summaryrefslogtreecommitdiffstats
path: root/include/hardware/bt_hf.h
blob: 7dcb40a4b2484b32c06403e80790754e2dc1b7bd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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.
 */

#ifndef ANDROID_INCLUDE_BT_HF_H
#define ANDROID_INCLUDE_BT_HF_H

__BEGIN_DECLS

/* AT response code - OK/Error */
typedef enum {
    BTHF_AT_RESPONSE_ERROR = 0,
    BTHF_AT_RESPONSE_OK
} bthf_at_response_t;

typedef enum {
    BTHF_CONNECTION_STATE_DISCONNECTED = 0,
    BTHF_CONNECTION_STATE_CONNECTING,
    BTHF_CONNECTION_STATE_CONNECTED,
    BTHF_CONNECTION_STATE_SLC_CONNECTED,
    BTHF_CONNECTION_STATE_DISCONNECTING
} bthf_connection_state_t;

typedef enum {
    BTHF_AUDIO_STATE_DISCONNECTED = 0,
    BTHF_AUDIO_STATE_CONNECTING,
    BTHF_AUDIO_STATE_CONNECTED,
    BTHF_AUDIO_STATE_DISCONNECTING
} bthf_audio_state_t;

typedef enum {
    BTHF_VR_STATE_STOPPED = 0,
    BTHF_VR_STATE_STARTED
} bthf_vr_state_t;

typedef enum {
    BTHF_VOLUME_TYPE_SPK = 0,
    BTHF_VOLUME_TYPE_MIC
} bthf_volume_type_t;

/* Noise Reduction and Echo Cancellation */
typedef enum
{
    BTHF_NREC_STOP,
    BTHF_NREC_START
} bthf_nrec_t;

/* WBS codec setting */
typedef enum
{
   BTHF_WBS_NONE,
   BTHF_WBS_NO,
   BTHF_WBS_YES
}bthf_wbs_config_t;

/* CHLD - Call held handling */
typedef enum
{
    BTHF_CHLD_TYPE_RELEASEHELD,              // Terminate all held or set UDUB("busy") to a waiting call
    BTHF_CHLD_TYPE_RELEASEACTIVE_ACCEPTHELD, // Terminate all active calls and accepts a waiting/held call
    BTHF_CHLD_TYPE_HOLDACTIVE_ACCEPTHELD,    // Hold all active calls and accepts a waiting/held call
    BTHF_CHLD_TYPE_ADDHELDTOCONF,            // Add all held calls to a conference
} bthf_chld_type_t;

/** Callback for connection state change.
 *  state will have one of the values from BtHfConnectionState
 */
typedef void (* bthf_connection_state_callback)(bthf_connection_state_t state, bt_bdaddr_t *bd_addr);

/** Callback for audio connection state change.
 *  state will have one of the values from BtHfAudioState
 */
typedef void (* bthf_audio_state_callback)(bthf_audio_state_t state, bt_bdaddr_t *bd_addr);

/** Callback for VR connection state change.
 *  state will have one of the values from BtHfVRState
 */
typedef void (* bthf_vr_cmd_callback)(bthf_vr_state_t state, bt_bdaddr_t *bd_addr);

/** Callback for answer incoming call (ATA)
 */
typedef void (* bthf_answer_call_cmd_callback)(bt_bdaddr_t *bd_addr);

/** Callback for disconnect call (AT+CHUP)
 */
typedef void (* bthf_hangup_call_cmd_callback)(bt_bdaddr_t *bd_addr);

/** Callback for disconnect call (AT+CHUP)
 *  type will denote Speaker/Mic gain (BtHfVolumeControl).
 */
typedef void (* bthf_volume_cmd_callback)(bthf_volume_type_t type, int volume, bt_bdaddr_t *bd_addr);

/** Callback for dialing an outgoing call
 *  If number is NULL, redial
 */
typedef void (* bthf_dial_call_cmd_callback)(char *number, bt_bdaddr_t *bd_addr);

