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      1 /*
      2  * Copyright (C) 2012-2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_INCLUDE_BT_HF_CLIENT_H
     18 #define ANDROID_INCLUDE_BT_HF_CLIENT_H
     19 
     20 __BEGIN_DECLS
     21 
     22 typedef enum {
     23     BTHF_CLIENT_CONNECTION_STATE_DISCONNECTED = 0,
     24     BTHF_CLIENT_CONNECTION_STATE_CONNECTING,
     25     BTHF_CLIENT_CONNECTION_STATE_CONNECTED,
     26     BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED,
     27     BTHF_CLIENT_CONNECTION_STATE_DISCONNECTING
     28 } bthf_client_connection_state_t;
     29 
     30 typedef enum {
     31     BTHF_CLIENT_AUDIO_STATE_DISCONNECTED = 0,
     32     BTHF_CLIENT_AUDIO_STATE_CONNECTING,
     33     BTHF_CLIENT_AUDIO_STATE_CONNECTED,
     34     BTHF_CLIENT_AUDIO_STATE_CONNECTED_MSBC,
     35 } bthf_client_audio_state_t;
     36 
     37 typedef enum {
     38     BTHF_CLIENT_VR_STATE_STOPPED = 0,
     39     BTHF_CLIENT_VR_STATE_STARTED
     40 } bthf_client_vr_state_t;
     41 
     42 typedef enum {
     43     BTHF_CLIENT_VOLUME_TYPE_SPK = 0,
     44     BTHF_CLIENT_VOLUME_TYPE_MIC
     45 } bthf_client_volume_type_t;
     46 
     47 typedef enum
     48 {
     49     BTHF_CLIENT_NETWORK_STATE_NOT_AVAILABLE = 0,
     50     BTHF_CLIENT_NETWORK_STATE_AVAILABLE
     51 } bthf_client_network_state_t;
     52 
     53 typedef enum
     54 {
     55     BTHF_CLIENT_SERVICE_TYPE_HOME = 0,
     56     BTHF_CLIENT_SERVICE_TYPE_ROAMING
     57 } bthf_client_service_type_t;
     58 
     59 typedef enum {
     60     BTHF_CLIENT_CALL_STATE_ACTIVE = 0,
     61     BTHF_CLIENT_CALL_STATE_HELD,
     62     BTHF_CLIENT_CALL_STATE_DIALING,
     63     BTHF_CLIENT_CALL_STATE_ALERTING,
     64     BTHF_CLIENT_CALL_STATE_INCOMING,
     65     BTHF_CLIENT_CALL_STATE_WAITING,
     66     BTHF_CLIENT_CALL_STATE_HELD_BY_RESP_HOLD,
     67 } bthf_client_call_state_t;
     68 
     69 typedef enum {
     70     BTHF_CLIENT_CALL_NO_CALLS_IN_PROGRESS = 0,
     71     BTHF_CLIENT_CALL_CALLS_IN_PROGRESS
     72 } bthf_client_call_t;
     73 
     74 typedef enum {
     75     BTHF_CLIENT_CALLSETUP_NONE = 0,
     76     BTHF_CLIENT_CALLSETUP_INCOMING,
     77     BTHF_CLIENT_CALLSETUP_OUTGOING,
     78     BTHF_CLIENT_CALLSETUP_ALERTING
     79 
     80 } bthf_client_callsetup_t;
     81 
     82 typedef enum {
     83     BTHF_CLIENT_CALLHELD_NONE = 0,
     84     BTHF_CLIENT_CALLHELD_HOLD_AND_ACTIVE,
     85     BTHF_CLIENT_CALLHELD_HOLD,
     86 } bthf_client_callheld_t;
     87 
     88 typedef enum {
     89     BTHF_CLIENT_RESP_AND_HOLD_HELD = 0,
     90     BTRH_CLIENT_RESP_AND_HOLD_ACCEPT,
     91     BTRH_CLIENT_RESP_AND_HOLD_REJECT,
     92 } bthf_client_resp_and_hold_t;
     93 
     94 typedef enum {
     95     BTHF_CLIENT_CALL_DIRECTION_OUTGOING = 0,
     96     BTHF_CLIENT_CALL_DIRECTION_INCOMING
     97 } bthf_client_call_direction_t;
     98 
     99 typedef enum {
    100     BTHF_CLIENT_CALL_MPTY_TYPE_SINGLE = 0,
    101     BTHF_CLIENT_CALL_MPTY_TYPE_MULTI
    102 } bthf_client_call_mpty_type_t;
    103 
    104 typedef enum {
    105     BTHF_CLIENT_CMD_COMPLETE_OK = 0,
    106     BTHF_CLIENT_CMD_COMPLETE_ERROR,
    107     BTHF_CLIENT_CMD_COMPLETE_ERROR_NO_CARRIER,
    108     BTHF_CLIENT_CMD_COMPLETE_ERROR_BUSY,
    109     BTHF_CLIENT_CMD_COMPLETE_ERROR_NO_ANSWER,
