1 /******************************************************************************
2 *
3 * Copyright 2011-2012 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 implementation of the API for the advanced audio/video (AV)
22 * subsystem of BTA, Broadcom's Bluetooth application layer for mobile
23 * phones.
24 *
25 ******************************************************************************/
26
27 #define LOG_TAG "bt_bta_av"
28
29 #include <base/logging.h>
30
31 #include "bt_target.h"
32
33 #include <string.h>
34 #include "bt_common.h"
35 #include "bta_api.h"
36 #include "bta_av_api.h"
37 #include "bta_av_int.h"
38 #include "bta_sys.h"
39
40 #include "osi/include/allocator.h"
41 #include "osi/include/log.h"
42
43 /*****************************************************************************
44 * Constants
45 ****************************************************************************/
46
47 static const tBTA_SYS_REG bta_av_reg = {bta_av_hdl_event, BTA_AvDisable};
48
49 /*******************************************************************************
50 *
51 * Function BTA_AvEnable
52 *
53 * Description Enable the advanced audio/video service. When the enable
54 * operation is complete the callback function will be
55 * called with a BTA_AV_ENABLE_EVT. This function must
56 * be called before other function in the AV API are
57 * called.
58 *
59 * Returns void
60 *
61 ******************************************************************************/
BTA_AvEnable(tBTA_SEC sec_mask,tBTA_AV_FEAT features,tBTA_AV_CBACK * p_cback)62 void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features,
63 tBTA_AV_CBACK* p_cback) {
64 tBTA_AV_API_ENABLE* p_buf =
65 (tBTA_AV_API_ENABLE*)osi_malloc(sizeof(tBTA_AV_API_ENABLE));
66
67 /* register with BTA system manager */
68 bta_sys_register(BTA_ID_AV, &bta_av_reg);
69
70 p_buf->hdr.event = BTA_AV_API_ENABLE_EVT;
71 p_buf->p_cback = p_cback;
72 p_buf->features = features;
73 p_buf->sec_mask = sec_mask;
74
75 bta_sys_sendmsg(p_buf);
76 }
77
78 /*******************************************************************************
79 *
80 * Function BTA_AvDisable
81 *
82 * Description Disable the advanced audio/video service.
83 *
84 * Returns void
85 *
86 ******************************************************************************/
BTA_AvDisable(void)87 void BTA_AvDisable(void) {
88 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
89
90 bta_sys_deregister(BTA_ID_AV);
91 p_buf->event = BTA_AV_API_DISABLE_EVT;
92
93 bta_sys_sendmsg(p_buf);
94 }
95
96 /*******************************************************************************
97 *
98 * Function BTA_AvRegister
99 *
100 * Description Register the audio or video service to stack. When the
101 * operation is complete the callback function will be
102 * called with a BTA_AV_REGISTER_EVT. This function must
103 * be called before AVDT stream is open.
104 *
105 *
106 * Returns void
107 *
108 ******************************************************************************/
BTA_AvRegister(tBTA_AV_CHNL chnl,const char * p_service_name,uint8_t app_id,tBTA_AV_SINK_DATA_CBACK * p_sink_data_cback,uint16_t service_uuid)109 void BTA_AvRegister(tBTA_AV_CHNL chnl, const char* p_service_name,
110 uint8_t app_id, tBTA_AV_SINK_DATA_CBACK* p_sink_data_cback,
111 uint16_t service_uuid) {
112 tBTA_AV_API_REG* p_buf =
113 (tBTA_AV_API_REG*)osi_malloc(sizeof(tBTA_AV_API_REG));
114
115 p_buf->hdr.layer_specific = chnl;
116 p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
117 if (p_service_name)
118 strlcpy(p_buf->p_service_name, p_service_name, BTA_SERVICE_NAME_LEN);
119 else
120 p_buf->p_service_name[0] = 0;
121 p_buf->app_id = app_id;
122 p_buf->p_app_sink_data_cback = p_sink_data_cback;
123 p_buf->service_uuid = service_uuid;
124
125 bta_sys_sendmsg(p_buf);
126 }
127
128 /*******************************************************************************
129 *
130 * Function BTA_AvDeregister
131 *
132 * Description Deregister the audio or video service
133 *
134 * Returns void
135 *
136 ******************************************************************************/
BTA_AvDeregister(tBTA_AV_HNDL hndl)137 void BTA_AvDeregister(tBTA_AV_HNDL hndl) {
138 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
139
140 p_buf->layer_specific = hndl;
141 p_buf->event = BTA_AV_API_DEREGISTER_EVT;
142
143 bta_sys_sendmsg(p_buf);
144 }
145
146 /*******************************************************************************
147 *
148 * Function BTA_AvOpen
149 *
150 * Description Opens an advanced audio/video connection to a peer device.