/** Callback for sending DTMF tones
 *  tone contains the dtmf character to be sent
 */
typedef void (* bthf_dtmf_cmd_callback)(char tone, bt_bdaddr_t *bd_addr);

/** Callback for enabling/disabling noise reduction/echo cancellation
 *  value will be 1 to enable, 0 to disable
 */
typedef void (* bthf_nrec_cmd_callback)(bthf_nrec_t nrec, bt_bdaddr_t *bd_addr);

/** Callback for AT+BCS and event from BAC
 *  WBS enable, WBS disable
 */
typedef void (* bthf_wbs_callback)(bthf_wbs_config_t wbs, bt_bdaddr_t *bd_addr);

/** Callback for call hold handling (AT+CHLD)
 *  value will contain the call hold command (0, 1, 2, 3)
 */
typedef void (* bthf_chld_cmd_callback)(bthf_chld_type_t chld, bt_bdaddr_t *bd_addr);

/** Callback for CNUM (subscriber number)
 */
typedef void (* bthf_cnum_cmd_callback)(bt_bdaddr_t *bd_addr);

/** Callback for indicators (CIND)
 */
typedef void (* bthf_cind_cmd_callback)(bt_bdaddr_t *bd_addr);

/** Callback for operator selection (COPS)
 */
typedef void (* bthf_cops_cmd_callback)(bt_bdaddr_t *bd_addr);

/** Callback for call list (AT+CLCC)
 */
typedef void (* bthf_clcc_cmd_callback) (bt_bdaddr_t *bd_addr);

/** Callback for unknown AT command recd from HF
 *  at_string will contain the unparsed AT string
 */
typedef void (* bthf_unknown_at_cmd_callback)(char *at_string, bt_bdaddr_t *bd_addr);

/** Callback for keypressed (HSP) event.
 */
typedef void (* bthf_key_pressed_cmd_callback)(bt_bdaddr_t *bd_addr);

/** BT-HF callback structure. */
typedef struct {
    /** set to sizeof(BtHfCallbacks) */
    size_t      size;
    bthf_connection_state_callback  connection_state_cb;
    bthf_audio_state_callback       audio_state_cb;
    bthf_vr_cmd_callback            vr_cmd_cb;
    bthf_answer_call_cmd_callback   answer_call_cmd_cb;
    bthf_hangup_call_cmd_callback   hangup_call_cmd_cb;
    bthf_volume_cmd_callback        volume_cmd_cb;
    bthf_dial_call_cmd_callback     dial_call_cmd_cb;
    bthf_dtmf_cmd_callback          dtmf_cmd_cb;
    bthf_nrec_cmd_callback          nrec_cmd_cb;
    bthf_wbs_callback               wbs_cb;
    bthf_chld_cmd_callback          chld_cmd_cb;
    bthf_cnum_cmd_callback          cnum_cmd_cb;
    bthf_cind_cmd_callback          cind_cmd_cb;
    bthf_cops_cmd_callback          cops_cmd_cb;
    bthf_clcc_cmd_callback          clcc_cmd_cb;
    bthf_unknown_at_cmd_callback    unknown_at_cmd_cb;
    bthf_key_pressed_cmd_callback   key_pressed_cmd_cb;
} bthf_callbacks_t;

/** Network Status */
typedef enum
{
    BTHF_NETWORK_STATE_NOT_AVAILABLE = 0,
    BTHF_NETWORK_STATE_AVAILABLE
} bthf_network_state_t;

/** Service type */
typedef enum
{
    BTHF_SERVICE_TYPE_HOME = 0,
    BTHF_SERVICE_TYPE_ROAMING
} bthf_service_type_t;

typedef enum {
    BTHF_CALL_STATE_ACTIVE = 0,
    BTHF_CALL_STATE_HELD,
    BTHF_CALL_STATE_DIALING,
    BTHF_CALL_STATE_ALERTING,
    BTHF_CALL_STATE_INCOMING,
    BTHF_CALL_STATE_WAITING,
    BTHF_CALL_STATE_IDLE
} bthf_call_state_t;

