90 BTA_AG_DISC_INT_RES_EVT, 91 BTA_AG_DISC_OK_EVT, 92 BTA_AG_DISC_FAIL_EVT, 93 BTA_AG_CI_RX_WRITE_EVT, 94 BTA_AG_RING_TIMEOUT_EVT, 95 BTA_AG_SVC_TIMEOUT_EVT, 96 BTA_AG_CI_SCO_DATA_EVT, 97 BTA_AG_CI_SLC_READY_EVT, 98 BTA_AG_MAX_EVT, 99 100 /* these events are handled outside of the state machine */ 101 BTA_AG_API_ENABLE_EVT, 102 BTA_AG_API_DISABLE_EVT 103 }; 104 105 /* Actions to perform after a SCO event */ 106 enum { 107 BTA_AG_POST_SCO_NONE, /* no action */ 108 BTA_AG_POST_SCO_CLOSE_RFC, /* close RFCOMM channel after SCO closes */ 109 BTA_AG_POST_SCO_RING, /* send RING result code after SCO opens */ 110 BTA_AG_POST_SCO_CALL_CONN, /* send call indicators after SCO opens/closes */ 111 BTA_AG_POST_SCO_CALL_ORIG, /* send call indicators after SCO closes */ 112 BTA_AG_POST_SCO_CALL_END, /* send call indicators after SCO closes */ 113 BTA_AG_POST_SCO_CALL_END_INCALL /* send call indicators for end call & 114 incoming call after SCO closes */ 115 }; 116 117 /* sco states */ 118 enum { 119 BTA_AG_SCO_SHUTDOWN_ST, /* no sco listening, all sco connections closed */ 120 BTA_AG_SCO_LISTEN_ST, /* sco listening */ 121 BTA_AG_SCO_CODEC_ST, /* sco codec negotiation */ 122 BTA_AG_SCO_OPENING_ST, /* sco connection opening */ 123 BTA_AG_SCO_OPEN_CL_ST, /* opening sco connection being closed */ 124 BTA_AG_SCO_OPEN_XFER_ST, /* opening sco connection being transferred */ 125 BTA_AG_SCO_OPEN_ST, /* sco open */ 126 BTA_AG_SCO_CLOSING_ST, /* sco closing */ 127 BTA_AG_SCO_CLOSE_OP_ST, /* closing sco being opened */ 128 BTA_AG_SCO_CLOSE_XFER_ST, /* closing sco being transferred */ 129 BTA_AG_SCO_SHUTTING_ST /* sco shutting down */ 130 }; 131 132 /***************************************************************************** 133 * Data types 134 ****************************************************************************/ 135 136 /* data type for BTA_AG_API_ENABLE_EVT */ 137 typedef struct { 138 BT_HDR hdr; 139 tBTA_AG_PARSE_MODE parse_mode; 140 tBTA_AG_CBACK* p_cback; 141 } tBTA_AG_API_ENABLE; 142 143 /* data type for BTA_AG_API_REGISTER_EVT */ 144 typedef struct { 145 BT_HDR hdr; 146 char p_name[2][BTA_SERVICE_NAME_LEN + 1]; 147 tBTA_SERVICE_MASK services; 148 tBTA_SEC sec_mask; 149 tBTA_AG_FEAT features; 150 uint8_t app_id; 151 } tBTA_AG_API_REGISTER; 152 153 /* data type for BTA_AG_API_OPEN_EVT */ 154 typedef struct { 155 BT_HDR hdr; 156 BD_ADDR bd_addr; 157 tBTA_SERVICE_MASK services; 158 tBTA_SEC sec_mask; 159 } tBTA_AG_API_OPEN; 160 161 /* data type for BTA_AG_API_RESULT_EVT */ 162 typedef struct { 163 BT_HDR hdr; 164 tBTA_AG_RES result; 165 tBTA_AG_RES_DATA data; 166 } tBTA_AG_API_RESULT; 167 168 /* data type for BTA_AG_API_SETCODEC_EVT */ 169 typedef struct { 170 BT_HDR hdr; 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 BT_HDR hdr; 177 uint16_t status; 178 } tBTA_AG_DISC_RESULT; 179 180 /* data type for RFCOMM events */ 181 typedef struct { 182 BT_HDR hdr; 183 uint16_t port_handle; 184 } tBTA_AG_RFC; 185 186 /* data type for BTA_AG_CI_RX_WRITE_EVT */ 187 typedef struct { 188 BT_HDR hdr; 189 // char p_data[BTA_AG_MTU+1]; 190 } tBTA_AG_CI_RX_WRITE; 191 192 /* union of all event datatypes */ 193 typedef union { 194 BT_HDR hdr; 195 tBTA_AG_API_ENABLE api_enable; 196 tBTA_AG_API_REGISTER api_register; 197 tBTA_AG_API_OPEN api_open; 198 tBTA_AG_API_RESULT api_result; 199 tBTA_AG_API_SETCODEC api_setcodec; 200 tBTA_AG_DISC_RESULT disc_result; 201 tBTA_AG_RFC rfc; 202 tBTA_AG_CI_RX_WRITE ci_rx_write; 203 } tBTA_AG_DATA; 204 205 /* type for each profile */ 206 typedef struct { 207 uint32_t sdp_handle; 208 uint8_t scn; 209 } tBTA_AG_PROFILE; 210 211 typedef enum { 212 BTA_AG_SCO_MSBC_SETTINGS_T2 = 0, /* preferred/default when codec is mSBC */ 213 BTA_AG_SCO_MSBC_SETTINGS_T1, 214 } tBTA_AG_SCO_MSBC_SETTINGS; 215 216 /* type for each service control block */ 217 typedef struct { 218 char clip[BTA_AG_AT_MAX_LEN + 1]; /* number string used for CLIP */ 219 uint16_t serv_handle[BTA_AG_NUM_IDX]; /* RFCOMM server handles */ 220 tBTA_AG_AT_CB at_cb; /* AT command interpreter */ 221 BD_ADDR peer_addr; /* peer bd address */ 222 tSDP_DISCOVERY_DB* p_disc_db; /* pointer to discovery database */ 223 tBTA_SERVICE_MASK reg_services; /* services specified in register API */ 224 tBTA_SERVICE_MASK open_services; /* services specified in open API */ 225 uint16_t conn_handle; /* RFCOMM handle of connected service */ 226 tBTA_SEC serv_sec_mask; /* server security mask */ 227 tBTA_SEC cli_sec_mask; /* client security mask */ 228 tBTA_AG_FEAT features; /* features registered by application */ 229 tBTA_AG_PEER_FEAT peer_features; /* peer device features */ 230 uint16_t peer_version; /* profile version of peer device */ 231 uint16_t hsp_version; /* HSP profile version before SDP */ 232 uint16_t sco_idx; /* SCO handle */ 233 bool in_use; /* scb in use */ 234 bool dealloc; /* true if service shutting down */ 235 bool clip_enabled; /* set to true if HF enables CLIP reporting */ 236 bool ccwa_enabled; /* set to true if HF enables CCWA reporting */ 237 bool cmer_enabled; /* set to true if HF enables CMER reporting */ 238 bool cmee_enabled; /* set to true if HF enables CME ERROR reporting */ 239 bool inband_enabled; /* set to true if inband ring enabled */ 240 bool svc_conn; /* set to true when service level connection up */ 241 uint8_t state; /* state machine state */ 242 uint8_t conn_service; /* connected service */ 243 uint8_t peer_scn; /* peer scn */ 244 uint8_t app_id; /* application id */ 245 uint8_t role; /* initiator/acceptor role */ 246 uint8_t post_sco; /* action to perform after sco event */ 247 uint8_t call_ind; /* CIEV call indicator value */ 248 uint8_t callsetup_ind; /* CIEV callsetup indicator value */ 249 uint8_t service_ind; /* CIEV service indicator value */ 250 uint8_t signal_ind; /* CIEV signal indicator value */ 251 uint8_t roam_ind; /* CIEV roam indicator value */ 252 uint8_t battchg_ind; /* CIEV battery charge indicator value */ 253 uint8_t callheld_ind; /* CIEV call held indicator value */ 254 uint32_t bia_masked_out; /* indicators HF does not want us to send */ 255 alarm_t* collision_timer; 256 alarm_t* ring_timer; 257 alarm_t* codec_negotiation_timer; 258 tBTA_AG_PEER_CODEC peer_codecs; /* codecs for eSCO supported by the peer */ 259 tBTA_AG_PEER_CODEC sco_codec; /* codec to be used for eSCO connection */ 260 tBTA_AG_PEER_CODEC 261 inuse_codec; /* codec being used for the current SCO connection */ 262 bool codec_updated; /* set to true whenever the app updates codec type */ 263 bool codec_fallback; /* If sco nego fails for mSBC, fallback to CVSD */ 264 tBTA_AG_SCO_MSBC_SETTINGS 265 codec_msbc_settings; /* settings to be used for the impending eSCO */ 266 267 tBTA_AG_HF_IND 268 peer_hf_indicators[BTA_AG_MAX_NUM_PEER_HF_IND]; /* Peer supported 269 HF indicators */ 270 tBTA_AG_HF_IND 271 local_hf_indicators[BTA_AG_MAX_NUM_LOCAL_HF_IND]; /* Local supported 272 HF indicators */ 273 } tBTA_AG_SCB; 274 275 /* type for sco data */ 276 typedef struct { 277 tBTM_ESCO_CONN_REQ_EVT_DATA conn_data; /* SCO