| /****************************************************************************** |
| * |
| * Copyright 2003-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This is the private interface file for the BTA audio gateway. |
| * |
| ******************************************************************************/ |
| #ifndef BTA_AG_INT_H |
| #define BTA_AG_INT_H |
| |
| #include <cstdint> |
| |
| #include "bta/ag/bta_ag_at.h" |
| #include "bta/include/bta_ag_api.h" |
| #include "bta/include/bta_api.h" |
| #include "bta/sys/bta_sys.h" |
| #include "stack/include/bt_hdr.h" |
| #include "types/raw_address.h" |
| |
| /***************************************************************************** |
| * Constants |
| ****************************************************************************/ |
| /* Time to wait for retry in case of collision */ |
| #ifndef BTA_AG_COLLISION_TIMEOUT_MS |
| #define BTA_AG_COLLISION_TIMEOUT_MS (2 * 1000) /* 2 seconds */ |
| #endif |
| |
| /* RFCOMM MTU SIZE */ |
| #define BTA_AG_MTU 256 |
| |
| /* Max number of peer and local HF indicators */ |
| #define BTA_AG_MAX_NUM_PEER_HF_IND 20 |
| #define BTA_AG_MAX_NUM_LOCAL_HF_IND 4 |
| |
| /* Internal profile indexes */ |
| #define BTA_AG_HSP 0 /* index for HSP */ |
| #define BTA_AG_HFP 1 /* index for HFP */ |
| #define BTA_AG_NUM_IDX 2 /* number of profile indexes */ |
| |
| /* profile role for connection */ |
| #define BTA_AG_ACP 0 /* accepted connection */ |
| #define BTA_AG_INT 1 /* initiating connection */ |
| |
| #define BTA_AG_SDP_FEAT_SPEC \ |
| (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR | BTA_AG_FEAT_VREC | \ |
| BTA_AG_FEAT_INBAND | BTA_AG_FEAT_VTAG) |
| |
| /* Timeout for alarm in 2018 toyota camry carkit workaround */ |
| #define BTA_AG_BIND_TIMEOUT_MS 500 |
| |
| enum { |
| /* these events are handled by the state machine */ |
| BTA_AG_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_AG), |
| BTA_AG_API_DEREGISTER_EVT, |
| BTA_AG_API_OPEN_EVT, |
| BTA_AG_API_CLOSE_EVT, |
| BTA_AG_API_AUDIO_OPEN_EVT, |
| BTA_AG_API_AUDIO_CLOSE_EVT, |
| BTA_AG_API_RESULT_EVT, |
| BTA_AG_API_SETCODEC_EVT, |
| BTA_AG_RFC_OPEN_EVT, |
| BTA_AG_RFC_CLOSE_EVT, |
| BTA_AG_RFC_SRV_CLOSE_EVT, |
| BTA_AG_RFC_DATA_EVT, |
| BTA_AG_SCO_OPEN_EVT, |
| BTA_AG_SCO_CLOSE_EVT, |
| BTA_AG_DISC_ACP_RES_EVT, |
| BTA_AG_DISC_INT_RES_EVT, |
| BTA_AG_DISC_OK_EVT, |
| BTA_AG_DISC_FAIL_EVT, |
| BTA_AG_RING_TIMEOUT_EVT, |
| BTA_AG_SVC_TIMEOUT_EVT, |
| BTA_AG_COLLISION_EVT, |
| BTA_AG_MAX_EVT, |
| }; |
| |
| /* Actions to perform after a SCO event */ |
| enum { |
| BTA_AG_POST_SCO_NONE, /* no action */ |
| BTA_AG_POST_SCO_CLOSE_RFC, /* close RFCOMM channel after SCO closes */ |
| BTA_AG_POST_SCO_RING, /* send RING result code after SCO opens */ |
| BTA_AG_POST_SCO_CALL_CONN, /* send call indicators after SCO opens/closes */ |
| BTA_AG_POST_SCO_CALL_ORIG, /* send call indicators after SCO closes */ |
| BTA_AG_POST_SCO_CALL_END, /* send call indicators after SCO closes */ |
| BTA_AG_POST_SCO_CALL_END_INCALL /* send call indicators for end call & |
| incoming call after SCO closes */ |
| }; |
| |
| /* sco states */ |
| typedef enum : uint8_t { |
| BTA_AG_SCO_SHUTDOWN_ST, /* no sco listening, all sco connections closed */ |
| BTA_AG_SCO_LISTEN_ST, /* sco listening */ |