typedef enum {
    BTHF_CALL_DIRECTION_OUTGOING = 0,
    BTHF_CALL_DIRECTION_INCOMING
} bthf_call_direction_t;

typedef enum {
    BTHF_CALL_TYPE_VOICE = 0,
    BTHF_CALL_TYPE_DATA,
    BTHF_CALL_TYPE_FAX
} bthf_call_mode_t;

typedef enum {
    BTHF_CALL_MPTY_TYPE_SINGLE = 0,
    BTHF_CALL_MPTY_TYPE_MULTI
} bthf_call_mpty_type_t;

typedef enum {
    BTHF_CALL_ADDRTYPE_UNKNOWN = 0x81,
    BTHF_CALL_ADDRTYPE_INTERNATIONAL = 0x91
} bthf_call_addrtype_t;
/** Represents the standard BT-HF interface. */
typedef struct {

    /** set to sizeof(BtHfInterface) */
    size_t          size;
    /**
     * Register the BtHf callbacks
     */
    bt_status_t (*init)( bthf_callbacks_t* callbacks, int max_hf_clients);

    /** connect to headset */
    bt_status_t (*connect)( bt_bdaddr_t *bd_addr );

    /** dis-connect from headset */
    bt_status_t (*disconnect)( bt_bdaddr_t *bd_addr );

    /** create an audio connection */
    bt_status_t (*connect_audio)( bt_bdaddr_t *bd_addr );

    /** close the audio connection */
    bt_status_t (*disconnect_audio)( bt_bdaddr_t *bd_addr );

    /** start voice recognition */
    bt_status_t (*start_voice_recognition)( bt_bdaddr_t *bd_addr );

    /** stop voice recognition */
    bt_status_t (*stop_voice_recognition)( bt_bdaddr_t *bd_addr );

    /** volume control */
    bt_status_t (*volume_control) (bthf_volume_type_t type, int volume, bt_bdaddr_t *bd_addr );

    /** Combined device status change notification */
    bt_status_t (*device_status_notification)(bthf_network_state_t ntk_state, bthf_service_type_t svc_type, int signal,
                           int batt_chg);

    /** Response for COPS command */
    bt_status_t (*cops_response)(const char *cops, bt_bdaddr_t *bd_addr );

    /** Response for CIND command */
    bt_status_t (*cind_response)(int svc, int num_active, int num_held, bthf_call_state_t call_setup_state,
                                 int signal, int roam, int batt_chg, bt_bdaddr_t *bd_addr );

    /** Pre-formatted AT response, typically in response to unknown AT cmd */
    bt_status_t (*formatted_at_response)(const char *rsp, bt_bdaddr_t *bd_addr );

    /** ok/error response
     *  ERROR (0)
     *  OK    (1)
     */
    bt_status_t (*at_response) (bthf_at_response_t response_code, int error_code, bt_bdaddr_t *bd_addr );

    /** response for CLCC command 
     *  Can be iteratively called for each call index
     *  Call index of 0 will be treated as NULL termination (Completes response)
     */
    bt_status_t (*clcc_response) (int index, bthf_call_direction_t dir,
                                bthf_call_state_t state, bthf_call_mode_t mode,
                                bthf_call_mpty_type_t mpty, const char *number,
                                bthf_call_addrtype_t type, bt_bdaddr_t *bd_addr );

    /** notify of a call state change
     *  Each update notifies 
     *    1. Number of active/held/ringing calls
     *    2. call_state: This denotes the state change that triggered this msg
     *                   This will take one of the values from BtHfCallState
     *    3. number & type: valid only for incoming & waiting call
    */
    bt_status_t (*phone_state_change) (int num_active, int num_held, bthf_call_state_t call_setup_state,
                                       const char *number, bthf_call_addrtype_t type);

    /** Closes the interface. */
    void  (*cleanup)( void );

    /** configureation for the SCO codec */
    bt_status_t (*configure_wbs)( bt_bdaddr_t *bd_addr ,bthf_wbs_config_t config );
} bthf_interface_t;

__END_DECLS

#endif /* ANDROID_INCLUDE_BT_HF_H */