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      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_sys.h"
     28 #include "bta_api.h"
     29 #include "bta_ag_api.h"
     30 #include "bta_ag_at.h"
     31 
     32 /* Send RING & CLIP in one AT cmd */
     33 #ifndef BTA_AG_MULTI_RESULT_INCLUDED
     34 #define BTA_AG_MULTI_RESULT_INCLUDED      FALSE
     35 #endif
     36 
     37 /* Replace : in VGS and VGM for HSP */
     38 #ifndef BTA_HSP_RESULT_REPLACE_COLON
     39 #define BTA_HSP_RESULT_REPLACE_COLON      TRUE
     40 #endif
     41 
     42 /*****************************************************************************
     43 **  Constants
     44 *****************************************************************************/
     45 #define HFP_VERSION_1_1         0x0101
     46 #define HFP_VERSION_1_5         0x0105
     47 #define HFP_VERSION_1_6         0x0106
     48 
     49 #define HSP_VERSION_1_0         0x0100
     50 #define HSP_VERSION_1_2         0x0102
     51 
     52 /* Number of SCBs (AG service instances that can be registered) */
     53 #ifndef BTA_AG_NUM_SCB
     54 #define BTA_AG_NUM_SCB          2
     55 #endif
     56 
     57 /* Timer to wait for retry in case of collision */
     58 #ifndef BTA_AG_COLLISION_TIMER
     59 #define BTA_AG_COLLISION_TIMER  2000
     60 #endif
     61 
     62 /* RFCOMM MTU SIZE */
     63 #define BTA_AG_MTU              256
     64 
     65 /* Internal profile indexes */
     66 #define BTA_AG_HSP              0       /* index for HSP */
     67 #define BTA_AG_HFP              1       /* index for HFP */
     68 #define BTA_AG_NUM_IDX          2       /* number of profile indexes */
     69 
     70 /* profile role for connection */
     71 #define BTA_AG_ACP              0       /* accepted connection */
     72 #define BTA_AG_INT              1       /* initiating connection */
     73 
     74 /* feature mask that matches spec */
     75 #define BTA_AG_BSRF_FEAT_SPEC        (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR    | \
     76                                       BTA_AG_FEAT_VREC | BTA_AG_FEAT_INBAND  | \
     77                                       BTA_AG_FEAT_VTAG | BTA_AG_FEAT_REJECT  | \
     78                                       BTA_AG_FEAT_ECS  | BTA_AG_FEAT_ECC     | \
     79                                       BTA_AG_FEAT_EXTERR | BTA_AG_FEAT_CODEC | \
     80                                       BTA_AG_FEAT_VOIP)
     81 
     82 #define BTA_AG_SDP_FEAT_SPEC         (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR    | \
     83                                       BTA_AG_FEAT_VREC | BTA_AG_FEAT_INBAND  | \
     84                                       BTA_AG_FEAT_VTAG)
     85 
     86 enum
     87 {
     88     /* these events are handled by the state machine */
     89     BTA_AG_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_AG),
     90     BTA_AG_API_DEREGISTER_EVT,
     91     BTA_AG_API_OPEN_EVT,
     92     BTA_AG_API_CLOSE_EVT,
     93     BTA_AG_API_AUDIO_OPEN_EVT,
     94     BTA_AG_API_AUDIO_CLOSE_EVT,
     95     BTA_AG_API_RESULT_EVT,
     96     BTA_AG_API_SETCODEC_EVT,
     97     BTA_AG_RFC_OPEN_EVT,
     98     BTA_AG_RFC_CLOSE_EVT,
     99     BTA_AG_RFC_SRV_CLOSE_EVT,
    100     BTA_AG_RFC_DATA_EVT,
    101     BTA_AG_SCO_OPEN_EVT,
    102     BTA_AG_SCO_CLOSE_EVT,
    103     BTA_AG_DISC_ACP_RES_EVT,
    104     BTA_AG_DISC_INT_RES_EVT,
    105     BTA_AG_DISC_OK_EVT,
    106     BTA_AG_DISC_FAIL_EVT,
    107     BTA_AG_CI_RX_WRITE_EVT,
    108     BTA_AG_RING_TOUT_EVT,
    109     BTA_AG_SVC_TOUT_EVT,
    110     BTA_AG_CI_SCO_DATA_EVT,
    111     BTA_AG_CI_SLC_READY_EVT,
    112     BTA_AG_MAX_EVT,
    113 
    114     /* these events are handled outside of the state machine */
    115     BTA_AG_API_ENABLE_EVT,
    116     BTA_AG_API_DISABLE_EVT
    117 };
    118 
    119 /* Actions to perform after a SCO event */
    120 enum
    121 {
    122     BTA_AG_POST_SCO_NONE,       /* no action */
    123     BTA_AG_POST_SCO_CLOSE_RFC,  /* close RFCOMM channel after SCO closes */
