1 /****************************************************************************** 2 * 3 * Copyright (c) 2014 The Android Open Source Project 4 * Copyright 2003-2012 Broadcom Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at: 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 ******************************************************************************/ 19 20 #include <cstdint> 21 #include <unordered_set> 22 23 #include "bta/hf_client/bta_hf_client_at.h" 24 #include "bta/include/bta_hf_client_api.h" 25 #include "bta/sys/bta_sys.h" 26 #include "osi/include/alarm.h" 27 #include "stack/include/bt_hdr.h" 28 #include "stack/include/bt_types.h" 29 #include "types/raw_address.h" 30 31 /***************************************************************************** 32 * Constants 33 ****************************************************************************/ 34 35 /* RFCOMM MTU SIZE */ 36 #define BTA_HF_CLIENT_MTU 256 37 38 /* profile role for connection */ 39 #define BTA_HF_CLIENT_ACP 0 /* accepted connection */ 40 #define BTA_HF_CLIENT_INT 1 /* initiating connection */ 41 42 /* Time (in milliseconds) to wait for retry in case of collision */ 43 #ifndef BTA_HF_CLIENT_COLLISION_TIMER_MS 44 #define BTA_HF_CLIENT_COLLISION_TIMER_MS 2411 45 #endif 46 47 /* Maximum number of HF devices supported simultaneously */ 48 #define HF_CLIENT_MAX_DEVICES 10 49 50 enum { 51 /* these events are handled by the state machine */ 52 BTA_HF_CLIENT_API_OPEN_EVT = BTA_SYS_EVT_START(BTA_ID_HS), 53 BTA_HF_CLIENT_API_CLOSE_EVT, 54 BTA_HF_CLIENT_API_AUDIO_OPEN_EVT, 55 BTA_HF_CLIENT_API_AUDIO_CLOSE_EVT, 56 BTA_HF_CLIENT_RFC_OPEN_EVT, 57 BTA_HF_CLIENT_RFC_CLOSE_EVT, 58 BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT, 59 BTA_HF_CLIENT_RFC_DATA_EVT, 60 BTA_HF_CLIENT_DISC_ACP_RES_EVT, 61 BTA_HF_CLIENT_DISC_INT_RES_EVT, 62 BTA_HF_CLIENT_DISC_OK_EVT, 63 BTA_HF_CLIENT_DISC_FAIL_EVT, 64 BTA_HF_CLIENT_SCO_OPEN_EVT, 65 BTA_HF_CLIENT_SCO_CLOSE_EVT, 66 BTA_HF_CLIENT_SEND_AT_CMD_EVT, 67 BTA_HF_CLIENT_MAX_EVT, 68 69 /* these events are handled outside of the state machine */ 70 BTA_HF_CLIENT_API_ENABLE_EVT, 71 BTA_HF_CLIENT_API_DISABLE_EVT 72 }; 73 74 /* AT Command enum */ 75 enum { 76 BTA_HF_CLIENT_AT_NONE, 77 BTA_HF_CLIENT_AT_BRSF, 78 BTA_HF_CLIENT_AT_BAC, 79 BTA_HF_CLIENT_AT_CIND, 80 BTA_HF_CLIENT_AT_CIND_STATUS, 81 BTA_HF_CLIENT_AT_CMER, 82 BTA_HF_CLIENT_AT_CHLD, 83 BTA_HF_CLIENT_AT_CMEE, 84 BTA_HF_CLIENT_AT_BIA, 85 BTA_HF_CLIENT_AT_CLIP, 86 BTA_HF_CLIENT_AT_CCWA, 87 BTA_HF_CLIENT_AT_COPS, 88 BTA_HF_CLIENT_AT_CLCC, 89 BTA_HF_CLIENT_AT_BVRA, 90 BTA_HF_CLIENT_AT_VGS, 91 BTA_HF_CLIENT_AT_VGM, 92 BTA_HF_CLIENT_AT_ATD, 93 BTA_HF_CLIENT_AT_BLDN, 94 BTA_HF_CLIENT_AT_ATA, 95 BTA_HF_CLIENT_AT_CHUP, 96 BTA_HF_CLIENT_AT_BTRH, 97 BTA_HF_CLIENT_AT_VTS, 98 BTA_HF_CLIENT_AT_BCC, 99 BTA_HF_CLIENT_AT_BCS, 100 BTA_HF_CLIENT_AT_CNUM, 101 BTA_HF_CLIENT_AT_NREC, 102 BTA_HF_CLIENT_AT_BINP, 103 BTA_HF_CLIENT_AT_BIND_SET_IND, 