151 * When connection is open callback function is called
152 * with a BTA_AV_OPEN_EVT.
153 *
154 * Returns void
155 *
156 ******************************************************************************/
BTA_AvOpen(const RawAddress & bd_addr,tBTA_AV_HNDL handle,bool use_rc,tBTA_SEC sec_mask,uint16_t uuid)157 void BTA_AvOpen(const RawAddress& bd_addr, tBTA_AV_HNDL handle, bool use_rc,
158 tBTA_SEC sec_mask, uint16_t uuid) {
159 LOG_INFO("%s: peer %s bta_handle:0x%x use_rc=%s sec_mask=0x%x uuid=0x%x",
160 __func__, bd_addr.ToString().c_str(), handle,
161 (use_rc) ? "true" : "false", sec_mask, uuid);
162
163 tBTA_AV_API_OPEN* p_buf =
164 (tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
165
166 p_buf->hdr.event = BTA_AV_API_OPEN_EVT;
167 p_buf->hdr.layer_specific = handle;
168 p_buf->bd_addr = bd_addr;
169 p_buf->use_rc = use_rc;
170 p_buf->sec_mask = sec_mask;
171 p_buf->switch_res = BTA_AV_RS_NONE;
172 p_buf->uuid = uuid;
173
174 bta_sys_sendmsg(p_buf);
175 }
176
177 /*******************************************************************************
178 *
179 * Function BTA_AvClose
180 *
181 * Description Close the current streams.
182 *
183 * Returns void
184 *
185 ******************************************************************************/
BTA_AvClose(tBTA_AV_HNDL handle)186 void BTA_AvClose(tBTA_AV_HNDL handle) {
187 LOG_INFO("%s: bta_handle:0x%x", __func__, handle);
188
189 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
190
191 p_buf->event = BTA_AV_API_CLOSE_EVT;
192 p_buf->layer_specific = handle;
193
194 bta_sys_sendmsg(p_buf);
195 }
196
197 /*******************************************************************************
198 *
199 * Function BTA_AvDisconnect
200 *
201 * Description Close the connection to the address.
202 *
203 * Returns void
204 *
205 ******************************************************************************/
BTA_AvDisconnect(const RawAddress & bd_addr)206 void BTA_AvDisconnect(const RawAddress& bd_addr) {
207 LOG_INFO("%s: peer %s", __func__, bd_addr.ToString().c_str());
208
209 tBTA_AV_API_DISCNT* p_buf =
210 (tBTA_AV_API_DISCNT*)osi_malloc(sizeof(tBTA_AV_API_DISCNT));
211
212 p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT;
213 p_buf->bd_addr = bd_addr;
214
215 bta_sys_sendmsg(p_buf);
216 }
217
218 /*******************************************************************************
219 *
220 * Function BTA_AvStart
221 *
222 * Description Start audio/video stream data transfer.
223 *
224 * Returns void
225 *
226 ******************************************************************************/
BTA_AvStart(tBTA_AV_HNDL handle)227 void BTA_AvStart(tBTA_AV_HNDL handle) {
228 LOG_INFO("%s: bta_handle=0x%x", __func__, handle);
229
230 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
231
232 p_buf->event = BTA_AV_API_START_EVT;
233 p_buf->layer_specific = handle;
234
235 bta_sys_sendmsg(p_buf);
236 }
237
238 /*******************************************************************************
239 *
240 * Function BTA_AvOffloadStart
241 *
242 * Description Start a2dp audio offloading.
