1 /******************************************************************************
3 * Copyright (C) 2003-2012 Broadcom Corporation
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 ******************************************************************************/
19 /******************************************************************************
21 * This is the public interface file for the audio gateway (AG) subsystem
22 * of BTA, Broadcom's Bluetooth application layer for mobile phones.
24 ******************************************************************************/
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
38 #define HSP_VERSION_1_0 0x0100
39 #define HSP_VERSION_1_2 0x0102
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.
44 #ifndef BTA_HFP_VERSION
45 #define BTA_HFP_VERSION HFP_VERSION_1_7
48 /* AG feature masks */
49 #define BTA_AG_FEAT_3WAY 0x00000001 /* Three-way calling */
50 #define BTA_AG_FEAT_ECNR 0x00000002 /* Echo cancellation and/or noise reduction */
51 #define BTA_AG_FEAT_VREC 0x00000004 /* Voice recognition */
52 #define BTA_AG_FEAT_INBAND 0x00000008 /* In-band ring tone */
53 #define BTA_AG_FEAT_VTAG 0x00000010 /* Attach a phone number to a voice tag */
54 #define BTA_AG_FEAT_REJECT 0x00000020 /* Ability to reject incoming call */
55 #define BTA_AG_FEAT_ECS 0x00000040 /* Enhanced Call Status */
56 #define BTA_AG_FEAT_ECC 0x00000080 /* Enhanced Call Control */
57 #define BTA_AG_FEAT_EXTERR 0x00000100 /* Extended error codes */
58 #define BTA_AG_FEAT_CODEC 0x00000200 /* Codec Negotiation */
60 #define HFP_1_6_FEAT_MASK 0x000003FF /* Valid feature bit mask for HFP 1.6 (and below) */
63 #define BTA_AG_FEAT_HF_IND 0x00000400 /* HF Indicators */
64 #define BTA_AG_FEAT_ESCO 0x00000800 /* eSCO S4 (and T2) setting supported */
67 /* Proprietary features: using 31 ~ 16 bits */
68 #define BTA_AG_FEAT_BTRH 0x00010000 /* CCAP incoming call hold */
69 #define BTA_AG_FEAT_UNAT 0x00020000 /* Pass unknown AT commands to application */
70 #define BTA_AG_FEAT_NOSCO 0x00040000 /* No SCO control performed by BTA AG */
71 #define BTA_AG_FEAT_NO_ESCO 0x00080000 /* Do not allow or use eSCO */
72 #define BTA_AG_FEAT_VOIP 0x00100000 /* VoIP call */
74 typedef UINT32 tBTA_AG_FEAT;
77 #define BTA_AG_PARSE 0 /* Perform AT command parsing in AG */
78 #define BTA_AG_PASS_THROUGH 1 /* Pass data directly to phone
\92s AT command interpreter */
80 typedef UINT8 tBTA_AG_PARSE_MODE;
83 #define BTA_AG_SUCCESS 0 /* Connection successfully opened */
84 #define BTA_AG_FAIL_SDP 1 /* Open failed due to SDP */
85 #define BTA_AG_FAIL_RFCOMM 2 /* Open failed due to RFCOMM */
86 #define BTA_AG_FAIL_RESOURCES 3 /* out of resources failure */
88 /*Status to disallow passing AT Events after BTIF */
90 #define BTA_AG_DISALLOW_AT 5
91 typedef UINT8 tBTA_AG_STATUS;
93 /* handle values used with BTA_AgResult */
94 #define BTA_AG_HANDLE_NONE 0
95 #define BTA_AG_HANDLE_ALL 0xFFFF
96 /* It is safe to use the same value as BTA_AG_HANDLE_ALL
97 * HANDLE_ALL is used for delivering indication
98 * SCO_NO_CHANGE is used for changing sco behavior
99 * They donot interfere with each other
102 /* Number of supported HF indicators, there is one HF indicator so far i.e.