    124     BTA_AG_POST_SCO_RING,       /* send RING result code after SCO opens */
    125     BTA_AG_POST_SCO_CALL_CONN,  /* send call indicators after SCO opens/closes */
    126     BTA_AG_POST_SCO_CALL_ORIG,  /* send call indicators after SCO closes */
    127     BTA_AG_POST_SCO_CALL_END,   /* send call indicators after SCO closes */
    128     BTA_AG_POST_SCO_CALL_END_INCALL   /* send call indicators for end call & incoming call after SCO closes */
    129 };
    130 
    131 /* sco states */
    132 enum
    133 {
    134     BTA_AG_SCO_SHUTDOWN_ST,     /* no sco listening, all sco connections closed */
    135     BTA_AG_SCO_LISTEN_ST,       /* sco listening */
    136 #if (BTM_WBS_INCLUDED == TRUE )
    137     BTA_AG_SCO_CODEC_ST,        /* sco codec negotiation */
    138 #endif
    139     BTA_AG_SCO_OPENING_ST,      /* sco connection opening */
    140     BTA_AG_SCO_OPEN_CL_ST,      /* opening sco connection being closed */
    141     BTA_AG_SCO_OPEN_XFER_ST,    /* opening sco connection being transferred */
    142     BTA_AG_SCO_OPEN_ST,         /* sco open */
    143     BTA_AG_SCO_CLOSING_ST,      /* sco closing */
    144     BTA_AG_SCO_CLOSE_OP_ST,     /* closing sco being opened */
    145     BTA_AG_SCO_CLOSE_XFER_ST,   /* closing sco being transferred */
    146     BTA_AG_SCO_SHUTTING_ST      /* sco shutting down */
    147 };
    148 
    149 /*****************************************************************************
    150 **  Data types
    151 *****************************************************************************/
    152 
    153 /* data type for BTA_AG_API_ENABLE_EVT */
    154 typedef struct
    155 {
    156     BT_HDR              hdr;
    157     tBTA_AG_PARSE_MODE  parse_mode;
    158     tBTA_AG_CBACK      *p_cback;
    159 } tBTA_AG_API_ENABLE;
    160 
    161 /* data type for BTA_AG_API_REGISTER_EVT */
    162 typedef struct
    163 {
    164     BT_HDR              hdr;
    165     char                p_name[2][BTA_SERVICE_NAME_LEN+1];
    166     tBTA_SERVICE_MASK   services;
    167     tBTA_SEC            sec_mask;
    168     tBTA_AG_FEAT        features;
    169     UINT8               app_id;
    170 } tBTA_AG_API_REGISTER;
    171 
    172 /* data type for BTA_AG_API_OPEN_EVT */
    173 typedef struct
    174 {
    175     BT_HDR              hdr;
    176     BD_ADDR             bd_addr;
    177     tBTA_SERVICE_MASK   services;
    178     tBTA_SEC            sec_mask;
    179 } tBTA_AG_API_OPEN;
    180 
    181 /* data type for BTA_AG_API_RESULT_EVT */
    182 typedef struct
    183 {
    184     BT_HDR            hdr;
    185     tBTA_AG_RES       result;
    186     tBTA_AG_RES_DATA  data;
    187 } tBTA_AG_API_RESULT;
    188 
    189 /* data type for BTA_AG_API_SETCODEC_EVT */
    190 typedef struct
    191 {
    192     BT_HDR              hdr;
    193     tBTA_AG_PEER_CODEC  codec;
    194 } tBTA_AG_API_SETCODEC;
    195 
    196 /* data type for BTA_AG_DISC_RESULT_EVT */
    197 typedef struct
    198 {
    199     BT_HDR          hdr;
    200     UINT16          status;
    201 } tBTA_AG_DISC_RESULT;
    202 
    203 /* data type for RFCOMM events */
    204 typedef struct
    205 {
    206     BT_HDR          hdr;
    207     UINT16          port_handle;
    208 } tBTA_AG_RFC;
    209 
    210 /* data type for BTA_AG_CI_RX_WRITE_EVT */
    211 typedef struct
    212 {
    213     BT_HDR          hdr;
    214 //    char            p_data[BTA_AG_MTU+1];
    215 } tBTA_AG_CI_RX_WRITE;
    216 
    217 /* union of all event datatypes */
    218 typedef union
    219 {
    220     BT_HDR                  hdr;
    221     tBTA_AG_API_ENABLE      api_enable;
    222     tBTA_AG_API_REGISTER    api_register;
    223     tBTA_AG_API_OPEN        api_open;
    224     tBTA_AG_API_RESULT      api_result;
    225 #if (BTM_WBS_INCLUDED == TRUE )
    226     tBTA_AG_API_SETCODEC    api_setcodec;
    227 #endif
    228     tBTA_AG_DISC_RESULT     disc_result;
    229     tBTA_AG_RFC             rfc;
    230     tBTA_AG_CI_RX_WRITE     ci_rx_write;
    231 } tBTA_AG_DATA;
    232 
    233 /* type for each profile */