104 BTA_HF_CLIENT_AT_BIND_READ_SUPPORTED_IND, 105 BTA_HF_CLIENT_AT_BIND_READ_ENABLED_IND, 106 BTA_HF_CLIENT_AT_BIEV, 107 BTA_HF_CLIENT_AT_VENDOR_SPECIFIC, 108 BTA_HF_CLIENT_AT_ANDROID, 109 }; 110 111 /***************************************************************************** 112 * Data types 113 ****************************************************************************/ 114 /* data type for BTA_HF_CLIENT_API_OPEN_EVT */ 115 typedef struct { 116 BT_HDR_RIGID hdr; 117 RawAddress bd_addr; 118 uint16_t* handle; 119 } tBTA_HF_CLIENT_API_OPEN; 120 121 /* data type for BTA_HF_CLIENT_DISC_RESULT_EVT */ 122 typedef struct { 123 BT_HDR_RIGID hdr; 124 uint16_t status; 125 } tBTA_HF_CLIENT_DISC_RESULT; 126 127 /* data type for RFCOMM events */ 128 typedef struct { 129 BT_HDR_RIGID hdr; 130 uint16_t port_handle; 131 } tBTA_HF_CLIENT_RFC; 132 133 /* generic purpose data type for other events */ 134 typedef struct { 135 BT_HDR_RIGID hdr; 136 bool bool_val; 137 uint8_t uint8_val; 138 uint32_t uint32_val1; 139 uint32_t uint32_val2; 140 char str[BTA_HF_CLIENT_NUMBER_LEN + 1]; 141 } tBTA_HF_CLIENT_DATA_VAL; 142 143 /* union of all event datatypes */ 144 typedef union { 145 BT_HDR_RIGID hdr; 146 tBTA_HF_CLIENT_API_OPEN api_open; 147 tBTA_HF_CLIENT_DISC_RESULT disc_result; 148 tBTA_HF_CLIENT_RFC rfc; 149 tBTA_HF_CLIENT_DATA_VAL val; 150 151 } tBTA_HF_CLIENT_DATA; 152 153 /* First handle for the control block */ 154 #define BTA_HF_CLIENT_CB_FIRST_HANDLE 1 155 156 /* sco states */ 157 enum { 158 BTA_HF_CLIENT_SCO_SHUTDOWN_ST, /* no listening, no connection */ 159 BTA_HF_CLIENT_SCO_LISTEN_ST, /* listening */ 160 BTA_HF_CLIENT_SCO_OPENING_ST, /* connection opening */ 161 BTA_HF_CLIENT_SCO_OPEN_CL_ST, /* opening connection being closed */ 162 BTA_HF_CLIENT_SCO_OPEN_ST, /* open */ 163 BTA_HF_CLIENT_SCO_CLOSING_ST, /* closing */ 164 BTA_HF_CLIENT_SCO_CLOSE_OP_ST, /* closing sco being opened */ 165 BTA_HF_CLIENT_SCO_SHUTTING_ST /* sco shutting down */ 166 }; 167 168 /* type for HF control block */ 169 typedef struct { 170 // Fields useful for particular control block. 171 uint8_t handle; /* Handle of the control block to be 172 used by upper layer */ 173 RawAddress peer_addr; /* peer bd address */ 174 tSDP_DISCOVERY_DB* p_disc_db; /* pointer to discovery database */ 175 uint16_t conn_handle; /* RFCOMM handle of connected service */ 176 tBTA_HF_CLIENT_PEER_FEAT peer_features; /* peer device features */ 177 tBTA_HF_CLIENT_CHLD_FEAT chld_features; /* call handling features */ 178 uint16_t peer_version; /* profile version of peer device */ 179 uint8_t peer_scn; /* peer scn */ 180 uint8_t role; /* initiator/acceptor role */ 181 uint16_t sco_idx; /* SCO handle */ 182 uint8_t sco_state; /* SCO state variable */ 183 bool sco_close_rfc; /* true if also close RFCOMM after SCO */ 184 tBTM_SCO_CODEC_TYPE negotiated_codec; /* negotiated codec */ 185 bool svc_conn; /* set to true when service level