243 *
244 * Returns void
245 *
246 ******************************************************************************/
BTA_AvOffloadStart(tBTA_AV_HNDL hndl)247 void BTA_AvOffloadStart(tBTA_AV_HNDL hndl) {
248 LOG_INFO("%s: bta_handle=0x%x", __func__, hndl);
249
250 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
251
252 p_buf->event = BTA_AV_API_OFFLOAD_START_EVT;
253 p_buf->layer_specific = hndl;
254
255 bta_sys_sendmsg(p_buf);
256 }
257
258 /*******************************************************************************
259 *
260 * Function BTA_AvOffloadStartRsp
261 *
262 * Description Response from vendor lib for A2DP Offload Start request.
263 *
264 * Returns void
265 *
266 ******************************************************************************/
BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl,tBTA_AV_STATUS status)267 void BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl, tBTA_AV_STATUS status) {
268 tBTA_AV_API_STATUS_RSP* p_buf =
269 (tBTA_AV_API_STATUS_RSP*)osi_malloc(sizeof(tBTA_AV_API_STATUS_RSP));
270
271 p_buf->hdr.event = BTA_AV_API_OFFLOAD_START_RSP_EVT;
272 p_buf->hdr.layer_specific = hndl;
273 p_buf->status = status;
274
275 bta_sys_sendmsg(p_buf);
276 }
277
278 /*******************************************************************************
279 *
280 * Function BTA_AvStop
281 *
282 * Description Stop audio/video stream data transfer.
283 * If suspend is true, this function sends AVDT suspend signal
284 * to the connected peer(s).
285 *
286 * Returns void
287 *
288 ******************************************************************************/
BTA_AvStop(tBTA_AV_HNDL handle,bool suspend)289 void BTA_AvStop(tBTA_AV_HNDL handle, bool suspend) {
290 LOG_INFO("%s: bta_handle=0x%x suspend=%s", __func__, handle,
291 logbool(suspend).c_str());
292
293 tBTA_AV_API_STOP* p_buf =
294 (tBTA_AV_API_STOP*)osi_malloc(sizeof(tBTA_AV_API_STOP));
295
296 p_buf->hdr.event = BTA_AV_API_STOP_EVT;
297 p_buf->hdr.layer_specific = handle;
298 p_buf->flush = true;
299 p_buf->suspend = suspend;
300 p_buf->reconfig_stop = false;
301
302 bta_sys_sendmsg(p_buf);
303 }
304
305 /*******************************************************************************
306 *
307 * Function BTA_AvReconfig
308 *
309 * Description Reconfigure the audio/video stream.
310 * If suspend is true, this function tries the
311 * suspend/reconfigure procedure first.
312 * If suspend is false or when suspend/reconfigure fails,
313 * this function closes and re-opens the AVDT connection.
314 *
315 * Returns void
316 *
317 ******************************************************************************/
BTA_AvReconfig(tBTA_AV_HNDL hndl,bool suspend,uint8_t sep_info_idx,uint8_t * p_codec_info,uint8_t num_protect,const uint8_t * p_protect_info)318 void BTA_AvReconfig(tBTA_AV_HNDL hndl, bool suspend, uint8_t sep_info_idx,
319 uint8_t* p_codec_info, uint8_t num_protect,
320 const uint8_t* p_protect_info) {
321 LOG_INFO("%s: bta_handle=0x%x suspend=%s sep_info_idx=%d", __func__, hndl,
322 logbool(suspend).c_str(), sep_info_idx);
323
324 tBTA_AV_API_RCFG* p_buf =
325 (tBTA_AV_API_RCFG*)osi_malloc(sizeof(tBTA_AV_API_RCFG) + num_protect);
326
327 p_buf->hdr.layer_specific = hndl;
328 p_buf->hdr.event = BTA_AV_API_RECONFIG_EVT;
329 p_buf->num_protect = num_protect;
330 p_buf->suspend = suspend;
331 p_buf->sep_info_idx = sep_info_idx;
332 p_buf->p_protect_info = (uint8_t*)(p_buf + 1);
333 memcpy(p_buf->codec_info, p_codec_info, AVDT_CODEC_SIZE);