| BTA_AG_SCO_CODEC_ST, /* sco codec negotiation */ |
| BTA_AG_SCO_OPENING_ST, /* sco connection opening */ |
| BTA_AG_SCO_OPEN_CL_ST, /* opening sco connection being closed */ |
| BTA_AG_SCO_OPEN_XFER_ST, /* opening sco connection being transferred */ |
| BTA_AG_SCO_OPEN_ST, /* sco open */ |
| BTA_AG_SCO_CLOSING_ST, /* sco closing */ |
| BTA_AG_SCO_CLOSE_OP_ST, /* closing sco being opened */ |
| BTA_AG_SCO_CLOSE_XFER_ST, /* closing sco being transferred */ |
| BTA_AG_SCO_SHUTTING_ST /* sco shutting down */ |
| } tBTA_AG_SCO; |
| |
| /***************************************************************************** |
| * Data types |
| ****************************************************************************/ |
| |
| /* data type for BTA_AG_API_REGISTER_EVT */ |
| typedef struct { |
| char p_name[2][BTA_SERVICE_NAME_LEN + 1]; |
| tBTA_SERVICE_MASK services; |
| tBTA_AG_FEAT features; |
| uint8_t app_id; |
| } tBTA_AG_API_REGISTER; |
| |
| /* data type for BTA_AG_API_OPEN_EVT */ |
| typedef struct { |
| RawAddress bd_addr; |
| } tBTA_AG_API_OPEN; |
| |
| /* data type for BTA_AG_API_RESULT_EVT */ |
| typedef struct { |
| tBTA_AG_RES result; |
| tBTA_AG_RES_DATA data; |
| std::string ToString() const { |
| return base::StringPrintf("result:%s", bta_ag_result_text(result).c_str()); |
| } |
| } tBTA_AG_API_RESULT; |
| |
| /* data type for BTA_AG_API_SETCODEC_EVT */ |
| typedef struct { |
| tBTA_AG_PEER_CODEC codec; |
| } tBTA_AG_API_SETCODEC; |
| |
| /* data type for BTA_AG_DISC_RESULT_EVT */ |
| typedef struct { |
| uint16_t status; |
| } tBTA_AG_DISC_RESULT; |
| |
| /* data type for RFCOMM events */ |
| typedef struct { |
| uint16_t port_handle; |
| } tBTA_AG_RFC; |
| |
| /* union of all event datatypes */ |
| union tBTA_AG_DATA { |
| tBTA_AG_API_REGISTER api_register; |
| tBTA_AG_API_OPEN api_open; |
| tBTA_AG_API_RESULT api_result; |
| tBTA_AG_API_SETCODEC api_setcodec; |
| tBTA_AG_DISC_RESULT disc_result; |
| tBTA_AG_RFC rfc; |
| static const tBTA_AG_DATA kEmpty; |
| |
| /** |
| * Check if two tBTA_AG_DATA are equal in memory |
| * |
| * @param rhs other tBTA_AG_DATA |
| * @return true if both unions are equal in memory |
| */ |
| bool operator==(const tBTA_AG_DATA& rhs) const { |
| return (std::memcmp(this, &rhs, sizeof(tBTA_AG_DATA)) == 0); |
| } |
| |
| /** |
| * Check if this union is empty by comparing it to the kEmpty constant |
| * |
| * @return true if this union is empty |
| */ |
| bool IsEmpty() const { return *this == kEmpty; } |
| }; |
| |
| /* type for each profile */ |
| typedef struct { |
| uint32_t sdp_handle; |
| uint8_t scn; |
| } tBTA_AG_PROFILE; |
| |
| typedef enum { |
| BTA_AG_SCO_MSBC_SETTINGS_T2 = 0, /* preferred/default when codec is mSBC */ |
| BTA_AG_SCO_MSBC_SETTINGS_T1, |
| } tBTA_AG_SCO_MSBC_SETTINGS; |
| |
| /* type for each service control block */ |
| struct tBTA_AG_SCB { |
| char clip[BTA_AG_AT_MAX_LEN + 1]; /* number string used for CLIP */ |
| uint16_t serv_handle[BTA_AG_NUM_IDX]; /* RFCOMM server handles */ |
| tBTA_AG_AT_CB at_cb; /* AT command interpreter */ |
| RawAddress peer_addr; /* peer bd address */ |
| tSDP_DISCOVERY_DB* p_disc_db; /* pointer to discovery database */ |
| tBTA_SERVICE_MASK reg_services; /* services specified in register API */ |
| tBTA_SERVICE_MASK open_services; /* services specified in open API */ |
