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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 public interface file for the audio gateway (AG) subsystem
22  *  of BTA, Broadcom's Bluetooth application layer for mobile phones.
23  *
24  ******************************************************************************/
25 #ifndef BTA_AG_API_H
26 #define BTA_AG_API_H
27 
28 #include "bta_api.h"
29 
30 /*****************************************************************************
31 **  Constants and data types
32 *****************************************************************************/
33 #define HFP_VERSION_1_1         0x0101
34 #define HFP_VERSION_1_5         0x0105
35 #define HFP_VERSION_1_6         0x0106
36 #define HFP_VERSION_1_7         0x0107
37 
38 #define HSP_VERSION_1_0         0x0100
39 #define HSP_VERSION_1_2         0x0102
40 
41 /* Note, if you change the default version here, please also change the one in
42  * bta_hs_api.h, they are meant to be the same.
43  */
44 #ifndef BTA_HFP_VERSION
45 #define BTA_HFP_VERSION         HFP_VERSION_1_7
46 #endif
47 
48 #ifndef BTA_HFP_HF_IND_SUPPORTED
49 #define BTA_HFP_HF_IND_SUPPORTED    TRUE
50 #endif
51 
52 /* AG feature masks */
53 #define BTA_AG_FEAT_3WAY    0x00000001   /* Three-way calling */
54 #define BTA_AG_FEAT_ECNR    0x00000002   /* Echo cancellation and/or noise reduction */
55 #define BTA_AG_FEAT_VREC    0x00000004   /* Voice recognition */
56 #define BTA_AG_FEAT_INBAND  0x00000008   /* In-band ring tone */
57 #define BTA_AG_FEAT_VTAG    0x00000010   /* Attach a phone number to a voice tag */
58 #define BTA_AG_FEAT_REJECT  0x00000020   /* Ability to reject incoming call */
59 #define BTA_AG_FEAT_ECS     0x00000040   /* Enhanced Call Status */
60 #define BTA_AG_FEAT_ECC     0x00000080   /* Enhanced Call Control */
61 #define BTA_AG_FEAT_EXTERR  0x00000100   /* Extended error codes */
62 #define BTA_AG_FEAT_CODEC   0x00000200   /* Codec Negotiation */
63 #define BTA_AG_FEAT_HF_IND  0x00000400   /* HF Indicators */
64 #define BTA_AG_FEAT_ESCO    0x00000800   /* eSCO S4 (and T2) setting supported */
65 
66 /* Proprietary features: using 31 ~ 16 bits */
67 #define BTA_AG_FEAT_BTRH    0x00010000   /* CCAP incoming call hold */
68 #define BTA_AG_FEAT_UNAT    0x00020000   /* Pass unknown AT commands to application */
69 #define BTA_AG_FEAT_NOSCO   0x00040000   /* No SCO control performed by BTA AG */
70 #define BTA_AG_FEAT_NO_ESCO 0x00080000   /* Do not allow or use eSCO */
71 #define BTA_AG_FEAT_VOIP    0x00100000   /* VoIP call */
72 
73 typedef UINT32 tBTA_AG_FEAT;
74 
75 /* AG parse mode */
76 #define BTA_AG_PARSE            0 /* Perform AT command parsing in AG */
77 #define BTA_AG_PASS_THROUGH     1 /* Pass data directly to phone�s AT command interpreter */
78 
79 typedef UINT8 tBTA_AG_PARSE_MODE;
80 
81 /* AG open status */
82 #define BTA_AG_SUCCESS          0 /* Connection successfully opened */
83 #define BTA_AG_FAIL_SDP         1 /* Open failed due to SDP */
84 #define BTA_AG_FAIL_RFCOMM      2 /* Open failed due to RFCOMM */
85 #define BTA_AG_FAIL_RESOURCES   3 /* out of resources failure  */
86 
87 /*Status to disallow passing AT Events after BTIF */
88 
89 #define BTA_AG_DISALLOW_AT      5
90 typedef UINT8 tBTA_AG_STATUS;
91 
92 /* handle values used with BTA_AgResult */
93 #define BTA_AG_HANDLE_NONE      0
94 #define BTA_AG_HANDLE_ALL       0xFFFF
95 /* It is safe to use the same value as BTA_AG_HANDLE_ALL
96  * HANDLE_ALL is used for delivering indication
97  * SCO_NO_CHANGE is used for changing sco behavior
98  * They donot interfere with each other
99  */
100 
101 /* Number of supported HF indicators, there is one HF indicator so far i.e.
