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 tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_handle(uint16_t handle); 218 tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_bda(const RawAddress& bd_addr); 219 tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_rfc_handle(uint16_t handle); 220 tBTA_HF_CLIENT_CB* bta_hf_client_find_cb_by_sco_handle(uint16_t handle); 221 bool bta_hf_client_hdl_event(BT_HDR_RIGID* p_msg); 222 void bta_hf_client_sm_execute(uint16_t event, tBTA_HF_CLIENT_DATA* p_data); 223 void bta_hf_client_slc_seq(tBTA_HF_CLIENT_CB* client_cb, bool error); 224 bool bta_hf_client_allocate_handle(const RawAddress& bd_addr, 225 uint16_t* p_handle); 226 void bta_hf_client_app_callback(uint16_t event, tBTA_HF_CLIENT* data); 227 void bta_hf_client_collision_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, 228 uint8_t app_id, const RawAddress& peer_addr); 229 void bta_hf_client_resume_open(tBTA_HF_CLIENT_CB* client_cb); 230 tBTA_STATUS bta_hf_client_api_enable(tBTA_HF_CLIENT_CBACK* p_cback, 231 tBTA_HF_CLIENT_FEAT features, 232 const char* p_service_name); 233 234 void bta_hf_client_api_disable(void); 235 void bta_hf_client_dump_statistics(int fd); 236 void bta_hf_client_cb_arr_init(void); 237 238 /* SDP functions */ 239 bool bta_hf_client_add_record(const char* p_service_name, uint8_t scn, 240 tBTA_HF_CLIENT_FEAT features, 241 uint32_t sdp_handle); 242 void bta_hf_client_create_record(tBTA_HF_CLIENT_CB_ARR* client_cb, 243 const char* p_data); 244 void bta_hf_client_del_record(tBTA_HF_CLIENT_CB_ARR* client_cb); 245 bool bta_hf_client_sdp_find_attr(tBTA_HF_CLIENT_CB* client_cb); 246 void bta_hf_client_do_disc(tBTA_HF_CLIENT_CB* client_cb); 247 void bta_hf_client_free_db(tBTA_HF_CLIENT_DATA* p_data); 248 249 /* RFCOMM functions */ 250 void bta_hf_client_setup_port(uint16_t handle); 251 void bta_hf_client_start_server(); 252 void bta_hf_client_close_server(); 253 void bta_hf_client_rfc_do_open(tBTA_HF_CLIENT_DATA* p_data); 254 void bta_hf_client_rfc_do_close(tBTA_HF_CLIENT_DATA* p_data); 255 256 /* SCO functions */ 257 void bta_hf_client_sco_listen(tBTA_HF_CLIENT_DATA* p_data); 258 void bta_hf_client_sco_conn_open(tBTA_HF_CLIENT_DATA* p_data); 259 void bta_hf_client_sco_conn_close(tBTA_HF_CLIENT_DATA* p_data); 260 void bta_hf_client_sco_open(tBTA_HF_CLIENT_DATA* p_data); 261 void bta_hf_client_sco_close(tBTA_HF_CLIENT_DATA* p_data); 262 void bta_hf_client_sco_shutdown(tBTA_HF_CLIENT_CB* client_cb); 263 void bta_hf_client_cback_sco(tBTA_HF_CLIENT_CB* client_cb, uint8_t event); 264 265 /* AT command functions */ 266 void bta_hf_client_at_parse(tBTA_HF_CLIENT_CB* client_cb, char* buf, 267 unsigned int len); 268 void bta_hf_client_send_at_brsf(tBTA_HF_CLIENT_CB* client_cb, 269 tBTA_HF_CLIENT_FEAT features); 270 void bta_hf_client_send_at_bac(tBTA_HF_CLIENT_CB* client_cb); 271 void bta_hf_client_send_at_cind(tBTA_HF_CLIENT_CB* client_cb, bool status); 272 void bta_hf_client_send_at_cmer(tBTA_HF_CLIENT_CB* client_cb, bool activate); 273 void bta_hf_client_send_at_chld(tBTA_HF_CLIENT_CB* client_cb, char cmd, 274 uint32_t idx); 275 void bta_hf_client_send_at_bind(tBTA_HF_CLIENT_CB* client_cb, int step); 276 void bta_hf_client_send_at_biev(tBTA_HF_CLIENT_CB* client_cb, int ind_id, 277 int value); 278 void bta_hf_client_send_at_clip(tBTA_HF_CLIENT_CB* client_cb, bool activate); 279 void bta_hf_client_send_at_ccwa(tBTA_HF_CLIENT_CB* client_cb, bool