    234 typedef struct
    235 {
    236     UINT32          sdp_handle;
    237     UINT8           scn;
    238 } tBTA_AG_PROFILE;
    239 
    240 /* type for each service control block */
    241 typedef struct
    242 {
    243     char                clip[BTA_AG_AT_MAX_LEN+1]; /* number string used for CLIP */
    244     UINT16              serv_handle[BTA_AG_NUM_IDX]; /* RFCOMM server handles */
    245     tBTA_AG_AT_CB       at_cb;          /* AT command interpreter */
    246     TIMER_LIST_ENT      act_timer;     /* ring timer */
    247     BD_ADDR             peer_addr;      /* peer bd address */
    248     tSDP_DISCOVERY_DB   *p_disc_db;     /* pointer to discovery database */
    249     tBTA_SERVICE_MASK   reg_services;   /* services specified in register API */
    250     tBTA_SERVICE_MASK   open_services;  /* services specified in open API */
    251     UINT16              conn_handle;    /* RFCOMM handle of connected service */
    252     tBTA_SEC            serv_sec_mask;  /* server security mask */
    253     tBTA_SEC            cli_sec_mask;   /* client security mask */
    254     tBTA_AG_FEAT        features;       /* features registered by application */
    255     tBTA_AG_PEER_FEAT   peer_features;  /* peer device features */
    256     UINT16              peer_version;   /* profile version of peer device */
    257     UINT16              hsp_version;    /* HSP profile version */
    258 #if (BTM_WBS_INCLUDED == TRUE )
    259     tBTA_AG_PEER_CODEC  peer_codecs;    /* codecs for eSCO supported by the peer */
    260     tBTA_AG_PEER_CODEC  sco_codec;      /* codec to be used for eSCO connection */
    261     tBTA_AG_PEER_CODEC  inuse_codec;    /* codec being used for the current SCO connection */
    262     BOOLEAN             codec_updated;  /* set to TRUE whenever the app updates codec type */
    263     BOOLEAN             codec_fallback; /* If sco nego fails for mSBC, fallback to CVSD */
    264     TIMER_LIST_ENT      cn_timer;       /* codec negotiation timer */
    265 #endif
    266     UINT16              sco_idx;        /* SCO handle */
    267     BOOLEAN             in_use;         /* scb in use */
    268     BOOLEAN             dealloc;        /* TRUE if service shutting down */
    269     BOOLEAN             clip_enabled;   /* set to TRUE if HF enables CLIP reporting */
    270     BOOLEAN             ccwa_enabled;   /* set to TRUE if HF enables CCWA reporting */
    271     BOOLEAN             cmer_enabled;   /* set to TRUE if HF enables CMER reporting */
    272     BOOLEAN             cmee_enabled;   /* set to TRUE if HF enables CME ERROR reporting */
    273     BOOLEAN             inband_enabled; /* set to TRUE if inband ring enabled */
    274     BOOLEAN             svc_conn;       /* set to TRUE when service level connection up */
    275     TIMER_LIST_ENT      colli_timer;    /* Collision timer */
    276     BOOLEAN             colli_tmr_on;   /* TRUE if collision timer is active */
    277     UINT8               state;          /* state machine state */
    278     UINT8               conn_service;   /* connected service */
    279     UINT8               peer_scn;       /* peer scn */
    280     UINT8               app_id;         /* application id */
    281     UINT8               role;           /* initiator/acceptor role */
    282     UINT8               post_sco;       /* action to perform after sco event */
    283     UINT8               call_ind;       /* CIEV call indicator value */
    284     UINT8               callsetup_ind;  /* CIEV callsetup indicator value */
    285     UINT8               service_ind;    /* CIEV service indicator value */
    286     UINT8               signal_ind;     /* CIEV signal indicator value */
    287     UINT8               roam_ind;       /* CIEV roam indicator value */
    288     UINT8               battchg_ind;    /* CIEV battery charge indicator value */
    289     UINT8               callheld_ind;   /* CIEV call held indicator value */
    290     BOOLEAN             retry_with_sco_only; /* indicator to try with SCO only when eSCO fails */
