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