103 enhanced driver status. */
104 /* Number of supported HF indicators,
105 1 for Enhanced Safety Status
106 2 for Battery Level Status */
107 #ifndef BTA_AG_NUM_LOCAL_HF_IND
108 #define BTA_AG_NUM_LOCAL_HF_IND 2
113 #define BTA_AG_HANDLE_SCO_NO_CHANGE 0xFFFF
115 /* AG result codes used with BTA_AgResult */
116 #define BTA_AG_SPK_RES 0 /* Update speaker volume */
117 #define BTA_AG_MIC_RES 1 /* Update microphone volume */
118 #define BTA_AG_INBAND_RING_RES 2 /* Update inband ring state */
119 #define BTA_AG_CIND_RES 3 /* Send indicator response for AT+CIND */
120 #define BTA_AG_BINP_RES 4 /* Send phone number for voice tag for AT+BINP */
121 #define BTA_AG_IND_RES 5 /* Update an indicator value */
122 #define BTA_AG_BVRA_RES 6 /* Update voice recognition state */
123 #define BTA_AG_CNUM_RES 7 /* Send subscriber number response for AT+CNUM */
124 #define BTA_AG_BTRH_RES 8 /* Send CCAP incoming call hold */
125 #define BTA_AG_CLCC_RES 9 /* Query list of calls */
126 #define BTA_AG_COPS_RES 10 /* Read network operator */
127 #define BTA_AG_IN_CALL_RES 11 /* Indicate incoming phone call */
128 #define BTA_AG_IN_CALL_CONN_RES 12 /* Incoming phone call connected */
129 #define BTA_AG_CALL_WAIT_RES 13 /* Call waiting notification */
130 #define BTA_AG_OUT_CALL_ORIG_RES 14 /* Outgoing phone call origination */
131 #define BTA_AG_OUT_CALL_ALERT_RES 15 /* Outgoing phone call alerting remote party */
132 #define BTA_AG_OUT_CALL_CONN_RES 16 /* Outgoing phone call connected */
133 #define BTA_AG_CALL_CANCEL_RES 17 /* Incoming/outgoing 3-way canceled before connected */
134 #define BTA_AG_END_CALL_RES 18 /* End call */
135 #define BTA_AG_IN_CALL_HELD_RES 19 /* Incoming call held */
136 #define BTA_AG_UNAT_RES 20 /* Response to unknown AT command event */
137 #define BTA_AG_MULTI_CALL_RES 21 /* SLC at three way call */
138 #define BTA_AG_BIND_RES 22 /* Activate/Deactivate HF indicator */
140 typedef UINT8 tBTA_AG_RES;
142 /* HFP peer features */
143 #define BTA_AG_PEER_FEAT_ECNR 0x0001 /* Echo cancellation and/or noise reduction */
144 #define BTA_AG_PEER_FEAT_3WAY 0x0002 /* Call waiting and three-way calling */
145 #define BTA_AG_PEER_FEAT_CLI 0x0004 /* Caller ID presentation capability */
146 #define BTA_AG_PEER_FEAT_VREC 0x0008 /* Voice recognition activation */
147 #define BTA_AG_PEER_FEAT_VOL 0x0010 /* Remote volume control */
148 #define BTA_AG_PEER_FEAT_ECS 0x0020 /* Enhanced Call Status */
149 #define BTA_AG_PEER_FEAT_ECC 0x0040 /* Enhanced Call Control */
150 #define BTA_AG_PEER_FEAT_CODEC 0x0080 /* Codec Negotiation */
151 #define BTA_AG_PEER_FEAT_HF_IND 0x0100 /* HF Indicators */
152 #define BTA_AG_PEER_FEAT_ESCO 0x0200 /* eSCO S4 (and T2) setting supported */
154 /* Proprietary features: using bits after 12 */
155 #define BTA_AG_PEER_FEAT_UNAT 0x1000 /* Pass unknown AT command responses to application */
156 #define BTA_AG_PEER_FEAT_VOIP 0x2000 /* VoIP call */
158 typedef uint16_t tBTA_AG_PEER_FEAT;
160 /* HFP peer supported codec masks */
161 // TODO(google) This should use common definitions
162 // in hci/include/hci_audio.h
163 #define BTA_AG_CODEC_NONE BTM_SCO_CODEC_NONE
164 #define BTA_AG_CODEC_CVSD BTM_SCO_CODEC_CVSD /* CVSD */
165 #define BTA_AG_CODEC_MSBC BTM_SCO_CODEC_MSBC /* mSBC */
166 typedef UINT16 tBTA_AG_PEER_CODEC;
168 /* HFP errcode - Set when BTA_AG_OK_ERROR is returned in 'ok_flag' */
169 #define BTA_AG_ERR_PHONE_FAILURE 0 /* Phone Failure */
170 #define BTA_AG_ERR_NO_CONN_PHONE 1 /* No connection to phone */
171 #define BTA_AG_ERR_OP_NOT_ALLOWED 3 /* Operation not allowed */