    291     UINT32              bia_masked_out; /* indicators HF does not want us to send */
    292 } tBTA_AG_SCB;
    293 
    294 /* type for sco data */
    295 typedef struct
    296 {
    297     tBTM_ESCO_CONN_REQ_EVT_DATA  conn_data;     /* SCO data for pending conn request */
    298     tBTA_AG_SCB                 *p_curr_scb;    /* SCB associated with SCO connection */
    299     tBTA_AG_SCB                 *p_xfer_scb;    /* SCB associated with SCO transfer */
    300     UINT16                      cur_idx;        /* SCO handle */
    301     UINT8                       state;          /* SCO state variable */
    302     BOOLEAN                     param_updated;  /* if params were updated to non-default */
    303     tBTM_ESCO_PARAMS            params;         /* ESCO parameters */
    304 } tBTA_AG_SCO_CB;
    305 
    306 
    307 /* type for AG control block */
    308 typedef struct
    309 {
    310     tBTA_AG_SCB         scb[BTA_AG_NUM_SCB];        /* service control blocks */
    311     tBTA_AG_PROFILE     profile[BTA_AG_NUM_IDX];    /* profile-specific data */
    312     tBTA_AG_SCO_CB      sco;                        /* SCO data */
    313     tBTA_AG_CBACK       *p_cback;                   /* application callback */
    314     tBTA_AG_PARSE_MODE  parse_mode;                 /* parse/pass-through mode */
    315 } tBTA_AG_CB;
    316 
    317 /*****************************************************************************
    318 **  Global data
    319 *****************************************************************************/
    320 
    321 /* constant lookup tables */
    322 extern const UINT16 bta_ag_uuid[BTA_AG_NUM_IDX];
    323 extern const UINT8 bta_ag_sec_id[BTA_AG_NUM_IDX];
    324 extern const tBTA_AG_AT_CMD *bta_ag_at_tbl[BTA_AG_NUM_IDX];
    325 
    326 /* control block declaration */
    327 #if BTA_DYNAMIC_MEMORY == FALSE
    328 extern tBTA_AG_CB bta_ag_cb;
    329 #else
    330 extern tBTA_AG_CB *bta_ag_cb_ptr;
    331 #define bta_ag_cb (*bta_ag_cb_ptr)
    332 #endif
    333 
    334 /* config struct */
    335 extern tBTA_AG_CFG *p_bta_ag_cfg;
    336 
    337 /*****************************************************************************
    338 **  Function prototypes
    339 *****************************************************************************/
    340 
    341 /* main functions */
    342 extern void bta_ag_scb_dealloc(tBTA_AG_SCB *p_scb);
    343 extern UINT16 bta_ag_scb_to_idx(tBTA_AG_SCB *p_scb);
    344 extern tBTA_AG_SCB *bta_ag_scb_by_idx(UINT16 idx);
    345 extern UINT8 bta_ag_service_to_idx(tBTA_SERVICE_MASK services);
    346 extern UINT16 bta_ag_idx_by_bdaddr(BD_ADDR peer_addr);
    347 extern BOOLEAN bta_ag_other_scb_open(tBTA_AG_SCB *p_curr_scb);
    348 extern tBTA_AG_SCB *bta_ag_get_other_idle_scb (tBTA_AG_SCB *p_curr_scb);
    349 extern void bta_ag_sm_execute(tBTA_AG_SCB *p_scb, UINT16 event, tBTA_AG_DATA *p_data);
    350 extern BOOLEAN bta_ag_hdl_event(BT_HDR *p_msg);
    351 extern void bta_ag_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
    352                                     UINT8 app_id, BD_ADDR peer_addr);
    353 extern void bta_ag_resume_open (tBTA_AG_SCB *p_scb);
    354 
    355 /* SDP functions */
    356 extern BOOLEAN bta_ag_add_record(UINT16 service_uuid, char *p_service_name, UINT8 scn,
    357                                  tBTA_AG_FEAT features, UINT32 sdp_handle);
    358 extern void bta_ag_create_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    359 extern void bta_ag_del_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    360 extern BOOLEAN bta_ag_sdp_find_attr(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service);
    361 extern void bta_ag_do_disc(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service);
    362 extern void bta_ag_free_db(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    363 
    364 /* RFCOMM functions */
    365 extern void bta_ag_start_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services);
    366 extern void bta_ag_close_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services);