102                                                    enhanced driver status. */
103 /* Number of supported HF indicators,
104    1 for Enhanced Safety Status
105    2 for Battery Level Status */
106 #ifndef BTA_AG_NUM_LOCAL_HF_IND
107 #define BTA_AG_NUM_LOCAL_HF_IND     2
108 #endif
109 
110 
111 
112 #define BTA_AG_HANDLE_SCO_NO_CHANGE 0xFFFF
113 
114 /* AG result codes used with BTA_AgResult */
115 #define BTA_AG_SPK_RES              0   /* Update speaker volume */
116 #define BTA_AG_MIC_RES              1   /* Update microphone volume */
117 #define BTA_AG_INBAND_RING_RES      2   /* Update inband ring state */
118 #define BTA_AG_CIND_RES             3   /* Send indicator response for AT+CIND */
119 #define BTA_AG_BINP_RES             4   /* Send phone number for voice tag for AT+BINP */
120 #define BTA_AG_IND_RES              5   /* Update an indicator value */
121 #define BTA_AG_BVRA_RES             6   /* Update voice recognition state */
122 #define BTA_AG_CNUM_RES             7   /* Send subscriber number response for AT+CNUM */
123 #define BTA_AG_BTRH_RES             8   /* Send CCAP incoming call hold */
124 #define BTA_AG_CLCC_RES             9   /* Query list of calls */
125 #define BTA_AG_COPS_RES             10  /* Read network operator */
126 #define BTA_AG_IN_CALL_RES          11  /* Indicate incoming phone call */
127 #define BTA_AG_IN_CALL_CONN_RES     12  /* Incoming phone call connected */
128 #define BTA_AG_CALL_WAIT_RES        13  /* Call waiting notification */
129 #define BTA_AG_OUT_CALL_ORIG_RES    14  /* Outgoing phone call origination */
130 #define BTA_AG_OUT_CALL_ALERT_RES   15  /* Outgoing phone call alerting remote party */
131 #define BTA_AG_OUT_CALL_CONN_RES    16  /* Outgoing phone call connected */
132 #define BTA_AG_CALL_CANCEL_RES      17  /* Incoming/outgoing 3-way canceled before connected */
133 #define BTA_AG_END_CALL_RES         18  /* End call */
134 #define BTA_AG_IN_CALL_HELD_RES     19  /* Incoming call held */
135 #define BTA_AG_UNAT_RES             20  /* Response to unknown AT command event */
136 #define BTA_AG_MULTI_CALL_RES       21  /* SLC at three way call */
137 #define BTA_AG_BIND_RES             22  /* Activate/Deactivate HF indicator */
138 
139 typedef UINT8 tBTA_AG_RES;
140 
141 /* HFP peer features */
142 #define BTA_AG_PEER_FEAT_ECNR       0x0001  /* Echo cancellation and/or noise reduction */
143 #define BTA_AG_PEER_FEAT_3WAY       0x0002  /* Call waiting and three-way calling */
144 #define BTA_AG_PEER_FEAT_CLI        0x0004  /* Caller ID presentation capability */
145 #define BTA_AG_PEER_FEAT_VREC       0x0008  /* Voice recognition activation */
146 #define BTA_AG_PEER_FEAT_VOL        0x0010  /* Remote volume control */
147 #define BTA_AG_PEER_FEAT_ECS        0x0020  /* Enhanced Call Status */
148 #define BTA_AG_PEER_FEAT_ECC        0x0040  /* Enhanced Call Control */
149 #define BTA_AG_PEER_FEAT_CODEC      0x0080  /* Codec Negotiation */
150 #define BTA_AG_PEER_FEAT_HF_IND     0x0100   /* HF Indicators */
151 #define BTA_AG_PEER_FEAT_ESCO       0x0200   /* eSCO S4 (and T2) setting supported */
152 
153 /* Proprietary features: using bits after 12 */
154 #define BTA_AG_PEER_FEAT_UNAT       0x1000   /* Pass unknown AT command responses to application */
155 #define BTA_AG_PEER_FEAT_VOIP       0x2000  /* VoIP call */
156 
157 typedef uint16_t tBTA_AG_PEER_FEAT;
158 
159 /* HFP peer supported codec masks */
160 // TODO(google) This should use common definitions
161 // in hci/include/hci_audio.h
162 #define BTA_AG_CODEC_NONE           BTM_SCO_CODEC_NONE
163 #define BTA_AG_CODEC_CVSD           BTM_SCO_CODEC_CVSD      /* CVSD */
