bta/include/bta_hf_client_api.h

/******************************************************************************
 *
 *  Copyright (c) 2014 The Android Open Source Project
 *  Copyright (C) 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 public interface file for the handsfree (HF role) subsystem
 *
 ******************************************************************************/
#ifndef BTA_HF_CLIENT_API_H
#define BTA_HF_CLIENT_API_H

#include "bta_api.h"

/*****************************************************************************
 *  Constants and data types
 ****************************************************************************/

/* HFP peer (AG) features*/
#define BTA_HF_CLIENT_PEER_FEAT_3WAY 0x00000001 /* Three-way calling */
#define BTA_HF_CLIENT_PEER_FEAT_ECNR \
  0x00000002 /* Echo cancellation and/or noise reduction */
#define BTA_HF_CLIENT_PEER_FEAT_VREC 0x00000004 /* Voice recognition */
#define BTA_HF_CLIENT_PEER_INBAND 0x00000008    /* In-band ring tone */
#define BTA_HF_CLIENT_PEER_VTAG \
  0x00000010 /* Attach a phone number to a voice tag */
#define BTA_HF_CLIENT_PEER_REJECT \
  0x00000020                              /* Ability to reject incoming call */
#define BTA_HF_CLIENT_PEER_ECS 0x00000040 /* Enhanced Call Status */
#define BTA_HF_CLIENT_PEER_ECC 0x00000080 /* Enhanced Call Control */
#define BTA_HF_CLIENT_PEER_EXTERR 0x00000100 /* Extended error codes */
#define BTA_HF_CLIENT_PEER_CODEC 0x00000200  /* Codec Negotiation */

typedef uint16_t tBTA_HF_CLIENT_PEER_FEAT;

/* HFP HF features */
#define BTA_HF_CLIENT_FEAT_ECNR \
  0x00000001 /* Echo cancellation and/or noise reduction */
#define BTA_HF_CLIENT_FEAT_3WAY \
  0x00000002 /* Call waiting and three-way calling */
#define BTA_HF_CLIENT_FEAT_CLI \
  0x00000004 /* Caller ID presentation capability */
#define BTA_HF_CLIENT_FEAT_VREC 0x00000008  /* Voice recognition activation */
#define BTA_HF_CLIENT_FEAT_VOL 0x00000010   /* Remote volume control */
#define BTA_HF_CLIENT_FEAT_ECS 0x00000020   /* Enhanced Call Status */
#define BTA_HF_CLIENT_FEAT_ECC 0x00000040   /* Enhanced Call Control */
#define BTA_HF_CLIENT_FEAT_CODEC 0x00000080 /* Codec Negotiation */

/* HFP HF extended call handling - masks not related to any spec */
#define BTA_HF_CLIENT_CHLD_REL \
  0x00000001 /* 0  Release waiting call or held calls */
#define BTA_HF_CLIENT_CHLD_REL_ACC                                             \
  0x00000002 /* 1  Release active calls and accept other (waiting or held) cal \
                */
#define BTA_HF_CLIENT_CHLD_REL_X 0x00000004 /* 1x Release x call*/
#define BTA_HF_CLIENT_CHLD_HOLD_ACC \
  0x00000008 /* 2  Active calls on hold and accept other call */
#define BTA_HF_CLIENT_CHLD_PRIV_X \
  0x00000010 /* 2x Active multiparty call on hold except call x */
#define BTA_HF_CLIENT_CHLD_MERGE               \
  0x00000020 /* 3  Add held call to multiparty \
                */
#define BTA_HF_CLIENT_CHLD_MERGE_DETACH \
  0x00000040 /* 4  Add held call to multiparty */

typedef uint16_t tBTA_HF_CLIENT_CHLD_FEAT;