172 #define BTA_AG_ERR_OP_NOT_SUPPORTED 4 /* Operation not supported */
173 #define BTA_AG_ERR_PHSIM_PIN_REQ 5 /* PH-SIM PIN required */
174 #define BTA_AG_ERR_SIM_NOT_INSERTED 10 /* SIM not inserted */
175 #define BTA_AG_ERR_SIM_PIN_REQ 11 /* SIM PIN required */
176 #define BTA_AG_ERR_SIM_PUK_REQ 12 /* SIM PUK required */
177 #define BTA_AG_ERR_SIM_FAILURE 13 /* SIM failure */
178 #define BTA_AG_ERR_SIM_BUSY 14 /* SIM busy */
179 #define BTA_AG_ERR_INCORRECT_PWD 16 /* Incorrect password */
180 #define BTA_AG_ERR_SIM_PIN2_REQ 17 /* SIM PIN2 required */
181 #define BTA_AG_ERR_SIM_PUK2_REQ 18 /* SIM PUK2 required */
182 #define BTA_AG_ERR_MEMORY_FULL 20 /* Memory full */
183 #define BTA_AG_ERR_INVALID_INDEX 21 /* Invalid index */
184 #define BTA_AG_ERR_MEMORY_FAILURE 23 /* Memory failure */
185 #define BTA_AG_ERR_TEXT_TOO_LONG 24 /* Text string too long */
186 #define BTA_AG_ERR_INV_CHAR_IN_TSTR 25 /* Invalid characters in text string */
187 #define BTA_AG_ERR_DSTR_TOO_LONG 26 /* Dial string too long */
188 #define BTA_AG_ERR_INV_CHAR_IN_DSTR 27 /* Invalid characters in dial string */
189 #define BTA_AG_ERR_NO_NETWORK_SERV 30 /* No network service */
190 #define BTA_AG_ERR_NETWORK_TIME_OUT 31 /* Network timeout */
191 #define BTA_AG_ERR_NO_NET_EMG_ONLY 32 /* Network not allowed - emergency service only */
192 #define BTA_AG_ERR_VOIP_CS_CALLS 33 /* AG cannot create simultaneous VoIP and CS calls */
193 #define BTA_AG_ERR_NOT_FOR_VOIP 34 /* Not supported on this call type(VoIP) */
194 #define BTA_AG_ERR_SIP_RESP_CODE 35 /* SIP 3 digit response code */
196 #if 0 /* Not Used in Bluetooth HFP 1.5 Specification */
197 #define BTA_AG_ERR_PHADAP_LNK_RES 2 /* Phone-adapter link reserved */
198 #define BTA_AG_ERR_PHFSIM_PIN_REQ 6 /* PH-FSIM PIN required */
199 #define BTA_AG_ERR_PHFSIM_PUK_REQ 7 /* PH-FSIM PUK required */
200 #define BTA_AG_ERR_SIM_WRONG 15 /* SIM wrong */
201 #define BTA_AG_ERR_NOT_FOUND 22 /* Not found */
202 #define BTA_AG_ERR_NETWORK_TIMEOUT 31 /* Network timeout */
203 #define BTA_AG_ERR_NET_PIN_REQ 40 /* Network personalization PIN required */
204 #define BTA_AG_ERR_NET_PUK_REQ 41 /* Network personalization PUK required */
205 #define BTA_AG_ERR_SUBSET_PIN_REQ 42 /* Network subset personalization PIN required */
206 #define BTA_AG_ERR_SUBSET_PUK_REQ 43 /* Network subset personalization PUK required */
207 #define BTA_AG_ERR_SERVPRO_PIN_REQ 44 /* Service provider personalization PIN required */
208 #define BTA_AG_ERR_SERVPRO_PUK_REQ 45 /* Service provider personalization PUK required */
209 #define BTA_AG_ERR_CORP_PIN_REQ 46 /* Corporate personalization PIN required */
210 #define BTA_AG_ERR_CORP_PUK_REQ 47 /* Corporate personalization PUK required */
211 #define BTA_AG_ERR_UNKNOWN 100 /* Unknown error */
212 /* GPRS-related errors */
213 #define BTA_AG_ERR_ILL_MS 103 /* Illegal MS (#3) */
214 #define BTA_AG_ERR_ILL_ME 106 /* Illegal ME (#6) */
215 #define BTA_AG_ERR_GPRS_NOT_ALLOWED 107 /* GPRS services not allowed (#7) */
216 #define BTA_AG_ERR_PLMN_NOT_ALLOWED 111 /* PLMN services not allowed (#11) */
217 #define BTA_AG_ERR_LOC_NOT_ALLOWED 112 /* Location area not allowed (#12) */
218 #define BTA_AG_ERR_ROAM_NOT_ALLOWED 113 /* Roaming not allowed in this location area (#13) */
219 /* Errors related to a failure to Activate a Context */
220 #define BTA_AG_ERR_OPT_NOT_SUPP 132 /* Service option not supported (#32) */
221 #define BTA_AG_ERR_OPT_NOT_SUBSCR 133 /* Requested service option not subscribed (#33) */
222 #define BTA_AG_ERR_OPT_OUT_OF_ORDER 134 /* Service option temporarily out of order (#34) */