    110     BTHF_CLIENT_CMD_COMPLETE_ERROR_DELAYED,
    111     BTHF_CLIENT_CMD_COMPLETE_ERROR_BLACKLISTED,
    112     BTHF_CLIENT_CMD_COMPLETE_ERROR_CME
    113 } bthf_client_cmd_complete_t;
    114 
    115 typedef enum {
    116     BTHF_CLIENT_CALL_ACTION_CHLD_0 = 0,
    117     BTHF_CLIENT_CALL_ACTION_CHLD_1,
    118     BTHF_CLIENT_CALL_ACTION_CHLD_2,
    119     BTHF_CLIENT_CALL_ACTION_CHLD_3,
    120     BTHF_CLIENT_CALL_ACTION_CHLD_4,
    121     BTHF_CLIENT_CALL_ACTION_CHLD_1x,
    122     BTHF_CLIENT_CALL_ACTION_CHLD_2x,
    123     BTHF_CLIENT_CALL_ACTION_ATA,
    124     BTHF_CLIENT_CALL_ACTION_CHUP,
    125     BTHF_CLIENT_CALL_ACTION_BTRH_0,
    126     BTHF_CLIENT_CALL_ACTION_BTRH_1,
    127     BTHF_CLIENT_CALL_ACTION_BTRH_2,
    128 } bthf_client_call_action_t;
    129 
    130 typedef enum {
    131     BTHF_CLIENT_SERVICE_UNKNOWN = 0,
    132     BTHF_CLIENT_SERVICE_VOICE,
    133     BTHF_CLIENT_SERVICE_FAX
    134 } bthf_client_subscriber_service_type_t;
    135 
    136 typedef enum {
    137     BTHF_CLIENT_IN_BAND_RINGTONE_NOT_PROVIDED = 0,
    138     BTHF_CLIENT_IN_BAND_RINGTONE_PROVIDED,
    139 } bthf_client_in_band_ring_state_t;
    140 
    141 /* Peer features masks */
    142 #define BTHF_CLIENT_PEER_FEAT_3WAY   0x00000001  /* Three-way calling */
    143 #define BTHF_CLIENT_PEER_FEAT_ECNR   0x00000002  /* Echo cancellation and/or noise reduction */
    144 #define BTHF_CLIENT_PEER_FEAT_VREC   0x00000004  /* Voice recognition */
    145 #define BTHF_CLIENT_PEER_FEAT_INBAND 0x00000008  /* In-band ring tone */
    146 #define BTHF_CLIENT_PEER_FEAT_VTAG   0x00000010  /* Attach a phone number to a voice tag */
    147 #define BTHF_CLIENT_PEER_FEAT_REJECT 0x00000020  /* Ability to reject incoming call */
    148 #define BTHF_CLIENT_PEER_FEAT_ECS    0x00000040  /* Enhanced Call Status */
    149 #define BTHF_CLIENT_PEER_FEAT_ECC    0x00000080  /* Enhanced Call Control */
    150 #define BTHF_CLIENT_PEER_FEAT_EXTERR 0x00000100  /* Extended error codes */
    151 #define BTHF_CLIENT_PEER_FEAT_CODEC  0x00000200  /* Codec Negotiation */
    152 
    153 /* Peer call handling features masks */
    154 #define BTHF_CLIENT_CHLD_FEAT_REL           0x00000001  /* 0  Release waiting call or held calls */
    155 #define BTHF_CLIENT_CHLD_FEAT_REL_ACC       0x00000002  /* 1  Release active calls and accept other
    156                                                               (waiting or held) cal */
    157 #define BTHF_CLIENT_CHLD_FEAT_REL_X         0x00000004  /* 1x Release specified active call only */
    158 #define BTHF_CLIENT_CHLD_FEAT_HOLD_ACC      0x00000008  /* 2  Active calls on hold and accept other
    159                                                               (waiting or held) call */
    160 #define BTHF_CLIENT_CHLD_FEAT_PRIV_X        0x00000010  /* 2x Request private mode with specified
    161                                                               call (put the rest on hold) */
    162 #define BTHF_CLIENT_CHLD_FEAT_MERGE         0x00000020  /* 3  Add held call to multiparty */
    163 #define BTHF_CLIENT_CHLD_FEAT_MERGE_DETACH  0x00000040  /* 4  Connect two calls and leave
    164                                                               (disconnect from) multiparty */
    165 
    166 /** Callback for connection state change.