connection is up */ 186 bool send_at_reply; /* set to true to notify framework about AT results */ 187 tBTA_HF_CLIENT_AT_CB at_cb; /* AT Parser control block */ 188 uint8_t state; /* state machine state */ 189 bool is_allocated; /* if the control block is already allocated */ 190 alarm_t* collision_timer; /* Collision timer */ 191 std::unordered_set<int> 192 peer_hf_indicators; /* peer supported hf indicator indices (HFP1.7) */ 193 std::unordered_set<int> 194 enabled_hf_indicators; /* enabled hf indicator indices (HFP1.7) */ 195 } tBTA_HF_CLIENT_CB; 196 197 typedef struct { 198 // Common fields, should be taken out. 199 uint32_t sdp_handle; 200 uint8_t scn; 201 tBTA_HF_CLIENT_CBACK* p_cback; /* application callback */ 202 tBTA_HF_CLIENT_FEAT features; /* features registered by application */ 203 uint16_t serv_handle; /* RFCOMM server handle */ 204 bool deregister; /* true if service shutting down */ 205 206 // Maximum number of control blocks supported by the BTA layer. 207 tBTA_HF_CLIENT_CB cb[HF_CLIENT_MAX_DEVICES]; 208 } tBTA_HF_CLIENT_CB_ARR; 209 210 extern tBTA_HF_CLIENT_CB_ARR bta_hf_client_cb_arr; 211 212 /***************************************************************************** 213 * Function prototypes 214 ****************************************************************************/ 215 216 /* main functions */ 217 extern tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_handle(uint16_t handle); 218 extern tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_bda( 219 const RawAddress& bd_addr); 220 extern tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_rfc_handle(uint16_t handle); 221 extern tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_sco_handle(uint16_t handle); 222 extern bool bta_hf_client_hdl_event(BT_HDR_RIGID* p_msg); 223 extern void bta_hf_client_sm_execute(uint16_t event, 224 tBTA_HF_CLIENT_DATA* p_data); 225 extern void bta_hf_client_slc_seq(tBTA_HF_CLIENT_CB* client_cb, bool error); 226 extern bool bta_hf_client_allocate_handle(const RawAddress& bd_addr, 227 uint16_t* p_handle); 228 extern void bta_hf_client_app_callback(uint16_t event, tBTA_HF_CLIENT* data); 229 extern void bta_hf_client_collision_cback(tBTA_SYS_CONN_STATUS status, 230 uint8_t id, uint8_t app_id, 231 const RawAddress& peer_addr); 232 extern void bta_hf_client_resume_open(tBTA_HF_CLIENT_CB* client_cb); 233 extern tBTA_STATUS bta_hf_client_api_enable(tBTA_HF_CLIENT_CBACK* p_cback, 234 tBTA_HF_CLIENT_FEAT features, 235 const char* p_service_name); 236 237 extern void bta_hf_client_api_disable(void); 238 extern void bta_hf_client_dump_statistics(int fd); 239 extern void bta_hf_client_cb_arr_init(void); 240 241 /* SDP functions */ 242 extern bool bta_hf_client_add_record(char* p_service_name, uint8_t scn, 243 tBTA_HF_CLIENT_FEAT features, 244 uint32_t sdp_handle); 245 extern void bta_hf_client_create_record(tBTA_HF_CLIENT_CB_ARR* client_cb, 246 const char* p_data); 