334 memcpy(p_buf->p_protect_info, p_protect_info, num_protect);
335
336 bta_sys_sendmsg(p_buf);
337 }
338
339 /*******************************************************************************
340 *
341 * Function BTA_AvProtectReq
342 *
343 * Description Send a content protection request. This function can only
344 * be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
345 *
346 * Returns void
347 *
348 ******************************************************************************/
BTA_AvProtectReq(tBTA_AV_HNDL hndl,uint8_t * p_data,uint16_t len)349 void BTA_AvProtectReq(tBTA_AV_HNDL hndl, uint8_t* p_data, uint16_t len) {
350 tBTA_AV_API_PROTECT_REQ* p_buf = (tBTA_AV_API_PROTECT_REQ*)osi_malloc(
351 sizeof(tBTA_AV_API_PROTECT_REQ) + len);
352
353 p_buf->hdr.layer_specific = hndl;
354 p_buf->hdr.event = BTA_AV_API_PROTECT_REQ_EVT;
355 p_buf->len = len;
356 if (p_data == NULL) {
357 p_buf->p_data = NULL;
358 } else {
359 p_buf->p_data = (uint8_t*)(p_buf + 1);
360 memcpy(p_buf->p_data, p_data, len);
361 }
362
363 bta_sys_sendmsg(p_buf);
364 }
365
366 /*******************************************************************************
367 *
368 * Function BTA_AvProtectRsp
369 *
370 * Description Send a content protection response. This function must
371 * be called if a BTA_AV_PROTECT_REQ_EVT is received.
372 * This function can only be used if AV is enabled with
373 * feature BTA_AV_FEAT_PROTECT.
374 *
375 * Returns void
376 *
377 ******************************************************************************/
BTA_AvProtectRsp(tBTA_AV_HNDL hndl,uint8_t error_code,uint8_t * p_data,uint16_t len)378 void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, uint8_t error_code, uint8_t* p_data,
379 uint16_t len) {
380 tBTA_AV_API_PROTECT_RSP* p_buf = (tBTA_AV_API_PROTECT_RSP*)osi_malloc(
381 sizeof(tBTA_AV_API_PROTECT_RSP) + len);
382
383 p_buf->hdr.layer_specific = hndl;
384 p_buf->hdr.event = BTA_AV_API_PROTECT_RSP_EVT;
385 p_buf->len = len;
386 p_buf->error_code = error_code;
387 if (p_data == NULL) {
388 p_buf->p_data = NULL;
389 } else {
390 p_buf->p_data = (uint8_t*)(p_buf + 1);
391 memcpy(p_buf->p_data, p_data, len);
392 }
393
394 bta_sys_sendmsg(p_buf);
395 }
396
397 /*******************************************************************************
398 *
399 * Function BTA_AvRemoteCmd
400 *
401 * Description Send a remote control command. This function can only
402 * be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
403 *
404 * Returns void
405 *
406 ******************************************************************************/
BTA_AvRemoteCmd(uint8_t rc_handle,uint8_t label,tBTA_AV_RC rc_id,tBTA_AV_STATE key_state)407 void BTA_AvRemoteCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_RC rc_id,
408 tBTA_AV_STATE key_state) {
409 tBTA_AV_API_REMOTE_CMD* p_buf =
410 (tBTA_AV_API_REMOTE_CMD*)osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD));
411
412 p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
413 p_buf->hdr.layer_specific = rc_handle;
414 p_buf->msg.op_id = rc_id;
415 p_buf->msg.state = key_state;
416 p_buf->msg.p_pass_data = NULL;
417 p_buf->msg.pass_len = 0;
418 p_buf->label = label;
419
420 bta_sys_sendmsg(p_buf);
421 }
422
423 /*******************************************************************************
424 *
425 * Function BTA_AvRemoteVendorUniqueCmd
426 *
427 * Description Send a remote control command with Vendor Unique rc_id.
428 * This function can only be used if AV is enabled with
429 * feature BTA_AV_FEAT_RCCT.