| uint16_t conn_handle; /* RFCOMM handle of connected service */ |
| tBTA_AG_FEAT features; /* features registered by application */ |
| tBTA_AG_FEAT masked_features; /* local BRSF features for this connection */ |
| tBTA_AG_PEER_FEAT peer_features; /* peer device features */ |
| uint16_t peer_sdp_features; /* peer device SDP features */ |
| uint16_t peer_version; /* profile version of peer device */ |
| uint16_t hsp_version; /* HSP profile version before SDP */ |
| uint16_t sco_idx; /* SCO handle */ |
| bool in_use; /* scb in use */ |
| bool dealloc; /* true if service shutting down */ |
| bool clip_enabled; /* set to true if HF enables CLIP reporting */ |
| bool ccwa_enabled; /* set to true if HF enables CCWA reporting */ |
| bool cmer_enabled; /* set to true if HF enables CMER reporting */ |
| bool cmee_enabled; /* set to true if HF enables CME ERROR reporting */ |
| bool inband_enabled; /* set to true if inband ring enabled */ |
| bool svc_conn; /* set to true when service level connection up */ |
| uint8_t state; /* state machine state */ |
| uint8_t conn_service; /* connected service */ |
| uint8_t peer_scn; /* peer scn */ |
| uint8_t app_id; /* application id */ |
| uint8_t role; /* initiator/acceptor role */ |
| uint8_t post_sco; /* action to perform after sco event */ |
| uint8_t call_ind; /* CIEV call indicator value */ |
| uint8_t callsetup_ind; /* CIEV callsetup indicator value */ |
| uint8_t service_ind; /* CIEV service indicator value */ |
| uint8_t signal_ind; /* CIEV signal indicator value */ |
| uint8_t roam_ind; /* CIEV roam indicator value */ |
| uint8_t battchg_ind; /* CIEV battery charge indicator value */ |
| uint8_t callheld_ind; /* CIEV call held indicator value */ |
| uint32_t bia_masked_out; /* indicators HF does not want us to send */ |
| alarm_t* bind_timer; /* Timer for toyota camry 2018 carkit workaround */ |
| alarm_t* collision_timer; |
| alarm_t* ring_timer; |
| alarm_t* codec_negotiation_timer; |
| bool received_at_bac; /* indicate AT+BAC is received at least once */ |
| tBTA_AG_PEER_CODEC peer_codecs; /* codecs for eSCO supported by the peer */ |
| tBTA_AG_PEER_CODEC sco_codec; /* codec to be used for eSCO connection */ |
| tBTA_AG_PEER_CODEC |
| inuse_codec; /* codec being used for the current SCO connection */ |
| bool codec_updated; /* set to true whenever the app updates codec type */ |
| bool codec_fallback; /* If sco nego fails for mSBC, fallback to CVSD */ |
| tBTA_AG_SCO_MSBC_SETTINGS |
| codec_msbc_settings; /* settings to be used for the impending eSCO */ |
| |
| tBTA_AG_HF_IND |
| peer_hf_indicators[BTA_AG_MAX_NUM_PEER_HF_IND]; /* Peer supported |
| HF indicators */ |
| tBTA_AG_HF_IND |
| local_hf_indicators[BTA_AG_MAX_NUM_LOCAL_HF_IND]; /* Local supported |
| HF indicators */ |
| |
| std::string ToString() const { |
| return base::StringPrintf( |
| "codec_updated=%d, codec_fallback=%d, " |
| "sco_codec=%d, peer_codec=%d, msbc_settings=%d, device=%s", |
| codec_updated, codec_fallback, sco_codec, peer_codecs, |
| codec_msbc_settings, peer_addr.ToString().c_str()); |
| } |
| }; |
| |
| /* type for sco data */ |
| typedef struct { |
| tBTM_ESCO_CONN_REQ_EVT_DATA conn_data; /* SCO data for pending conn request */ |
| tBTA_AG_SCB* p_curr_scb; /* SCB associated with SCO connection */ |