data for pending conn request */ 278 tBTA_AG_SCB* p_curr_scb; /* SCB associated with SCO connection */ 279 tBTA_AG_SCB* p_xfer_scb; /* SCB associated with SCO transfer */ 280 uint16_t cur_idx; /* SCO handle */ 281 uint8_t state; /* SCO state variable */ 282 bool is_local; /* SCO connection initiated locally or remotely */ 283 } tBTA_AG_SCO_CB; 284 285 /* type for AG control block */ 286 typedef struct { 287 tBTA_AG_SCB scb[BTA_AG_NUM_SCB]; /* service control blocks */ 288 tBTA_AG_PROFILE profile[BTA_AG_NUM_IDX]; /* profile-specific data */ 289 tBTA_AG_SCO_CB sco; /* SCO data */ 290 tBTA_AG_CBACK* p_cback; /* application callback */ 291 tBTA_AG_PARSE_MODE parse_mode; /* parse/pass-through mode */ 292 } tBTA_AG_CB; 293 294 /***************************************************************************** 295 * Global data 296 ****************************************************************************/ 297 298 /* constant lookup tables */ 299 extern const uint16_t bta_ag_uuid[BTA_AG_NUM_IDX]; 300 extern const uint8_t bta_ag_sec_id[BTA_AG_NUM_IDX]; 301 extern const tBTA_AG_AT_CMD* bta_ag_at_tbl[BTA_AG_NUM_IDX]; 302 303 /* control block declaration */ 304 extern tBTA_AG_CB bta_ag_cb; 305 306 /* config struct */ 307 extern tBTA_AG_CFG* p_bta_ag_cfg; 308 extern const tBTA_AG_HF_IND bta_ag_local_hf_ind_cfg[]; 309 310 /***************************************************************************** 311 * Function prototypes 312 ****************************************************************************/ 313 314 /* main functions */ 315 extern void bta_ag_scb_dealloc(tBTA_AG_SCB* p_scb); 316 extern uint16_t bta_ag_scb_to_idx(tBTA_AG_SCB* p_scb); 317 extern tBTA_AG_SCB* bta_ag_scb_by_idx(uint16_t idx); 318 extern uint8_t bta_ag_service_to_idx(tBTA_SERVICE_MASK services); 319 extern uint16_t bta_ag_idx_by_bdaddr(BD_ADDR peer_addr); 320 extern bool bta_ag_other_scb_open(tBTA_AG_SCB* p_curr_scb); 321 extern bool bta_ag_scb_open(tBTA_AG_SCB* p_curr_scb); 322 extern tBTA_AG_SCB* bta_ag_get_other_idle_scb(tBTA_AG_SCB* p_curr_scb); 323 extern void bta_ag_sm_execute(tBTA_AG_SCB* p_scb, uint16_t event, 324 tBTA_AG_DATA* p_data); 325 extern bool bta_ag_hdl_event(BT_HDR* p_msg); 326 extern void bta_ag_collision_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, 327 uint8_t app_id, BD_ADDR peer_addr); 328 extern void bta_ag_resume_open(tBTA_AG_SCB* p_scb); 329 330 /* SDP functions */ 331 extern bool bta_ag_add_record(uint16_t service_uuid, char* p_service_name, 332 uint8_t scn, tBTA_AG_FEAT features, 333 uint32_t sdp_handle); 334 extern void bta_ag_create_records(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 335 extern void bta_ag_del_records(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 336 extern bool bta_ag_sdp_find_attr(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); 337 extern void bta_ag_do_disc(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); 338 extern void bta_ag_free_db(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 339 340 /* RFCOMM functions */ 341 extern void bta_ag_start_servers(tBTA_AG_SCB* p_scb, 342 tBTA_SERVICE_MASK services); 343 extern void bta_ag_close_servers(tBTA_AG_SCB* p_scb, 344 tBTA_SERVICE_MASK services); 345 extern bool bta_ag_is_server_closed(tBTA_AG_SCB* p_scb); 346 extern void bta_ag_rfc_do_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 347 extern void bta_ag_rfc_do_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 348 349 /* SCO functions */ 350 extern bool