164 #define BTA_AG_CODEC_MSBC           BTM_SCO_CODEC_MSBC      /* mSBC */
165 typedef UINT16 tBTA_AG_PEER_CODEC;
166 
167 /* HFP errcode - Set when BTA_AG_OK_ERROR is returned in 'ok_flag' */
168 #define BTA_AG_ERR_PHONE_FAILURE    0       /* Phone Failure */
169 #define BTA_AG_ERR_NO_CONN_PHONE    1       /* No connection to phone */
170 #define BTA_AG_ERR_OP_NOT_ALLOWED   3       /* Operation not allowed */
171 #define BTA_AG_ERR_OP_NOT_SUPPORTED 4       /* Operation not supported */
172 #define BTA_AG_ERR_PHSIM_PIN_REQ    5       /* PH-SIM PIN required */
173 #define BTA_AG_ERR_SIM_NOT_INSERTED 10      /* SIM not inserted */
174 #define BTA_AG_ERR_SIM_PIN_REQ      11      /* SIM PIN required */
175 #define BTA_AG_ERR_SIM_PUK_REQ      12      /* SIM PUK required */
176 #define BTA_AG_ERR_SIM_FAILURE      13      /* SIM failure */
177 #define BTA_AG_ERR_SIM_BUSY         14      /* SIM busy */
178 #define BTA_AG_ERR_INCORRECT_PWD    16      /* Incorrect password */
179 #define BTA_AG_ERR_SIM_PIN2_REQ     17      /* SIM PIN2 required */
180 #define BTA_AG_ERR_SIM_PUK2_REQ     18      /* SIM PUK2 required */
181 #define BTA_AG_ERR_MEMORY_FULL      20      /* Memory full */
182 #define BTA_AG_ERR_INVALID_INDEX    21      /* Invalid index */
183 #define BTA_AG_ERR_MEMORY_FAILURE   23      /* Memory failure */
184 #define BTA_AG_ERR_TEXT_TOO_LONG    24      /* Text string too long */
185 #define BTA_AG_ERR_INV_CHAR_IN_TSTR 25      /* Invalid characters in text string */
186 #define BTA_AG_ERR_DSTR_TOO_LONG    26      /* Dial string too long */
187 #define BTA_AG_ERR_INV_CHAR_IN_DSTR 27      /* Invalid characters in dial string */
188 #define BTA_AG_ERR_NO_NETWORK_SERV  30      /* No network service */
189 #define BTA_AG_ERR_NETWORK_TIME_OUT 31      /* Network timeout */
190 #define BTA_AG_ERR_NO_NET_EMG_ONLY  32      /* Network not allowed - emergency service only */
191 #define BTA_AG_ERR_VOIP_CS_CALLS    33      /* AG cannot create simultaneous VoIP and CS calls */
192 #define BTA_AG_ERR_NOT_FOR_VOIP     34      /* Not supported on this call type(VoIP) */
193 #define BTA_AG_ERR_SIP_RESP_CODE    35      /* SIP 3 digit response code */
194 
195 #if 0   /* Not Used in Bluetooth HFP 1.5 Specification */
196 #define BTA_AG_ERR_PHADAP_LNK_RES   2       /* Phone-adapter link reserved */
197 #define BTA_AG_ERR_PHFSIM_PIN_REQ   6       /* PH-FSIM PIN required */
198 #define BTA_AG_ERR_PHFSIM_PUK_REQ   7       /* PH-FSIM PUK required */
199 #define BTA_AG_ERR_SIM_WRONG        15      /* SIM wrong */
200 #define BTA_AG_ERR_NOT_FOUND        22      /* Not found */
201 #define BTA_AG_ERR_NETWORK_TIMEOUT  31      /* Network timeout */
202 #define BTA_AG_ERR_NET_PIN_REQ      40      /* Network personalization PIN required */
203 #define BTA_AG_ERR_NET_PUK_REQ      41      /* Network personalization PUK required */
204 #define BTA_AG_ERR_SUBSET_PIN_REQ   42      /* Network subset personalization PIN required */
205 #define BTA_AG_ERR_SUBSET_PUK_REQ   43      /* Network subset personalization PUK required */
206 #define BTA_AG_ERR_SERVPRO_PIN_REQ  44      /* Service provider personalization PIN required */
207 #define BTA_AG_ERR_SERVPRO_PUK_REQ  45      /* Service provider personalization PUK required */
208 #define BTA_AG_ERR_CORP_PIN_REQ     46      /* Corporate personalization PIN required */
209 #define BTA_AG_ERR_CORP_PUK_REQ     47      /* Corporate personalization PUK required */
210 #define BTA_AG_ERR_UNKNOWN          100    /* Unknown error */
211 /* GPRS-related errors */
212 #define BTA_AG_ERR_ILL_MS           103    /* Illegal MS (#3) */