    367 extern BOOLEAN bta_ag_is_server_closed (tBTA_AG_SCB *p_scb);
    368 extern void bta_ag_rfc_do_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    369 extern void bta_ag_rfc_do_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    370 
    371 /* SCO functions */
    372 extern BOOLEAN bta_ag_sco_is_open(tBTA_AG_SCB *p_scb);
    373 extern BOOLEAN bta_ag_sco_is_opening(tBTA_AG_SCB *p_scb);
    374 extern void bta_ag_sco_conn_rsp(tBTA_AG_SCB *p_scb, tBTM_ESCO_CONN_REQ_EVT_DATA *p_data);
    375 
    376 /* AT command functions */
    377 extern void bta_ag_at_hsp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
    378                                 char *p_arg, INT16 int_arg);
    379 extern void bta_ag_at_hfp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
    380                                 char *p_arg, INT16 int_arg);
    381 extern void bta_ag_at_err_cback(tBTA_AG_SCB *p_scb, BOOLEAN unknown, char *p_arg);
    382 extern BOOLEAN bta_ag_inband_enabled(tBTA_AG_SCB *p_scb);
    383 extern void bta_ag_send_call_inds(tBTA_AG_SCB *p_scb, tBTA_AG_RES result);
    384 
    385 /* Action functions */
    386 extern void bta_ag_register(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    387 extern void bta_ag_deregister(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    388 extern void bta_ag_start_dereg(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    389 extern void bta_ag_start_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    390 extern void bta_ag_start_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    391 extern void bta_ag_disc_int_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    392 extern void bta_ag_disc_acp_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    393 extern void bta_ag_disc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    394 extern void bta_ag_open_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    395 extern void bta_ag_rfc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    396 extern void bta_ag_rfc_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    397 extern void bta_ag_rfc_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    398 extern void bta_ag_rfc_acp_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    399 extern void bta_ag_rfc_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    400 extern void bta_ag_sco_listen(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    401 extern void bta_ag_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    402 extern void bta_ag_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    403 #if (BTM_WBS_INCLUDED == TRUE )
    404 extern void bta_ag_sco_codec_nego(tBTA_AG_SCB *p_scb, BOOLEAN result);
    405 extern void bta_ag_codec_negotiate (tBTA_AG_SCB *p_scb);
    406 #endif
    407 extern void bta_ag_sco_shutdown(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    408 extern void bta_ag_sco_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    409 extern void bta_ag_sco_conn_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    410 extern void bta_ag_post_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    411 extern void bta_ag_post_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    412 extern void bta_ag_svc_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    413 extern void bta_ag_result(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    414 extern void bta_ag_setcodec(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    415 #if (BTM_WBS_INCLUDED == TRUE )
    416 extern void bta_ag_send_bcs(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    417 #endif
    418 extern void bta_ag_send_ring(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    419 extern void bta_ag_ci_sco_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    420 extern void bta_ag_set_esco_param(BOOLEAN set_reset, tBTM_ESCO_PARAMS *param);
    421 extern void bta_ag_ci_rx_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    422 extern void bta_ag_rcvd_slc_ready(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
    423 #endif /* BTA_AG_INT_H */
    424