1/******************************************************************************
2 *
3 *  Copyright (C) 2009-2012 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 interface file contains the interface to the Multi-Channel
22 *  Adaptation Protocol (MCAP).
23 *
24 ******************************************************************************/
25#ifndef MCA_API_H
26#define MCA_API_H
27
28#include "bt_target.h"
29#include "l2c_api.h"
30
31/* move the following to bt_target.h or other place later */
32#define MCA_NUM_TC_TBL ((MCA_NUM_REGS) * (MCA_NUM_LINKS) * (MCA_NUM_MDLS + 1))
33/* Number of control channel control blocks	*/
34#define MCA_NUM_CCBS ((MCA_NUM_REGS) * (MCA_NUM_LINKS))
35/* Number of data channel control blocks */
36#define MCA_NUM_DCBS ((MCA_NUM_REGS) * (MCA_NUM_LINKS) * (MCA_NUM_MDLS))
37
38/*****************************************************************************
39 * constants
40 ****************************************************************************/
41/* API function return value result codes. */
42#define MCA_SUCCESS 0      /* Function successful */
43#define MCA_BAD_PARAMS 1   /* Invalid parameters */
44#define MCA_NO_RESOURCES 2 /* Not enough resources */
45#define MCA_BAD_HANDLE 3   /* Bad handle */
46#define MCA_BUSY 4         /* A procedure is already in progress */
47#define MCA_WRITE_FAIL 5   /* Write failed */
48#define MCA_BAD_MDL_ID 6   /* MDL ID is not valid for the current API */
49typedef uint8_t tMCA_RESULT;
50
51/* MDEP data type.  */
52#define MCA_TDEP_ECHO 0 /* MDEP for echo test  */
53#define MCA_TDEP_DATA 1 /* MDEP for normal data */
54
55/* Control callback events. */
56#define MCA_ERROR_RSP_EVT 0     /* error response */
57#define MCA_CREATE_IND_EVT 1    /* create mdl indication */
58#define MCA_CREATE_CFM_EVT 2    /* create mdl confirm */
59#define MCA_RECONNECT_IND_EVT 3 /* reconnect mdl indication */
60#define MCA_RECONNECT_CFM_EVT 4 /* reconnect mdl confirm */
61#define MCA_ABORT_IND_EVT 5     /* abort mdl indication */
62#define MCA_ABORT_CFM_EVT 6     /* abort mdl confirm */
63#define MCA_DELETE_IND_EVT 7    /* delete mdl indication */
64#define MCA_DELETE_CFM_EVT 8    /* delete mdl confirm */
65
66/* request sync capabilities & requirements */
67#define MCA_SYNC_CAP_IND_EVT 0x11
68#define MCA_SYNC_CAP_CFM_EVT 0x12 /* indicate completion */
69/* request to set the time-stamp clock */
70#define MCA_SYNC_SET_IND_EVT 0x13
71#define MCA_SYNC_SET_CFM_EVT 0x14 /* indicate completion */
72/* update of the actual time-stamp clock instant from the sync slave */
73#define MCA_SYNC_INFO_IND_EVT 0x15
74
75#define MCA_CONNECT_IND_EVT 0x20    /* Control channel connected */
76#define MCA_DISCONNECT_IND_EVT 0x21 /* Control channel disconnected */
77#define MCA_OPEN_IND_EVT 0x22       /* Data channel open indication */
78#define MCA_OPEN_CFM_EVT 0x23       /* Data channel open confirm */
79#define MCA_CLOSE_IND_EVT 0x24      /* Data channel close indication */
80#define MCA_CLOSE_CFM_EVT 0x25      /* Data channel close confirm */
81#define MCA_CONG_CHG_EVT 0x26       /* congestion change event */
82#define MCA_RSP_TOUT_IND_EVT                       \
83  0x27 /* Control channel message response timeout \
84          */
85/*****************************************************************************
86 *  Type Definitions
87 ****************************************************************************/
88typedef uint8_t
89    tMCA_HANDLE;         /* the handle for registration. 1 based index to rcb */
90typedef uint8_t tMCA_CL; /* the handle for a control channel; reported at
91                            MCA_CONNECT_IND_EVT */
92typedef uint8_t
93    tMCA_DEP; /* the handle for MCA_CreateDep. This is also the local mdep_id */
94typedef uint16_t tMCA_DL; /* the handle for the data channel. This is reported
95                             at MCA_OPEN_CFM_EVT or MCA_OPEN_IND_EVT */
96
97/* This is the data callback function.  It is executed when MCAP has a data
98 * packet ready for the application.