223 #define BTA_AG_ERR_PDP_AUTH_FAILURE 149 /* PDP authentication failure */
224 /* Other GPRS errors */
225 #define BTA_AG_ERR_INV_MOBILE_CLASS 150 /* Invalid mobile class */
226 #define BTA_AG_ERR_UNSPEC_GPRS_ERR 148 /* Unspecified GPRS error */
227 #endif /* Unused error codes */
230 /* HFP result data 'ok_flag' */
231 #define BTA_AG_OK_CONTINUE 0 /* Send out response (more responses coming) */
232 #define BTA_AG_OK_DONE 1 /* Send out response followed by OK (finished) */
233 #define BTA_AG_OK_ERROR 2 /* Error response */
236 #define BTA_AG_BTRH_SET_HOLD 0 /* Put incoming call on hold */
237 #define BTA_AG_BTRH_SET_ACC 1 /* Accept incoming call on hold */
238 #define BTA_AG_BTRH_SET_REJ 2 /* Reject incoming call on hold */
239 #define BTA_AG_BTRH_READ 3 /* Read the current value */
240 #define BTA_AG_BTRH_NO_RESP 4 /* Not in RH States (reply to read) */
242 /* ASCII character string of arguments to the AT command or result */
243 #ifndef BTA_AG_AT_MAX_LEN
244 #define BTA_AG_AT_MAX_LEN 256
247 /* data associated with BTA_AG_IND_RES */
255 /* data type for BTA_AgResult() */
258 char str[BTA_AG_AT_MAX_LEN+1];
262 UINT16 errcode; /* Valid only if 'ok_flag' is set to BTA_AG_OK_ERROR */
263 UINT8 ok_flag; /* Indicates if response is finished, and if error occurred */
267 /* AG callback events */
268 #define BTA_AG_ENABLE_EVT 0 /* AG enabled */
269 #define BTA_AG_REGISTER_EVT 1 /* AG registered */
270 #define BTA_AG_OPEN_EVT 2 /* AG connection open */
271 #define BTA_AG_CLOSE_EVT 3 /* AG connection closed */
272 #define BTA_AG_CONN_EVT 4 /* Service level connection opened */
273 #define BTA_AG_AUDIO_OPEN_EVT 5 /* Audio connection open */
274 #define BTA_AG_AUDIO_CLOSE_EVT 6 /* Audio connection closed */
275 #define BTA_AG_SPK_EVT 7 /* Speaker volume changed */
276 #define BTA_AG_MIC_EVT 8 /* Microphone volume changed */
277 #define BTA_AG_AT_CKPD_EVT 9 /* CKPD from the HS */
278 #define BTA_AG_DISABLE_EVT 30 /* AG disabled */
279 #if (BTM_WBS_INCLUDED == TRUE )
280 #define BTA_AG_WBS_EVT 31 /* SCO codec info */
282 /* Values below are for HFP only */
283 #define BTA_AG_AT_A_EVT 10 /* Answer a call */
284 #define BTA_AG_AT_D_EVT 11 /* Place a call using number or memory dial */
285 #define BTA_AG_AT_CHLD_EVT 12 /* Call hold */
286 #define BTA_AG_AT_CHUP_EVT 13 /* Hang up a call */
287 #define BTA_AG_AT_CIND_EVT 14 /* Read indicator settings */
288 #define BTA_AG_AT_VTS_EVT 15 /* Transmit DTMF tone */
289 #define BTA_AG_AT_BINP_EVT 16 /* Retrieve number from voice tag */
290 #define BTA_AG_AT_BLDN_EVT 17 /* Place call to last dialed number */
291 #define BTA_AG_AT_BVRA_EVT 18 /* Enable/disable voice recognition */
292 #define BTA_AG_AT_NREC_EVT 19 /* Disable echo canceling */
293 #define BTA_AG_AT_CNUM_EVT 20 /* Retrieve subscriber number */
294 #define BTA_AG_AT_BTRH_EVT 21 /* CCAP-style incoming call hold */
295 #define BTA_AG_AT_CLCC_EVT 22 /* Query list of current calls */
296 #define BTA_AG_AT_COPS_EVT 23 /* Query list of current calls */
297 #define BTA_AG_AT_UNAT_EVT 24 /* Unknown AT command */
298 #define BTA_AG_AT_CBC_EVT 25 /* Battery Level report from HF */
299 #define BTA_AG_AT_BAC_EVT 26 /* avablable codec */
300 #define BTA_AG_AT_BCS_EVT 27 /* Codec select */
301 #define BTA_AG_AT_BIND_EVT 28 /* HF indicator */
302 #define BTA_AG_AT_BIEV_EVT 29 /* HF indicator updates from peer */
304 typedef UINT8 tBTA_AG_EVT;
306 /* data associated with most non-AT events */
311 tBTA_AG_STATUS status;
314 /* data associated with BTA_AG_REGISTER_EVT */
318 tBTA_AG_STATUS status;
321 /* data associated with BTA_AG_OPEN_EVT */