/* HFP AG errors ot OK sent to HF Unit */
#define BTA_HF_CLIENT_AT_RESULT_OK 0
#define BTA_HF_CLIENT_AT_RESULT_ERROR 1
#define BTA_HF_CLIENT_AT_RESULT_NO_CARRIER 2
#define BTA_HF_CLIENT_AT_RESULT_BUSY 3
#define BTA_HF_CLIENT_AT_RESULT_NO_ANSWER 4
#define BTA_HF_CLIENT_AT_RESULT_DELAY 5
#define BTA_HF_CLIENT_AT_RESULT_BLACKLISTED 6
#define BTA_HF_CLIENT_AT_RESULT_CME 7

typedef uint8_t tBTA_HF_CLIENT_AT_RESULT_TYPE;

/* HF Client callback events */
#define BTA_HF_CLIENT_ENABLE_EVT 0     /* HF Client enabled */
#define BTA_HF_CLIENT_REGISTER_EVT 1   /* HF Client registered */
#define BTA_HF_CLIENT_OPEN_EVT 2       /* HF Client connection open */
#define BTA_HF_CLIENT_CLOSE_EVT 3      /* HF Client connection closed */
#define BTA_HF_CLIENT_CONN_EVT 4       /* Service level connection opened */
#define BTA_HF_CLIENT_AUDIO_OPEN_EVT 5 /* Audio connection open */
#define BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT \
  6 /* Audio connection with mSBC codec open */
#define BTA_HF_CLIENT_AUDIO_CLOSE_EVT 7 /* Audio connection closed */
#define BTA_HF_CLIENT_SPK_EVT 8         /* Speaker volume changed */
#define BTA_HF_CLIENT_MIC_EVT 9         /* Microphone volume changed */
#define BTA_HF_CLIENT_IND_EVT 10        /* Indicator */
#define BTA_HF_CLIENT_VOICE_REC_EVT \
  11 /* AG changed voice recognition setting */
#define BTA_HF_CLIENT_OPERATOR_NAME_EVT 12 /* Operator name acquired */
#define BTA_HF_CLIENT_CLIP_EVT 13      /* Calling line identification event */
#define BTA_HF_CLIENT_CCWA_EVT 14      /* Call waiting notification */
#define BTA_HF_CLIENT_AT_RESULT_EVT 15 /* Call waiting notification */
#define BTA_HF_CLIENT_CLCC_EVT 16      /* current call event */
#define BTA_HF_CLIENT_CNUM_EVT 17      /* subscriber information event */
#define BTA_HF_CLIENT_BTRH_EVT 18      /* bluetooth response and hold event */
#define BTA_HF_CLIENT_BSIR_EVT                                               \
  19                              /* in-band ring tone setting changed event \
                                     */
#define BTA_HF_CLIENT_BINP_EVT 20 /* binp number event */
#define BTA_HF_CLIENT_RING_INDICATION 21 /* HF Client ring indication */
#define BTA_HF_CLIENT_DISABLE_EVT 30     /* HF Client disabled */

typedef uint8_t tBTA_HF_CLIENT_EVT;

/* HF Client open status */
#define BTA_HF_CLIENT_SUCCESS 0        /* Connection successfully opened */
#define BTA_HF_CLIENT_FAIL_SDP 1       /* Open failed due to SDP */
#define BTA_HF_CLIENT_FAIL_RFCOMM 2    /* Open failed due to RFCOMM */
#define BTA_HF_CLIENT_FAIL_RESOURCES 3 /* out of resources failure  */

typedef uint8_t tBTA_HF_CLIENT_STATUS;

/* indicator type */
#define BTA_HF_CLIENT_IND_BATTCH 0    /* Battery charge indicator */
#define BTA_HF_CLIENT_IND_SIGNAL 1    /* Signal Strength indicator */
#define BTA_HF_CLIENT_IND_SERVICE 2   /* Service availability indicator */
#define BTA_HF_CLIENT_IND_CALL 3      /* Standard call status indicator*/
#define BTA_HF_CLIENT_IND_ROAM 4      /* Roaming status indicator */
#define BTA_HF_CLIENT_IND_CALLSETUP 5 /* Call setup status indicator */
#define BTA_HF_CLIENT_IND_CALLHELD 6  /* Call hold status indicator */

typedef uint8_t tBTA_HF_CLIENT_IND_TYPE;