213 #define BTA_AG_ERR_ILL_ME           106    /* Illegal ME (#6) */
214 #define BTA_AG_ERR_GPRS_NOT_ALLOWED 107    /* GPRS services not allowed (#7) */
215 #define BTA_AG_ERR_PLMN_NOT_ALLOWED 111    /* PLMN services not allowed (#11) */
216 #define BTA_AG_ERR_LOC_NOT_ALLOWED  112    /* Location area not allowed (#12) */
217 #define BTA_AG_ERR_ROAM_NOT_ALLOWED 113    /* Roaming not allowed in this location area (#13) */
218 /* Errors related to a failure to Activate a Context */
219 #define BTA_AG_ERR_OPT_NOT_SUPP     132    /* Service option not supported (#32) */
220 #define BTA_AG_ERR_OPT_NOT_SUBSCR   133    /* Requested service option not subscribed (#33) */
221 #define BTA_AG_ERR_OPT_OUT_OF_ORDER 134    /* Service option temporarily out of order (#34) */
222 #define BTA_AG_ERR_PDP_AUTH_FAILURE 149    /* PDP authentication failure */
223 /* Other GPRS errors */
224 #define BTA_AG_ERR_INV_MOBILE_CLASS 150    /* Invalid mobile class */
225 #define BTA_AG_ERR_UNSPEC_GPRS_ERR  148    /* Unspecified GPRS error */
226 #endif  /* Unused error codes */
227 
228 
229 /* HFP result data 'ok_flag' */
230 #define BTA_AG_OK_CONTINUE          0       /* Send out response (more responses coming) */
231 #define BTA_AG_OK_DONE              1       /* Send out response followed by OK (finished) */
232 #define BTA_AG_OK_ERROR             2       /* Error response */
233 
234 /* BTRH values */
235 #define BTA_AG_BTRH_SET_HOLD        0       /* Put incoming call on hold */
236 #define BTA_AG_BTRH_SET_ACC         1       /* Accept incoming call on hold */
237 #define BTA_AG_BTRH_SET_REJ         2       /* Reject incoming call on hold */
238 #define BTA_AG_BTRH_READ            3       /* Read the current value */
239 #define BTA_AG_BTRH_NO_RESP         4       /* Not in RH States (reply to read) */
240 
241 /* ASCII character string of arguments to the AT command or result */
242 #ifndef BTA_AG_AT_MAX_LEN
243 #define BTA_AG_AT_MAX_LEN           256
244 #endif
245 
246 /* data associated with BTA_AG_IND_RES */
247 typedef struct
248 {
249     uint16_t          id;
250     uint16_t          value;
251     bool              on_demand;
252 } tBTA_AG_IND;
253 
254 /* data type for BTA_AgResult() */
255 typedef struct
256 {
257     char            str[BTA_AG_AT_MAX_LEN+1];
258     tBTA_AG_IND     ind;
259     UINT16          num;
260     UINT16          audio_handle;
261     UINT16          errcode;        /* Valid only if 'ok_flag' is set to BTA_AG_OK_ERROR */
262     UINT8           ok_flag;        /* Indicates if response is finished, and if error occurred */
263     BOOLEAN         state;
264 } tBTA_AG_RES_DATA;
265 
266 /* AG callback events */
267 #define BTA_AG_ENABLE_EVT       0  /* AG enabled */
268 #define BTA_AG_REGISTER_EVT     1  /* AG registered */
269 #define BTA_AG_OPEN_EVT         2  /* AG connection open */
270 #define BTA_AG_CLOSE_EVT        3  /* AG connection closed */
271 #define BTA_AG_CONN_EVT         4  /* Service level connection opened */
272 #define BTA_AG_AUDIO_OPEN_EVT   5  /* Audio connection open */
273 #define BTA_AG_AUDIO_CLOSE_EVT  6  /* Audio connection closed */
274 #define BTA_AG_SPK_EVT          7  /* Speaker volume changed */
275 #define BTA_AG_MIC_EVT          8  /* Microphone volume changed */
276 #define BTA_AG_AT_CKPD_EVT      9  /* CKPD from the HS */
277 #define BTA_AG_DISABLE_EVT      30 /* AG disabled       */
278 #if (BTM_WBS_INCLUDED == TRUE )
279 #define BTA_AG_WBS_EVT          31 /* SCO codec info */
280 #endif
281 /* Values below are for HFP only */
282 #define BTA_AG_AT_A_EVT         10 /* Answer a call */