326 tBTA_SERVICE_ID service_id;
327 tBTA_AG_STATUS status;
330 /* data associated with BTA_AG_CLOSE_EVT */
337 /* data associated with BTA_AG_CONN_EVT */
341 tBTA_AG_PEER_FEAT peer_feat;
343 tBTA_AG_PEER_CODEC peer_codec;
346 /* data associated with AT command event */
351 char str[BTA_AG_AT_MAX_LEN+1];
353 UINT8 idx; /* call number used by CLCC and CHLD */
354 UINT16 lidx; /* long index, ex, HF indicator */
357 /* union of data associated with AG callback */
361 tBTA_AG_REGISTER reg;
369 typedef void (tBTA_AG_CBACK)(tBTA_AG_EVT event, tBTA_AG *p_data);
371 /* indicator constants HFP 1.1 and later */
372 #define BTA_AG_IND_CALL 1 /* position of call indicator */
373 #define BTA_AG_IND_CALLSETUP 2 /* position of callsetup indicator */
374 #define BTA_AG_IND_SERVICE 3 /* position of service indicator */
376 /* indicator constants HFP 1.5 and later */
377 #define BTA_AG_IND_SIGNAL 4 /* position of signal strength indicator */
378 #define BTA_AG_IND_ROAM 5 /* position of roaming indicator */
379 #define BTA_AG_IND_BATTCHG 6 /* position of battery charge indicator */
380 #define BTA_AG_IND_CALLHELD 7 /* position of callheld indicator */
381 #define BTA_AG_IND_BEARER 8 /* position of bearer indicator */
383 /* call indicator values */
384 #define BTA_AG_CALL_INACTIVE 0 /* Phone call inactive */
385 #define BTA_AG_CALL_ACTIVE 1 /* Phone call active */
387 /* callsetup indicator values */
388 #define BTA_AG_CALLSETUP_NONE 0 /* Not currently in call set up */
389 #define BTA_AG_CALLSETUP_INCOMING 1 /* Incoming call process ongoing */
390 #define BTA_AG_CALLSETUP_OUTGOING 2 /* Outgoing call set up is ongoing */
391 #define BTA_AG_CALLSETUP_ALERTING 3 /* Remote party being alerted in an outgoing call */
393 /* service indicator values */
394 #define BTA_AG_SERVICE_NONE 0 /* Neither CS nor VoIP service is available */
395 #define BTA_AG_SERVICE_CS 1 /* Only CS service is available */
396 #define BTA_AG_SERVICE_VOIP 2 /* Only VoIP service is available */
397 #define BTA_AG_SERVICE_CS_VOIP 3 /* Both CS and VoIP services available */
399 /* callheld indicator values */
400 #define BTA_AG_CALLHELD_INACTIVE 0 /* No held calls */
401 #define BTA_AG_CALLHELD_ACTIVE 1 /* Call held and call active */
402 #define BTA_AG_CALLHELD_NOACTIVE 2 /* Call held and no call active */
404 /* signal strength indicator values */
405 #define BTA_AG_ROAMING_INACTIVE 0 /* Phone call inactive */
406 #define BTA_AG_ROAMING_ACTIVE 1 /* Phone call active */
408 /* bearer indicator values */
409 #define BTA_AG_BEARER_WLAN 0 /* WLAN */
410 #define BTA_AG_BEARER_BLUETOOTH 1 /* Bluetooth */
411 #define BTA_AG_BEARER_WIRED 2 /* Wired */
412 #define BTA_AG_BEARER_2G3G 3 /* 2G 3G */
413 #define BTA_AG_BEARER_WIMAX 4 /* WIMAX */
414 #define BTA_AG_BEARER_RES1 5 /* Reserved */
415 #define BTA_AG_BEARER_RES2 6 /* Reserved */
416 #define BTA_AG_BEARER_RES3 7 /* Reserved */
418 /* type for HF indicator */
422 BOOLEAN is_supported;
428 /* AG configuration structure */
433 uint8_t num_local_hf_ind;
435 uint16_t sco_pkt_types;
445 /*****************************************************************************
446 ** External Function Declarations
447 *****************************************************************************/
449 /*******************************************************************************
451 ** Function BTA_AgEnable
453 ** Description Enable the audio gateway service. When the enable
454 ** operation is complete the callback function will be
455 ** called with a BTA_AG_ENABLE_EVT. This function must
456 ** be called before other function in the AG API are