| tBTA_AG_SCB* p_xfer_scb; /* SCB associated with SCO transfer */ |
| uint16_t cur_idx; /* SCO handle */ |
| tBTA_AG_SCO state; /* SCO state variable */ |
| bool is_local; /* SCO connection initiated locally or remotely */ |
| } tBTA_AG_SCO_CB; |
| |
| /* type for AG control block */ |
| typedef struct { |
| tBTA_AG_SCB scb[BTA_AG_MAX_NUM_CLIENTS]; /* service control blocks */ |
| tBTA_AG_PROFILE profile[BTA_AG_NUM_IDX]; /* profile-specific data */ |
| tBTA_AG_SCO_CB sco; /* SCO data */ |
| tBTA_AG_CBACK* p_cback; /* application callback */ |
| } tBTA_AG_CB; |
| |
| /***************************************************************************** |
| * Global data |
| ****************************************************************************/ |
| |
| /* constant lookup tables */ |
| extern const uint16_t bta_ag_uuid[BTA_AG_NUM_IDX]; |
| extern const uint8_t bta_ag_sec_id[BTA_AG_NUM_IDX]; |
| extern const tBTA_AG_AT_CMD* bta_ag_at_tbl[BTA_AG_NUM_IDX]; |
| |
| /* control block declaration */ |
| extern tBTA_AG_CB bta_ag_cb; |
| |
| /* config struct */ |
| extern const tBTA_AG_CFG* p_bta_ag_cfg; |
| extern const tBTA_AG_HF_IND bta_ag_local_hf_ind_cfg[]; |
| |
| /***************************************************************************** |
| * Function prototypes |
| ****************************************************************************/ |
| bool bta_ag_hdl_event(BT_HDR_RIGID* p_msg); |
| |
| /* API functions */ |
| extern void bta_ag_api_enable(tBTA_AG_CBACK* p_cback); |
| extern void bta_ag_api_disable(); |
| extern void bta_ag_api_set_active_device(const RawAddress& new_active_device); |
| extern void bta_ag_api_register(tBTA_SERVICE_MASK services, |
| tBTA_AG_FEAT features, |
| const std::vector<std::string>& service_names, |
| uint8_t app_id); |
| extern void bta_ag_api_result(uint16_t handle, tBTA_AG_RES result, |
| const tBTA_AG_RES_DATA& result_data); |
| |
| /* main functions */ |
| extern void bta_ag_scb_dealloc(tBTA_AG_SCB* p_scb); |
| extern uint16_t bta_ag_scb_to_idx(tBTA_AG_SCB* p_scb); |
| extern tBTA_AG_SCB* bta_ag_scb_by_idx(uint16_t idx); |
| extern uint8_t bta_ag_service_to_idx(tBTA_SERVICE_MASK services); |
| extern uint16_t bta_ag_idx_by_bdaddr(const RawAddress* peer_addr); |
| extern bool bta_ag_other_scb_open(tBTA_AG_SCB* p_curr_scb); |
| extern bool bta_ag_scb_open(tBTA_AG_SCB* p_curr_scb); |
| extern void bta_ag_sm_execute(tBTA_AG_SCB* p_scb, uint16_t event, |
| const tBTA_AG_DATA& data); |
| extern void bta_ag_sm_execute_by_handle(uint16_t handle, uint16_t event, |
| const tBTA_AG_DATA& data); |
| extern void bta_ag_collision_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, |
| uint8_t app_id, const RawAddress& peer_addr); |
| extern void bta_ag_resume_open(tBTA_AG_SCB* p_scb); |
| |
| /* SDP functions */ |
| extern bool bta_ag_add_record(uint16_t service_uuid, const char* p_service_name, |
| uint8_t scn, tBTA_AG_FEAT features, |
| uint32_t sdp_handle); |
| extern void bta_ag_create_records(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_del_records(tBTA_AG_SCB* p_scb); |
| extern bool bta_ag_sdp_find_attr(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); |
| extern void bta_ag_do_disc(tBTA_AG_SCB* p_scb, tBTA_SERVICE_MASK service); |