283 #define BTA_AG_AT_D_EVT         11 /* Place a call using number or memory dial */
284 #define BTA_AG_AT_CHLD_EVT      12 /* Call hold */
285 #define BTA_AG_AT_CHUP_EVT      13 /* Hang up a call */
286 #define BTA_AG_AT_CIND_EVT      14 /* Read indicator settings */
287 #define BTA_AG_AT_VTS_EVT       15 /* Transmit DTMF tone */
288 #define BTA_AG_AT_BINP_EVT      16 /* Retrieve number from voice tag */
289 #define BTA_AG_AT_BLDN_EVT      17 /* Place call to last dialed number */
290 #define BTA_AG_AT_BVRA_EVT      18 /* Enable/disable voice recognition */
291 #define BTA_AG_AT_NREC_EVT      19 /* Disable echo canceling */
292 #define BTA_AG_AT_CNUM_EVT      20 /* Retrieve subscriber number */
293 #define BTA_AG_AT_BTRH_EVT      21 /* CCAP-style incoming call hold */
294 #define BTA_AG_AT_CLCC_EVT      22 /* Query list of current calls */
295 #define BTA_AG_AT_COPS_EVT      23 /* Query list of current calls */
296 #define BTA_AG_AT_UNAT_EVT      24 /* Unknown AT command */
297 #define BTA_AG_AT_CBC_EVT       25 /* Battery Level report from HF */
298 #define BTA_AG_AT_BAC_EVT       26 /* avablable codec */
299 #define BTA_AG_AT_BCS_EVT       27 /* Codec select */
300 #define BTA_AG_AT_BIND_EVT      28 /* HF indicator */
301 #define BTA_AG_AT_BIEV_EVT      29 /* HF indicator updates from peer */
302 
303 typedef UINT8 tBTA_AG_EVT;
304 
305 /* data associated with most non-AT events */
306 typedef struct
307 {
308     UINT16              handle;
309     UINT8               app_id;
310     tBTA_AG_STATUS      status;
311 } tBTA_AG_HDR;
312 
313 /* data associated with BTA_AG_REGISTER_EVT */
314 typedef struct
315 {
316     tBTA_AG_HDR         hdr;
317     tBTA_AG_STATUS      status;
318 } tBTA_AG_REGISTER;
319 
320 /* data associated with BTA_AG_OPEN_EVT */
321 typedef struct
322 {
323     tBTA_AG_HDR         hdr;
324     BD_ADDR             bd_addr;
325     tBTA_SERVICE_ID     service_id;
326     tBTA_AG_STATUS      status;
327 } tBTA_AG_OPEN;
328 
329 /* data associated with BTA_AG_CLOSE_EVT */
330 typedef struct
331 {
332     tBTA_AG_HDR         hdr;
333     BD_ADDR             bd_addr;
334 } tBTA_AG_CLOSE;
335 
336 /* data associated with BTA_AG_CONN_EVT */
337 typedef struct
338 {
339     tBTA_AG_HDR         hdr;
340     tBTA_AG_PEER_FEAT   peer_feat;
341     BD_ADDR             bd_addr;
342     tBTA_AG_PEER_CODEC  peer_codec;
343 } tBTA_AG_CONN;
344 
345 /* data associated with AT command event */
346 typedef struct
347 {
348     tBTA_AG_HDR         hdr;
349     BD_ADDR             bd_addr;
350     char                str[BTA_AG_AT_MAX_LEN+1];
351     UINT16              num;
352     UINT8               idx;    /* call number used by CLCC and CHLD */
353     UINT16              lidx;    /* long index, ex, HF indicator */
354 } tBTA_AG_VAL;
355 
356 /* union of data associated with AG callback */
357 typedef union
358 {
359     tBTA_AG_HDR         hdr;
360     tBTA_AG_REGISTER    reg;
361     tBTA_AG_OPEN        open;
362     tBTA_AG_CLOSE       close;
363     tBTA_AG_CONN        conn;
364     tBTA_AG_VAL         val;
365 } tBTA_AG;
366 
367 /* AG callback */
368 typedef void (tBTA_AG_CBACK)(tBTA_AG_EVT event, tBTA_AG *p_data);
369 
370 /* indicator constants HFP 1.1 and later */
371 #define BTA_AG_IND_CALL             1   /* position of call indicator */
372 #define BTA_AG_IND_CALLSETUP        2   /* position of callsetup indicator */
373 #define BTA_AG_IND_SERVICE          3   /* position of service indicator */
374 
375 /* indicator constants HFP 1.5 and later */
376 #define BTA_AG_IND_SIGNAL           4   /* position of signal strength indicator */