    167  *  state will have one of the values from BtHfConnectionState
    168  *  peer/chld_features are valid only for BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED state
    169  */
    170 typedef void (* bthf_client_connection_state_callback)(bthf_client_connection_state_t state,
    171                                                        unsigned int peer_feat,
    172                                                        unsigned int chld_feat,
    173                                                        bt_bdaddr_t *bd_addr);
    174 
    175 /** Callback for audio connection state change.
    176  *  state will have one of the values from BtHfAudioState
    177  */
    178 typedef void (* bthf_client_audio_state_callback)(bthf_client_audio_state_t state,
    179                                                   bt_bdaddr_t *bd_addr);
    180 
    181 /** Callback for VR connection state change.
    182  *  state will have one of the values from BtHfVRState
    183  */
    184 typedef void (* bthf_client_vr_cmd_callback)(bthf_client_vr_state_t state);
    185 
    186 /** Callback for network state change
    187  */
    188 typedef void (* bthf_client_network_state_callback) (bthf_client_network_state_t state);
    189 
    190 /** Callback for network roaming status change
    191  */
    192 typedef void (* bthf_client_network_roaming_callback) (bthf_client_service_type_t type);
    193 
    194 /** Callback for signal strength indication
    195  */
    196 typedef void (* bthf_client_network_signal_callback) (int signal_strength);
    197 
    198 /** Callback for battery level indication
    199  */
    200 typedef void (* bthf_client_battery_level_callback) (int battery_level);
    201 
    202 /** Callback for current operator name
    203  */
    204 typedef void (* bthf_client_current_operator_callback) (const char *name);
    205 
    206 /** Callback for call indicator
    207  */
    208 typedef void (* bthf_client_call_callback) (bthf_client_call_t call);
    209 
    210 /** Callback for callsetup indicator
    211  */
    212 typedef void (* bthf_client_callsetup_callback) (bthf_client_callsetup_t callsetup);
    213 
    214 /** Callback for callheld indicator
    215  */
    216 typedef void (* bthf_client_callheld_callback) (bthf_client_callheld_t callheld);
    217 
    218 /** Callback for response and hold
    219  */
    220 typedef void (* bthf_client_resp_and_hold_callback) (bthf_client_resp_and_hold_t resp_and_hold);
    221 
    222 /** Callback for Calling Line Identification notification
    223  *  Will be called only when there is an incoming call and number is provided.
    224  */
    225 typedef void (* bthf_client_clip_callback) (const char *number);
    226 
    227 /**
    228  * Callback for Call Waiting notification
    229  */
    230 typedef void (* bthf_client_call_waiting_callback) (const char *number);
    231 
    232 /**
    233  *  Callback for listing current calls. Can be called multiple time.
    234  *  If number is unknown NULL is passed.