/* AT commands */
#define BTA_HF_CLIENT_AT_CMD_VTS 0
#define BTA_HF_CLIENT_AT_CMD_BTRH 1
#define BTA_HF_CLIENT_AT_CMD_CHUP 2
#define BTA_HF_CLIENT_AT_CMD_CHLD 3
#define BTA_HF_CLIENT_AT_CMD_BCC 4
#define BTA_HF_CLIENT_AT_CMD_CNUM 5
#define BTA_HF_CLIENT_AT_CMD_ATA 6
#define BTA_HF_CLIENT_AT_CMD_COPS 7
#define BTA_HF_CLIENT_AT_CMD_ATD 8
#define BTA_HF_CLIENT_AT_CMD_VGM 9
#define BTA_HF_CLIENT_AT_CMD_VGS 10
#define BTA_HF_CLIENT_AT_CMD_BVRA 11
#define BTA_HF_CLIENT_AT_CMD_CLCC 12
#define BTA_HF_CLIENT_AT_CMD_BINP 13
#define BTA_HF_CLIENT_AT_CMD_BLDN 14
#define BTA_HF_CLIENT_AT_CMD_NREC 15

typedef uint8_t tBTA_HF_CLIENT_AT_CMD_TYPE;

/* data associated with BTA_HF_CLIENT_REGISTER_EVT */
typedef struct {
  BD_ADDR bd_addr;
  tBTA_HF_CLIENT_STATUS status;
} tBTA_HF_CLIENT_REGISTER;

/* data associated with BTA_HF_CLIENT_OPEN_EVT */
typedef struct {
  BD_ADDR bd_addr;
  uint16_t handle;  // Handle for client control block
  tBTA_HF_CLIENT_STATUS status;
} tBTA_HF_CLIENT_OPEN;

/* data associated with BTA_HF_CLIENT_CONN_EVT */
typedef struct {
  BD_ADDR bd_addr;
  tBTA_HF_CLIENT_PEER_FEAT peer_feat;
  tBTA_HF_CLIENT_CHLD_FEAT chld_feat;
} tBTA_HF_CLIENT_CONN;

/* data associated with BTA_HF_CLIENT_IND_EVT event */
typedef struct {
  BD_ADDR bd_addr;
  tBTA_HF_CLIENT_IND_TYPE type;
  uint16_t value;
} tBTA_HF_CLIENT_IND;

/* data associated with BTA_HF_CLIENT_OPERATOR_NAME_EVT */
#define BTA_HF_CLIENT_OPERATOR_NAME_LEN 16
typedef struct {
  BD_ADDR bd_addr;
  char name[BTA_HF_CLIENT_OPERATOR_NAME_LEN + 1];
} tBTA_HF_CLIENT_OPERATOR_NAME;

/* data associated with BTA_HF_CLIENT_CLIP_EVT  and BTA_HF_CLIENT_CCWA_EVT*/
#define BTA_HF_CLIENT_NUMBER_LEN 32
typedef struct {
  BD_ADDR bd_addr;
  char number[BTA_HF_CLIENT_NUMBER_LEN + 1];
} tBTA_HF_CLIENT_NUMBER;

/* data associated with BTA_HF_CLIENT_AT_RESULT_EVT event */
typedef struct {
  BD_ADDR bd_addr;
  tBTA_HF_CLIENT_AT_RESULT_TYPE type;
  uint16_t cme;
} tBTA_HF_CLIENT_AT_RESULT;

/* data associated with BTA_HF_CLIENT_CLCC_EVT event */
typedef struct {
  BD_ADDR bd_addr;
  uint32_t idx;
  bool inc;
  uint8_t status;
  bool mpty;
  bool number_present;
  char number[BTA_HF_CLIENT_NUMBER_LEN + 1];
} tBTA_HF_CLIENT_CLCC;

/* data associated with BTA_HF_CLIENT_CNUM_EVT event */
typedef struct {
  BD_ADDR bd_addr;
  uint16_t service;
  char number[BTA_HF_CLIENT_NUMBER_LEN + 1];
} tBTA_HF_CLIENT_CNUM;