377 #define BTA_AG_IND_ROAM             5   /* position of roaming indicator */
378 #define BTA_AG_IND_BATTCHG          6   /* position of battery charge indicator */
379 #define BTA_AG_IND_CALLHELD         7   /* position of callheld indicator */
380 #define BTA_AG_IND_BEARER           8   /* position of bearer indicator */
381 
382 /* call indicator values */
383 #define BTA_AG_CALL_INACTIVE        0   /* Phone call inactive */
384 #define BTA_AG_CALL_ACTIVE          1   /* Phone call active */
385 
386 /* callsetup indicator values */
387 #define BTA_AG_CALLSETUP_NONE       0   /* Not currently in call set up */
388 #define BTA_AG_CALLSETUP_INCOMING   1   /* Incoming call process ongoing */
389 #define BTA_AG_CALLSETUP_OUTGOING   2   /* Outgoing call set up is ongoing */
390 #define BTA_AG_CALLSETUP_ALERTING   3   /* Remote party being alerted in an outgoing call */
391 
392 /* service indicator values */
393 #define BTA_AG_SERVICE_NONE         0   /* Neither CS nor VoIP service is available     */
394 #define BTA_AG_SERVICE_CS           1   /* Only CS service is available                 */
395 #define BTA_AG_SERVICE_VOIP         2   /* Only VoIP service is available               */
396 #define BTA_AG_SERVICE_CS_VOIP      3   /* Both CS and VoIP services available          */
397 
398 /* callheld indicator values */
399 #define BTA_AG_CALLHELD_INACTIVE    0   /* No held calls */
400 #define BTA_AG_CALLHELD_ACTIVE      1   /* Call held and call active */
401 #define BTA_AG_CALLHELD_NOACTIVE    2   /* Call held and no call active */
402 
403 /* signal strength indicator values */
404 #define BTA_AG_ROAMING_INACTIVE     0   /* Phone call inactive */
405 #define BTA_AG_ROAMING_ACTIVE       1   /* Phone call active */
406 
407 /* bearer indicator values */
408 #define BTA_AG_BEARER_WLAN          0   /* WLAN         */
409 #define BTA_AG_BEARER_BLUETOOTH     1   /* Bluetooth    */
410 #define BTA_AG_BEARER_WIRED         2   /* Wired        */
411 #define BTA_AG_BEARER_2G3G          3   /* 2G 3G        */
412 #define BTA_AG_BEARER_WIMAX         4   /* WIMAX        */
413 #define BTA_AG_BEARER_RES1          5   /* Reserved     */
414 #define BTA_AG_BEARER_RES2          6   /* Reserved     */
415 #define BTA_AG_BEARER_RES3          7   /* Reserved     */
416 
417 /* type for HF indicator */
418 typedef struct
419 {
420     UINT16          ind_id;
421     BOOLEAN         is_supported;
422     BOOLEAN         is_enable;
423     UINT32          ind_min_val;
424     UINT32          ind_max_val;
425 } tBTA_AG_HF_IND;
426 
427 /* AG configuration structure */
428 typedef struct
429 {
430     char         *cind_info;
431     char         *bind_info;
432     uint8_t        num_local_hf_ind;
433     int32_t        conn_tout;
434     uint16_t       sco_pkt_types;
435     char         *chld_val_ecc;
436     char         *chld_val;
437 } tBTA_AG_CFG;
438 
439 #ifdef __cplusplus
440 extern "C"
441 {
442 #endif
443 
444 /*****************************************************************************
445 **  External Function Declarations
446 *****************************************************************************/
447 
448 /*******************************************************************************
449 **
450 ** Function         BTA_AgEnable
451 **
452 ** Description      Enable the audio gateway service. When the enable
453 **                  operation is complete the callback function will be
454 **                  called with a BTA_AG_ENABLE_EVT. This function must
455 **                  be called before other function in the AG API are
456 **                  called.