    235  */
    236 typedef void (*bthf_client_current_calls) (int index, bthf_client_call_direction_t dir,
    237                                            bthf_client_call_state_t state,
    238                                            bthf_client_call_mpty_type_t mpty,
    239                                            const char *number);
    240 
    241 /** Callback for audio volume change
    242  */
    243 typedef void (*bthf_client_volume_change_callback) (bthf_client_volume_type_t type, int volume);
    244 
    245 /** Callback for command complete event
    246  *  cme is valid only for BTHF_CLIENT_CMD_COMPLETE_ERROR_CME type
    247  */
    248 typedef void (*bthf_client_cmd_complete_callback) (bthf_client_cmd_complete_t type, int cme);
    249 
    250 /** Callback for subscriber information
    251  */
    252 typedef void (* bthf_client_subscriber_info_callback) (const char *name,
    253                                                        bthf_client_subscriber_service_type_t type);
    254 
    255 /** Callback for in-band ring tone settings
    256  */
    257 typedef void (* bthf_client_in_band_ring_tone_callback) (bthf_client_in_band_ring_state_t state);
    258 
    259 /**
    260  * Callback for requested number from AG
    261  */
    262 typedef void (* bthf_client_last_voice_tag_number_callback) (const char *number);
    263 
    264 /**
    265  * Callback for sending ring indication to app
    266  */
    267 typedef void (* bthf_client_ring_indication_callback) (void);
    268 
    269 /** BT-HF callback structure. */
    270 typedef struct {
    271     /** set to sizeof(BtHfClientCallbacks) */
    272     size_t      size;
    273     bthf_client_connection_state_callback  connection_state_cb;
    274     bthf_client_audio_state_callback       audio_state_cb;
    275     bthf_client_vr_cmd_callback            vr_cmd_cb;
    276     bthf_client_network_state_callback     network_state_cb;
    277     bthf_client_network_roaming_callback   network_roaming_cb;
    278     bthf_client_network_signal_callback    network_signal_cb;
    279     bthf_client_battery_level_callback     battery_level_cb;
    280     bthf_client_current_operator_callback  current_operator_cb;
    281     bthf_client_call_callback              call_cb;
    282     bthf_client_callsetup_callback         callsetup_cb;
    283     bthf_client_callheld_callback          callheld_cb;
    284     bthf_client_resp_and_hold_callback     resp_and_hold_cb;
    285     bthf_client_clip_callback              clip_cb;
    286     bthf_client_call_waiting_callback      call_waiting_cb;
    287     bthf_client_current_calls              current_calls_cb;
    288     bthf_client_volume_change_callback     volume_change_cb;
    289     bthf_client_cmd_complete_callback      cmd_complete_cb;
    290     bthf_client_subscriber_info_callback   subscriber_info_cb;
    291     bthf_client_in_band_ring_tone_callback in_band_ring_tone_cb;
    292     bthf_client_last_voice_tag_number_callback last_voice_tag_number_callback;
    293     bthf_client_ring_indication_callback   ring_indication_cb;
    294 } bthf_client_callbacks_t;
    295 
    296 /** Represents the standard BT-HF interface. */
    297 typedef struct {
    298 
    299     /** set to sizeof(BtHfClientInterface) */
    300     size_t size;
    301     /**
    302      * Register the BtHf callbacks
    303      */
    304     bt_status_t (*init)(bthf_client_callbacks_t* callbacks);
    305 
    306     /** connect to audio gateway */
    307     bt_status_t (*connect)(bt_bdaddr_t *bd_addr);
    308 
    309     /** disconnect from audio gateway */
    310     bt_status_t (*disconnect)(bt_bdaddr_t *bd_addr);
    311 
    312     /** create an audio connection */
    313     bt_status_t (*connect_audio)(bt_bdaddr_t *bd_addr);
    314 
    315     /** close the audio connection */
    316     bt_status_t (*disconnect_audio)(bt_bdaddr_t *bd_addr);
    317 
    318     /** start voice recognition */
    319     bt_status_t (*start_voice_recognition)(void);
    320 
    321     /** stop voice recognition */
    322     bt_status_t (*stop_voice_recognition)(void);
    323 
    324     /** volume control */
    325     bt_status_t (*volume_control) (bthf_client_volume_type_t type, int volume);
    326 
    327     /** place a call with number a number
    328      * if number is NULL last called number is called (aka re-dial)*/
    329     bt_status_t (*dial) (const char *number);
    330 
    331     /** place a call with number specified by location (speed dial) */
    332     bt_status_t (*dial_memory) (int location);
    333 
    334     /** perform specified call related action
    335      * idx is limited only for enhanced call control related action
    336      */
    337     bt_status_t (*handle_call_action) (bthf_client_call_action_t action, int idx);
    338 
    339     /** query list of current calls */
    340     bt_status_t (*query_current_calls) (void);
    341 
    342     /** query name of current selected operator */
    343     bt_status_t (*query_current_operator_name) (void);
    344 
    345     /** Retrieve subscriber information */
    346     bt_status_t (*retrieve_subscriber_info) (void);
    347 
    348     /** Send DTMF code*/
    349     bt_status_t (*send_dtmf) (char code);
    350 
    351     /** Request a phone number from AG corresponding to last voice tag recorded */
    352     bt_status_t (*request_last_voice_tag_number) (void);
    353 
    354     /** Closes the interface. */
    355     void (*cleanup)(void);
    356 
    357     /** Send AT Command. */
    358     bt_status_t (*send_at_cmd) (int cmd, int val1, int val2, const char *arg);
    359 } bthf_client_interface_t;
    360 
    361 __END_DECLS
    362 
    363 #endif /* ANDROID_INCLUDE_BT_HF_CLIENT_H */
    364