/* data associated with other events */
typedef struct {
  BD_ADDR bd_addr;
  uint16_t value;
} tBTA_HF_CLIENT_VAL;

/* union of data associated with AG callback */
typedef union {
  // Common BD ADDR field for all tyepdefs
  BD_ADDR bd_addr;
  tBTA_HF_CLIENT_REGISTER reg;
  tBTA_HF_CLIENT_OPEN open;
  tBTA_HF_CLIENT_CONN conn;
  tBTA_HF_CLIENT_IND ind;
  tBTA_HF_CLIENT_VAL val;
  tBTA_HF_CLIENT_OPERATOR_NAME operator_name;
  tBTA_HF_CLIENT_NUMBER number;
  tBTA_HF_CLIENT_AT_RESULT result;
  tBTA_HF_CLIENT_CLCC clcc;
  tBTA_HF_CLIENT_CNUM cnum;
} tBTA_HF_CLIENT;

typedef uint32_t tBTA_HF_CLIENT_FEAT;

/* HF Client callback */
typedef void(tBTA_HF_CLIENT_CBACK)(tBTA_HF_CLIENT_EVT event,
                                   tBTA_HF_CLIENT* p_data);

/*****************************************************************************
 *  External Function Declarations
 ****************************************************************************/

/*******************************************************************************
 *
 * Function         BTA_HfClientEnable
 *
 * Description      Enable the HF CLient service. When the enable
 *                  operation is complete the callback function will be
 *                  called with a BTA_HF_CLIENT_ENABLE_EVT. This function must
 *                  be called before other function in the HF CLient API are
 *                  called.
 *
 * Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
 *
 ******************************************************************************/
tBTA_STATUS BTA_HfClientEnable(tBTA_HF_CLIENT_CBACK* p_cback, tBTA_SEC sec_mask,
                               tBTA_HF_CLIENT_FEAT features,
                               const char* p_service_name);

/*******************************************************************************
 *
 * Function         BTA_HfClientDisable
 *
 * Description      Disable the HF Client service.
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientDisable(void);

/*******************************************************************************
 *
 * Function         BTA_HfClientOpen
 *
 * Description      Opens a connection to an audio gateway.
 *                  When connection is open callback function is called
 *                  with a BTA_HF_CLIENT_OPEN_EVT. Only the data connection is
 *                  opened. The audio connection is not opened. The handle
 *                  is stored in p_handle and should be used for subsequent
 *                  calls to do any AT operations
 *
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientOpen(BD_ADDR bd_addr, tBTA_SEC sec_mask, uint16_t* p_handle);

/*******************************************************************************
 *
 * Function         BTA_HfClientClose
 *
 * Description      Close the current connection to an audio gateway.
 *                  Any current audio connection will also be closed
 *
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientClose(uint16_t handle);

/*******************************************************************************
 *
 * Function         BTA_HfCllientAudioOpen
 *
 * Description      Opens an audio connection to the currently connected
 *                 audio gateway
 *
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientAudioOpen(uint16_t handle);

/*******************************************************************************
 *
 * Function         BTA_HfClientAudioClose
 *
 * Description      Close the currently active audio connection to an audio
 *                  gateway. The data connection remains open
 *
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientAudioClose(uint16_t handle);

/*******************************************************************************
 *
 * Function         BTA_HfClientSendAT
 *
 * Description      send AT command
 *
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HfClientSendAT(uint16_t handle, tBTA_HF_CLIENT_AT_CMD_TYPE at,
                        uint32_t val1, uint32_t val2, const char* str);

/*******************************************************************************
 *
 * Function         BTA_HfClientDumpStatistics
 *
 * Description      Dump statistics about the various control blocks
 *                  and other relevant connection statistics
 *
 * Returns          Void
 *
 ******************************************************************************/
void BTA_HfClientDumpStatistics(int fd);

#endif /* BTA_HF_CLIENT_API_H */