457 **
458 ** Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
459 **
460 *******************************************************************************/
461 tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback);
462 
463 /*******************************************************************************
464 **
465 ** Function         BTA_AgDisable
466 **
467 ** Description      Disable the audio gateway service
468 **
469 **
470 ** Returns          void
471 **
472 *******************************************************************************/
473 void BTA_AgDisable(void);
474 
475 /*******************************************************************************
476 **
477 ** Function         BTA_AgRegister
478 **
479 ** Description      Register an Audio Gateway service.
480 **
481 **
482 ** Returns          void
483 **
484 *******************************************************************************/
485 void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,
486                     tBTA_AG_FEAT features, char *p_service_names[], UINT8 app_id);
487 
488 /*******************************************************************************
489 **
490 ** Function         BTA_AgDeregister
491 **
492 ** Description      Deregister an audio gateway service.
493 **
494 **
495 ** Returns          void
496 **
497 *******************************************************************************/
498 void BTA_AgDeregister(UINT16 handle);
499 
500 /*******************************************************************************
501 **
502 ** Function         BTA_AgOpen
503 **
504 ** Description      Opens a connection to a headset or hands-free device.
505 **                  When connection is open callback function is called
506 **                  with a BTA_AG_OPEN_EVT. Only the data connection is
507 **                  opened. The audio connection is not opened.
508 **
509 **
510 ** Returns          void
511 **
512 *******************************************************************************/
513 void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services);
514 
515 /*******************************************************************************
516 **
517 ** Function         BTA_AgClose
518 **
519 ** Description      Close the current connection to a headset or a handsfree
520 **                  Any current audio connection will also be closed
521 **
522 **
523 ** Returns          void
524 **
525 *******************************************************************************/
526 void BTA_AgClose(UINT16 handle);
527 
528 /*******************************************************************************
529 **
530 ** Function         BTA_AgAudioOpen
531 **
532 ** Description      Opens an audio connection to the currently connected
533 **                  headset or hnadsfree
534 **
535 **
536 ** Returns          void
537 **
538 *******************************************************************************/
539 void BTA_AgAudioOpen(UINT16 handle);
540 
541 /*******************************************************************************
542 **
543 ** Function         BTA_AgAudioClose
544 **
545 ** Description      Close the currently active audio connection to a headset
546 **                  or hnadsfree. The data connection remains open
547 **
548 **
549 ** Returns          void
550 **
551 *******************************************************************************/
552 void BTA_AgAudioClose(UINT16 handle);
553 
554 /*******************************************************************************
555 **
556 ** Function         BTA_AgResult
557 **
558 ** Description      Send an AT result code to a headset or hands-free device.
559 **                  This function is only used when the AG parse mode is set
560 **                  to BTA_AG_PARSE.
561 **
562 **
563 ** Returns          void
564 **
565 *******************************************************************************/
566 void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data);
567 
568 /*******************************************************************************
569 **
570 ** Function         BTA_AgSetCodec
571 **
572 ** Description      Specify the codec type to be used for the subsequent
573 **                  audio connection.
574 **
575 **
576 **
577 ** Returns          void
578 **
579 *******************************************************************************/
580 void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec);
581 
582 #ifdef __cplusplus
583 }
584 #endif
585 
586 #endif /* BTA_AG_API_H */
587