459 ** Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise.
461 *******************************************************************************/
462 tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback);
464 /*******************************************************************************
466 ** Function BTA_AgDisable
468 ** Description Disable the audio gateway service
473 *******************************************************************************/
474 void BTA_AgDisable(void);
476 /*******************************************************************************
478 ** Function BTA_AgRegister
480 ** Description Register an Audio Gateway service.
485 *******************************************************************************/
486 void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,
487 tBTA_AG_FEAT features, char *p_service_names[], UINT8 app_id);
489 /*******************************************************************************
491 ** Function BTA_AgDeregister
493 ** Description Deregister an audio gateway service.
498 *******************************************************************************/
499 void BTA_AgDeregister(UINT16 handle);
501 /*******************************************************************************
503 ** Function BTA_AgOpen
505 ** Description Opens a connection to a headset or hands-free device.
506 ** When connection is open callback function is called
507 ** with a BTA_AG_OPEN_EVT. Only the data connection is
508 ** opened. The audio connection is not opened.
513 *******************************************************************************/
514 void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services);
516 /*******************************************************************************
518 ** Function BTA_AgClose
520 ** Description Close the current connection to a headset or a handsfree
521 ** Any current audio connection will also be closed
526 *******************************************************************************/
527 void BTA_AgClose(UINT16 handle);
529 /*******************************************************************************
531 ** Function BTA_AgAudioOpen
533 ** Description Opens an audio connection to the currently connected
534 ** headset or hnadsfree
539 *******************************************************************************/
540 void BTA_AgAudioOpen(UINT16 handle);
542 /*******************************************************************************
544 ** Function BTA_AgAudioClose
546 ** Description Close the currently active audio connection to a headset
547 ** or hnadsfree. The data connection remains open
552 *******************************************************************************/
553 void BTA_AgAudioClose(UINT16 handle);
555 /*******************************************************************************
557 ** Function BTA_AgResult
559 ** Description Send an AT result code to a headset or hands-free device.
560 ** This function is only used when the AG parse mode is set
566 *******************************************************************************/
567 void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data);
569 /*******************************************************************************
571 ** Function BTA_AgSetCodec
573 ** Description Specify the codec type to be used for the subsequent
580 *******************************************************************************/
581 void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec);
587 #endif /* BTA_AG_API_H */