430 *
431 * Returns void
432 *
433 ******************************************************************************/
BTA_AvRemoteVendorUniqueCmd(uint8_t rc_handle,uint8_t label,tBTA_AV_STATE key_state,uint8_t * p_msg,uint8_t buf_len)434 void BTA_AvRemoteVendorUniqueCmd(uint8_t rc_handle, uint8_t label,
435 tBTA_AV_STATE key_state, uint8_t* p_msg,
436 uint8_t buf_len) {
437 tBTA_AV_API_REMOTE_CMD* p_buf = (tBTA_AV_API_REMOTE_CMD*)osi_malloc(
438 sizeof(tBTA_AV_API_REMOTE_CMD) + buf_len);
439
440 p_buf->label = label;
441 p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
442 p_buf->hdr.layer_specific = rc_handle;
443 p_buf->msg.op_id = AVRC_ID_VENDOR;
444 p_buf->msg.state = key_state;
445 p_buf->msg.pass_len = buf_len;
446 if (p_msg == NULL) {
447 p_buf->msg.p_pass_data = NULL;
448 } else {
449 p_buf->msg.p_pass_data = (uint8_t*)(p_buf + 1);
450 memcpy(p_buf->msg.p_pass_data, p_msg, buf_len);
451 }
452 bta_sys_sendmsg(p_buf);
453 }
454
455 /*******************************************************************************
456 *
457 * Function BTA_AvVendorCmd
458 *
459 * Description Send a vendor dependent remote control command. This
460 * function can only be used if AV is enabled with feature
461 * BTA_AV_FEAT_VENDOR.
462 *
463 * Returns void
464 *
465 ******************************************************************************/
BTA_AvVendorCmd(uint8_t rc_handle,uint8_t label,tBTA_AV_CODE cmd_code,uint8_t * p_data,uint16_t len)466 void BTA_AvVendorCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE cmd_code,
467 uint8_t* p_data, uint16_t len) {
468 tBTA_AV_API_VENDOR* p_buf =
469 (tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
470
471 p_buf->hdr.event = BTA_AV_API_VENDOR_CMD_EVT;
472 p_buf->hdr.layer_specific = rc_handle;
473 p_buf->msg.hdr.ctype = cmd_code;
474 p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
475 p_buf->msg.hdr.subunit_id = 0;
476 p_buf->msg.company_id = p_bta_av_cfg->company_id;
477 p_buf->label = label;
478 p_buf->msg.vendor_len = len;
479 if (p_data == NULL) {
480 p_buf->msg.p_vendor_data = NULL;
481 } else {
482 p_buf->msg.p_vendor_data = (uint8_t*)(p_buf + 1);
483 memcpy(p_buf->msg.p_vendor_data, p_data, len);
484 }
485
486 bta_sys_sendmsg(p_buf);
487 }
488
489 /*******************************************************************************
490 *
491 * Function BTA_AvVendorRsp
492 *
493 * Description Send a vendor dependent remote control response.
494 * This function must be called if a BTA_AV_VENDOR_CMD_EVT
495 * is received. This function can only be used if AV is
496 * enabled with feature BTA_AV_FEAT_VENDOR.