activate); 280 void bta_hf_client_send_at_cmee(tBTA_HF_CLIENT_CB* client_cb, bool activate); 281 void bta_hf_client_send_at_cops(tBTA_HF_CLIENT_CB* client_cb, bool query); 282 void bta_hf_client_send_at_clcc(tBTA_HF_CLIENT_CB* client_cb); 283 void bta_hf_client_send_at_bvra(tBTA_HF_CLIENT_CB* client_cb, bool enable); 284 void bta_hf_client_send_at_vgs(tBTA_HF_CLIENT_CB* client_cb, uint32_t volume); 285 void bta_hf_client_send_at_vgm(tBTA_HF_CLIENT_CB* client_cb, uint32_t volume); 286 void bta_hf_client_send_at_atd(tBTA_HF_CLIENT_CB* client_cb, char* number, 287 uint32_t memory); 288 void bta_hf_client_send_at_bldn(tBTA_HF_CLIENT_CB* client_cb); 289 void bta_hf_client_send_at_ata(tBTA_HF_CLIENT_CB* client_cb); 290 void bta_hf_client_send_at_chup(tBTA_HF_CLIENT_CB* client_cb); 291 void bta_hf_client_send_at_btrh(tBTA_HF_CLIENT_CB* client_cb, bool query, 292 uint32_t val); 293 void bta_hf_client_send_at_vts(tBTA_HF_CLIENT_CB* client_cb, char code); 294 void bta_hf_client_send_at_bcc(tBTA_HF_CLIENT_CB* client_cb); 295 void bta_hf_client_send_at_bcs(tBTA_HF_CLIENT_CB* client_cb, uint32_t codec); 296 void bta_hf_client_send_at_cnum(tBTA_HF_CLIENT_CB* client_cb); 297 void bta_hf_client_send_at_nrec(tBTA_HF_CLIENT_CB* client_cb); 298 void bta_hf_client_send_at_binp(tBTA_HF_CLIENT_CB* client_cb, uint32_t action); 299 void bta_hf_client_send_at_bia(tBTA_HF_CLIENT_CB* client_cb); 300 301 /* AT API Functions */ 302 void bta_hf_client_at_init(tBTA_HF_CLIENT_CB* client_cb); 303 void bta_hf_client_at_reset(tBTA_HF_CLIENT_CB* client_cb); 304 void bta_hf_client_ind(tBTA_HF_CLIENT_CB* client_cb, 305 tBTA_HF_CLIENT_IND_TYPE type, uint16_t value); 306 void bta_hf_client_evt_val(tBTA_HF_CLIENT_CB* client_cb, 307 tBTA_HF_CLIENT_EVT type, uint16_t value); 308 void bta_hf_client_operator_name(tBTA_HF_CLIENT_CB* client_name, char* name); 309 void bta_hf_client_clip(tBTA_HF_CLIENT_CB* client_cb, char* number); 310 void bta_hf_client_ccwa(tBTA_HF_CLIENT_CB* client_cb, char* number); 311 void bta_hf_client_at_result(tBTA_HF_CLIENT_CB* client_cb, 312 tBTA_HF_CLIENT_AT_RESULT_TYPE type, uint16_t cme); 313 void bta_hf_client_clcc(tBTA_HF_CLIENT_CB* client_cb, uint32_t idx, 314 bool incoming, uint8_t status, bool mpty, char* number); 315 void bta_hf_client_cnum(tBTA_HF_CLIENT_CB* client_cb, char* number, 316 uint16_t service); 317 void bta_hf_client_binp(tBTA_HF_CLIENT_CB* client_cb, char* number); 318 319 /* Action functions */ 320 void bta_hf_client_start_close(tBTA_HF_CLIENT_DATA* p_data); 321 void bta_hf_client_start_open(tBTA_HF_CLIENT_DATA* p_data); 322 void bta_hf_client_rfc_acp_open(tBTA_HF_CLIENT_DATA* p_data); 323 void bta_hf_client_rfc_open(tBTA_HF_CLIENT_DATA* p_data); 324 void bta_hf_client_rfc_fail(tBTA_HF_CLIENT_DATA* p_data); 325 void bta_hf_client_disc_fail(tBTA_HF_CLIENT_DATA* p_data); 326 void bta_hf_client_open_fail(tBTA_HF_CLIENT_DATA* p_data); 327 void bta_hf_client_rfc_close(tBTA_HF_CLIENT_DATA* p_data); 328 void bta_hf_client_disc_acp_res(tBTA_HF_CLIENT_DATA* p_data); 329 void bta_hf_client_rfc_data(tBTA_HF_CLIENT_DATA* p_data); 330 void bta_hf_client_disc_int_res(tBTA_HF_CLIENT_DATA* p_data); 331 void bta_hf_client_svc_conn_open(tBTA_HF_CLIENT_DATA* p_data); 332 333 /* Commands handling functions */ 334 void bta_hf_client_dial(tBTA_HF_CLIENT_DATA* p_data); 335 void bta_hf_client_send_at_cmd(tBTA_HF_CLIENT_DATA* p_data); 336