247 extern void bta_hf_client_del_record(tBTA_HF_CLIENT_CB_ARR* client_cb); 248 extern bool bta_hf_client_sdp_find_attr(tBTA_HF_CLIENT_CB* client_cb); 249 extern void bta_hf_client_do_disc(tBTA_HF_CLIENT_CB* client_cb); 250 extern void bta_hf_client_free_db(tBTA_HF_CLIENT_DATA* p_data); 251 252 /* RFCOMM functions */ 253 extern void bta_hf_client_setup_port(uint16_t handle); 254 extern void bta_hf_client_start_server(); 255 extern void bta_hf_client_close_server(); 256 extern void bta_hf_client_rfc_do_open(tBTA_HF_CLIENT_DATA* p_data); 257 extern void bta_hf_client_rfc_do_close(tBTA_HF_CLIENT_DATA* p_data); 258 259 /* SCO functions */ 260 extern void bta_hf_client_sco_listen(tBTA_HF_CLIENT_DATA* p_data); 261 extern void bta_hf_client_sco_conn_open(tBTA_HF_CLIENT_DATA* p_data); 262 extern void bta_hf_client_sco_conn_close(tBTA_HF_CLIENT_DATA* p_data); 263 extern void bta_hf_client_sco_open(tBTA_HF_CLIENT_DATA* p_data); 264 extern void bta_hf_client_sco_close(tBTA_HF_CLIENT_DATA* p_data); 265 extern void bta_hf_client_sco_shutdown(tBTA_HF_CLIENT_CB* client_cb); 266 extern void bta_hf_client_cback_sco(tBTA_HF_CLIENT_CB* client_cb, 267 uint8_t event); 268 269 /* AT command functions */ 270 extern void bta_hf_client_at_parse(tBTA_HF_CLIENT_CB* client_cb, char* buf, 271 unsigned int len); 272 extern void bta_hf_client_send_at_brsf(tBTA_HF_CLIENT_CB* client_cb, 273 tBTA_HF_CLIENT_FEAT features); 274 extern void bta_hf_client_send_at_bac(tBTA_HF_CLIENT_CB* client_cb); 275 extern void bta_hf_client_send_at_cind(tBTA_HF_CLIENT_CB* client_cb, 276 bool status); 277 extern void bta_hf_client_send_at_cmer(tBTA_HF_CLIENT_CB* client_cb, 278 bool activate); 279 extern void bta_hf_client_send_at_chld(tBTA_HF_CLIENT_CB* client_cb, char cmd, 280 uint32_t idx); 281 extern void bta_hf_client_send_at_bind(tBTA_HF_CLIENT_CB* client_cb, int step); 282 extern void bta_hf_client_send_at_biev(tBTA_HF_CLIENT_CB* client_cb, int ind_id, 283 int value); 284 extern void bta_hf_client_send_at_clip(tBTA_HF_CLIENT_CB* client_cb, 285 bool activate); 286 extern void bta_hf_client_send_at_ccwa(tBTA_HF_CLIENT_CB* client_cb, 287 bool activate); 288 extern void bta_hf_client_send_at_cmee(tBTA_HF_CLIENT_CB* client_cb, 289 bool activate); 290 extern void bta_hf_client_send_at_cops(tBTA_HF_CLIENT_CB* client_cb, 291 bool query); 292 extern void bta_hf_client_send_at_clcc(tBTA_HF_CLIENT_CB* client_cb); 293 extern void bta_hf_client_send_at_bvra(tBTA_HF_CLIENT_CB* client_cb, 294 bool enable); 295 extern void bta_hf_client_send_at_vgs(tBTA_HF_CLIENT_CB* client_cb, 296 uint32_t volume); 297 extern void bta_hf_client_send_at_vgm(tBTA_HF_CLIENT_CB* client_cb, 298 uint32_t volume); 299 extern void bta_hf_client_send_at_atd(tBTA_HF_CLIENT_CB* client_cb, 300 char* number, uint32_t memory); 301 extern void bta_hf_client_send_at_bldn(tBTA_HF_CLIENT_CB* client_cb); 302 extern void bta_hf_client_send_at_ata(tBTA_HF_CLIENT_CB* client_cb); 