497 *
498 * Returns void
499 *
500 ******************************************************************************/
BTA_AvVendorRsp(uint8_t rc_handle,uint8_t label,tBTA_AV_CODE rsp_code,uint8_t * p_data,uint16_t len,uint32_t company_id)501 void BTA_AvVendorRsp(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code,
502 uint8_t* p_data, uint16_t len, uint32_t company_id) {
503 tBTA_AV_API_VENDOR* p_buf =
504 (tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
505
506 p_buf->hdr.event = BTA_AV_API_VENDOR_RSP_EVT;
507 p_buf->hdr.layer_specific = rc_handle;
508 p_buf->msg.hdr.ctype = rsp_code;
509 p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
510 p_buf->msg.hdr.subunit_id = 0;
511 if (company_id)
512 p_buf->msg.company_id = company_id;
513 else
514 p_buf->msg.company_id = p_bta_av_cfg->company_id;
515 p_buf->label = label;
516 p_buf->msg.vendor_len = len;
517 if (p_data == NULL) {
518 p_buf->msg.p_vendor_data = NULL;
519 } else {
520 p_buf->msg.p_vendor_data = (uint8_t*)(p_buf + 1);
521 memcpy(p_buf->msg.p_vendor_data, p_data, len);
522 }
523
524 bta_sys_sendmsg(p_buf);
525 }
526
527 /*******************************************************************************
528 *
529 * Function BTA_AvOpenRc
530 *
531 * Description Open an AVRCP connection toward the device with the
532 * specified handle
533 *
534 * Returns void
535 *
536 ******************************************************************************/
BTA_AvOpenRc(tBTA_AV_HNDL handle)537 void BTA_AvOpenRc(tBTA_AV_HNDL handle) {
538 tBTA_AV_API_OPEN_RC* p_buf =
539 (tBTA_AV_API_OPEN_RC*)osi_malloc(sizeof(tBTA_AV_API_OPEN_RC));
540
541 p_buf->hdr.event = BTA_AV_API_RC_OPEN_EVT;
542 p_buf->hdr.layer_specific = handle;
543
544 bta_sys_sendmsg(p_buf);
545 }
546
547 /*******************************************************************************
548 *
549 * Function BTA_AvCloseRc
550 *
551 * Description Close an AVRCP connection
552 *
553 * Returns void
554 *
555 ******************************************************************************/
BTA_AvCloseRc(uint8_t rc_handle)556 void BTA_AvCloseRc(uint8_t rc_handle) {
557 tBTA_AV_API_CLOSE_RC* p_buf =
558 (tBTA_AV_API_CLOSE_RC*)osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC));
559
560 p_buf->hdr.event = BTA_AV_API_RC_CLOSE_EVT;
561 p_buf->hdr.layer_specific = rc_handle;
562
563 bta_sys_sendmsg(p_buf);
564 }
565
566 /*******************************************************************************
567 *
568 * Function BTA_AvMetaRsp
569 *
570 * Description Send a Metadata/Advanced Control response. The message
571 * contained in p_pkt can be composed with AVRC utility
572 * functions.
573 * This function can only be used if AV is enabled with feature
574 * BTA_AV_FEAT_METADATA.
575 *
576 * Returns void
577 *
578 ******************************************************************************/
BTA_AvMetaRsp(uint8_t rc_handle,uint8_t label,tBTA_AV_CODE rsp_code,BT_HDR * p_pkt)579 void BTA_AvMetaRsp(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code,
580 BT_HDR* p_pkt) {
581 tBTA_AV_API_META_RSP* p_buf =
582 (tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
583
584 p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
585 p_buf->hdr.layer_specific = rc_handle;
586 p_buf->rsp_code = rsp_code;
587 p_buf->p_pkt = p_pkt;
588 p_buf->is_rsp = true;
589 p_buf->label = label;
590
591 bta_sys_sendmsg(p_buf);
592 }
593
594 /*******************************************************************************
595 *
596 * Function BTA_AvMetaCmd
597 *
598 * Description Send a Metadata/Advanced Control command. The message
599 *contained
600 * in p_pkt can be composed with AVRC utility functions.
601 * This function can only be used if AV is enabled with feature
602 * BTA_AV_FEAT_METADATA.
603 * This message is sent only when the peer supports the TG
604 *role.
605 *8 The only command makes sense right now is the absolute
606 *volume command.
607 *
608 * Returns void
609 *
610 ******************************************************************************/
BTA_AvMetaCmd(uint8_t rc_handle,uint8_t label,tBTA_AV_CMD cmd_code,BT_HDR * p_pkt)611 void BTA_AvMetaCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_CMD cmd_code,
612 BT_HDR* p_pkt) {
613 tBTA_AV_API_META_RSP* p_buf =
614 (tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
615
616 p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
617 p_buf->hdr.layer_specific = rc_handle;
618 p_buf->p_pkt = p_pkt;
619 p_buf->rsp_code = cmd_code;
620 p_buf->is_rsp = false;
621 p_buf->label = label;
622
623 bta_sys_sendmsg(p_buf);
624 }
625