bta_ag_sco_is_open(tBTA_AG_SCB* p_scb); 351 extern bool bta_ag_sco_is_opening(tBTA_AG_SCB* p_scb); 352 extern void bta_ag_sco_conn_rsp(tBTA_AG_SCB* p_scb, 353 tBTM_ESCO_CONN_REQ_EVT_DATA* p_data); 354 355 /* AT command functions */ 356 extern void bta_ag_at_hsp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, 357 uint8_t arg_type, char* p_arg, int16_t int_arg); 358 extern void bta_ag_at_hfp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, 359 uint8_t arg_type, char* p_arg, int16_t int_arg); 360 extern void bta_ag_at_err_cback(tBTA_AG_SCB* p_scb, bool unknown, char* p_arg); 361 extern bool bta_ag_inband_enabled(tBTA_AG_SCB* p_scb); 362 extern void bta_ag_send_call_inds(tBTA_AG_SCB* p_scb, tBTA_AG_RES result); 363 364 /* Action functions */ 365 extern void bta_ag_register(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 366 extern void bta_ag_deregister(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 367 extern void bta_ag_start_dereg(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 368 extern void bta_ag_start_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 369 extern void bta_ag_start_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 370 extern void bta_ag_disc_int_res(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 371 extern void bta_ag_disc_acp_res(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 372 extern void bta_ag_disc_fail(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 373 extern void bta_ag_open_fail(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 374 extern void bta_ag_rfc_fail(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 375 extern void bta_ag_rfc_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 376 extern void bta_ag_rfc_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 377 extern void bta_ag_rfc_acp_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 378 extern void bta_ag_rfc_data(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 379 extern void bta_ag_sco_listen(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 380 extern void bta_ag_sco_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 381 extern void bta_ag_sco_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 382 extern void bta_ag_sco_codec_nego(tBTA_AG_SCB* p_scb, bool result); 383 extern void bta_ag_codec_negotiate(tBTA_AG_SCB* p_scb); 384 extern void bta_ag_sco_shutdown(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 385 extern void bta_ag_sco_conn_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 386 extern void bta_ag_sco_conn_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 387 extern void bta_ag_post_sco_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 388 extern void bta_ag_post_sco_close(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 389 extern void bta_ag_svc_conn_open(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 390 extern void bta_ag_result(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 391 extern void bta_ag_setcodec(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 392 extern void bta_ag_send_bcs(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 393 extern void bta_ag_send_ring(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 394 extern void bta_ag_ci_sco_data(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 395 extern void bta_ag_ci_rx_data(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 396 extern void bta_ag_rcvd_slc_ready(tBTA_AG_SCB* p_scb, tBTA_AG_DATA* p_data); 397 398 #endif /* BTA_AG_INT_H */ 399