303 extern void bta_hf_client_send_at_chup(tBTA_HF_CLIENT_CB* client_cb); 304 extern void bta_hf_client_send_at_btrh(tBTA_HF_CLIENT_CB* client_cb, bool query, 305 uint32_t val); 306 extern void bta_hf_client_send_at_vts(tBTA_HF_CLIENT_CB* client_cb, char code); 307 extern void bta_hf_client_send_at_bcc(tBTA_HF_CLIENT_CB* client_cb); 308 extern void bta_hf_client_send_at_bcs(tBTA_HF_CLIENT_CB* client_cb, 309 uint32_t codec); 310 extern void bta_hf_client_send_at_cnum(tBTA_HF_CLIENT_CB* client_cb); 311 extern void bta_hf_client_send_at_nrec(tBTA_HF_CLIENT_CB* client_cb); 312 extern void bta_hf_client_send_at_binp(tBTA_HF_CLIENT_CB* client_cb, 313 uint32_t action); 314 extern void bta_hf_client_send_at_bia(tBTA_HF_CLIENT_CB* client_cb); 315 316 /* AT API Functions */ 317 void bta_hf_client_at_init(tBTA_HF_CLIENT_CB* client_cb); 318 void bta_hf_client_at_reset(tBTA_HF_CLIENT_CB* client_cb); 319 extern void bta_hf_client_ind(tBTA_HF_CLIENT_CB* client_cb, 320 tBTA_HF_CLIENT_IND_TYPE type, uint16_t value); 321 extern void bta_hf_client_evt_val(tBTA_HF_CLIENT_CB* client_cb, 322 tBTA_HF_CLIENT_EVT type, uint16_t value); 323 extern void bta_hf_client_operator_name(tBTA_HF_CLIENT_CB* client_name, 324 char* name); 325 extern void bta_hf_client_clip(tBTA_HF_CLIENT_CB* client_cb, char* number); 326 extern void bta_hf_client_ccwa(tBTA_HF_CLIENT_CB* client_cb, char* number); 327 extern void bta_hf_client_at_result(tBTA_HF_CLIENT_CB* client_cb, 328 tBTA_HF_CLIENT_AT_RESULT_TYPE type, 329 uint16_t cme); 330 extern void bta_hf_client_clcc(tBTA_HF_CLIENT_CB* client_cb, uint32_t idx, 331 bool incoming, uint8_t status, bool mpty, 332 char* number); 333 extern void bta_hf_client_cnum(tBTA_HF_CLIENT_CB* client_cb, char* number, 334 uint16_t service); 335 extern void bta_hf_client_binp(tBTA_HF_CLIENT_CB* client_cb, char* number); 336 337 /* Action functions */ 338 extern void bta_hf_client_start_close(tBTA_HF_CLIENT_DATA* p_data); 339 extern void bta_hf_client_start_open(tBTA_HF_CLIENT_DATA* p_data); 340 extern void bta_hf_client_rfc_acp_open(tBTA_HF_CLIENT_DATA* p_data); 341 extern void bta_hf_client_rfc_open(tBTA_HF_CLIENT_DATA* p_data); 342 extern void bta_hf_client_rfc_fail(tBTA_HF_CLIENT_DATA* p_data); 343 extern void bta_hf_client_disc_fail(tBTA_HF_CLIENT_DATA* p_data); 344 extern void bta_hf_client_open_fail(tBTA_HF_CLIENT_DATA* p_data); 345 extern void bta_hf_client_rfc_close(tBTA_HF_CLIENT_DATA* p_data); 346 extern void bta_hf_client_disc_acp_res(tBTA_HF_CLIENT_DATA* p_data); 347 extern void bta_hf_client_rfc_data(tBTA_HF_CLIENT_DATA* p_data); 348 extern void bta_hf_client_disc_int_res(tBTA_HF_CLIENT_DATA* p_data); 349 extern void bta_hf_client_svc_conn_open(tBTA_HF_CLIENT_DATA* p_data); 350 351 /* Commands handling functions */ 352 extern void bta_hf_client_dial(tBTA_HF_CLIENT_DATA* p_data); 353 extern void bta_hf_client_send_at_cmd(tBTA_HF_CLIENT_DATA* p_data); 354