| extern void bta_ag_free_db(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| |
| /* RFCOMM functions */ |
| extern void bta_ag_start_servers(tBTA_AG_SCB* p_scb, |
| tBTA_SERVICE_MASK services); |
| extern void bta_ag_close_servers(tBTA_AG_SCB* p_scb, |
| tBTA_SERVICE_MASK services); |
| extern bool bta_ag_is_server_closed(tBTA_AG_SCB* p_scb); |
| extern void bta_ag_rfc_do_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_do_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| |
| /* SCO functions */ |
| extern bool bta_ag_sco_is_active_device(const RawAddress& bd_addr); |
| extern bool bta_ag_sco_is_open(tBTA_AG_SCB* p_scb); |
| extern bool bta_ag_sco_is_opening(tBTA_AG_SCB* p_scb); |
| extern void bta_ag_sco_conn_rsp(tBTA_AG_SCB* p_scb, |
| tBTM_ESCO_CONN_REQ_EVT_DATA* data); |
| |
| /* AT command functions */ |
| extern void bta_ag_at_hsp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, |
| uint8_t arg_type, char* p_arg, char* p_end, |
| int16_t int_arg); |
| extern void bta_ag_at_hfp_cback(tBTA_AG_SCB* p_scb, uint16_t cmd, |
| uint8_t arg_type, char* p_arg, char* p_end, |
| int16_t int_arg); |
| extern void bta_ag_at_err_cback(tBTA_AG_SCB* p_scb, bool unknown, |
| const char* p_arg); |
| extern bool bta_ag_inband_enabled(tBTA_AG_SCB* p_scb); |
| extern void bta_ag_send_call_inds(tBTA_AG_SCB* p_scb, tBTA_AG_RES result); |
| |
| /* Action functions */ |
| extern void bta_ag_register(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_deregister(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_start_dereg(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_start_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_start_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_disc_int_res(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_disc_acp_res(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_disc_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_open_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_fail(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_acp_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_rfc_data(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_listen(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_shutdown(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_conn_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_sco_conn_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_post_sco_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_post_sco_close(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_svc_conn_open(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_result(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_setcodec(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_send_ring(tBTA_AG_SCB* p_scb, const tBTA_AG_DATA& data); |
| extern void bta_ag_handle_collision(tBTA_AG_SCB* p_scb, |
| const tBTA_AG_DATA& data); |
| |
| /* Internal utility functions */ |
| extern void bta_ag_sco_codec_nego(tBTA_AG_SCB* p_scb, bool result); |
| extern void bta_ag_codec_negotiate(tBTA_AG_SCB* p_scb); |
| extern void bta_ag_send_bcs(tBTA_AG_SCB* p_scb); |
| extern void bta_ag_set_sco_allowed(bool value); |
| extern const RawAddress& bta_ag_get_active_device(); |
| extern void bta_clear_active_device(); |
| |
| #endif /* BTA_AG_INT_H */ |