99*/
100typedef void(tMCA_DATA_CBACK)(tMCA_DL mdl, BT_HDR* p_pkt);
101
102/* This structure contains parameters which are set at registration. */
103typedef struct {
104  uint32_t rsp_tout; /* MCAP signaling response timeout */
105  uint16_t ctrl_psm; /* L2CAP PSM for the MCAP control channel */
106  uint16_t data_psm; /* L2CAP PSM for the MCAP data channel */
107  uint16_t sec_mask; /* Security mask for BTM_SetSecurityLevel() */
108} tMCA_REG;
109
110/* This structure contains parameters to create a MDEP. */
111typedef struct {
112  uint8_t type; /* MCA_TDEP_DATA, or MCA_TDEP_ECHO. a regiatration may have only
113                   one MCA_TDEP_ECHO MDEP */
114  uint8_t max_mdl; /* The maximum number of MDLs for this MDEP (max is
115                      MCA_NUM_MDLS) */
116  tMCA_DATA_CBACK* p_data_cback; /* Data callback function */
117} tMCA_CS;
118
119#define MCA_FCS_NONE 0      /* fcs_present=false */
120#define MCA_FCS_BYPASS 0x10 /* fcs_present=true, fcs=L2CAP_CFG_FCS_BYPASS */
121#define MCA_FCS_USE 0x11    /* fcs_present=true, fcs=L2CAP_CFG_FCS_USE */
122#define MCA_FCS_PRESNT_MASK 0x10 /* fcs_present=true */
123#define MCA_FCS_USE_MASK 0x01    /* mask for fcs */
124typedef uint8_t tMCA_FCS_OPT;
125
126/* This structure contains L2CAP configuration parameters for the channel. */
127typedef struct {
128  tL2CAP_FCR_OPTS fcr_opt;
129  uint16_t user_rx_buf_size;
130  uint16_t user_tx_buf_size;
131  uint16_t fcr_rx_buf_size;
132  uint16_t fcr_tx_buf_size;
133  tMCA_FCS_OPT fcs;
134  uint16_t data_mtu; /* L2CAP MTU of the MCAP data channel */
135} tMCA_CHNL_CFG;
136
137/* Header structure for callback event parameters. */
138typedef struct {
139  uint16_t mdl_id; /* The associated MDL ID */
140  uint8_t op_code; /* The op (request/response) code */
141} tMCA_EVT_HDR;
142
143/* Response Header structure for callback event parameters. */
144typedef struct {
145  uint16_t mdl_id;  /* The associated MDL ID */
146  uint8_t op_code;  /* The op (request/response) code */
147  uint8_t rsp_code; /* The response code */
148} tMCA_RSP_EVT;
149
150/* This data structure is associated with the MCA_CREATE_IND_EVT. */
151typedef struct {
152  uint16_t mdl_id; /* The associated MDL ID */
153  uint8_t op_code; /* The op (request/response) code */
154  uint8_t dep_id;  /* MDEP ID */
155  uint8_t cfg;     /* The configuration to negotiate */
156} tMCA_CREATE_IND;
157
158/* This data structure is associated with the MCA_CREATE_CFM_EVT. */
159typedef struct {
160  uint16_t mdl_id;  /* The associated MDL ID */
161  uint8_t op_code;  /* The op (request/response) code */
162  uint8_t rsp_code; /* The response code. */
163  uint8_t cfg;      /* The configuration to negotiate */
164} tMCA_CREATE_CFM;
165
166/* This data structure is associated with MCA_CONNECT_IND_EVT. */
167typedef struct {
168  BD_ADDR bd_addr; /* The peer address */
169  uint16_t mtu;    /* peer mtu */
170} tMCA_CONNECT_IND;
171
172/* This data structure is associated with MCA_DISCONNECT_IND_EVT. */
173typedef struct {
174  BD_ADDR bd_addr; /* The peer address */
175  uint16_t reason; /* disconnect reason given by L2CAP */
176} tMCA_DISCONNECT_IND;
177
178/* This data structure is for MCA_OPEN_IND_EVT, and MCA_OPEN_CFM_EVT. */
179typedef struct {
180  uint16_t mdl_id; /* The associated MDL ID */
181  tMCA_DL mdl;     /* The handle for the data channel */
182  uint16_t mtu;    /* peer mtu */
183} tMCA_DL_OPEN;
184
185/* This data structure is for MCA_CLOSE_IND_EVT and MCA_CLOSE_CFM_EVT. */
186typedef struct {
187  uint16_t mdl_id; /* The associated MDL ID */
188  tMCA_DL mdl;     /* The handle for the data channel */
189  uint16_t reason; /* disconnect reason given by L2CAP */
190} tMCA_DL_CLOSE;
191
192/* This data structure is associated with MCA_CONG_CHG_EVT. */
193typedef struct {
194  uint16_t mdl_id; /* N/A - This is a place holder */
195  tMCA_DL mdl;     /* The handle for the data channel */
196  bool cong;       /* true, if the channel is congested */
197} tMCA_CONG_CHG;
198
199/* Union of all control callback event data structures */
200typedef union {
201  tMCA_EVT_HDR hdr;
202  tMCA_RSP_EVT rsp;
203  tMCA_CREATE_IND create_ind;
204  tMCA_CREATE_CFM create_cfm;
205  tMCA_EVT_HDR reconnect_ind;
206  tMCA_RSP_EVT reconnect_cfm;
207  tMCA_EVT_HDR abort_ind;
208  tMCA_RSP_EVT abort_cfm;
209  tMCA_EVT_HDR delete_ind;
210  tMCA_RSP_EVT delete_cfm;
211  tMCA_CONNECT_IND connect_ind;
212  tMCA_DISCONNECT_IND disconnect_ind;
213  tMCA_DL_OPEN open_ind;
214  tMCA_DL_OPEN open_cfm;
215  tMCA_DL_CLOSE close_ind;
216  tMCA_DL_CLOSE close_cfm;
217  tMCA_CONG_CHG cong_chg;
218} tMCA_CTRL;
219
220/* This is the control callback function.  This function passes control events
221 * to the application.
222*/
223typedef void(tMCA_CTRL_CBACK)(tMCA_HANDLE handle, tMCA_CL mcl, uint8_t event,
224                              tMCA_CTRL* p_data);
225
226/*******************************************************************************
227 *
228 * Function         MCA_Init
229 *
230 * Description      Initialize MCAP internal control blocks.
231 *                  This function is called at stack start up.
232 *
233 * Returns          void
234 *
235 ******************************************************************************/
236extern void MCA_Init(void);
237
238/*******************************************************************************
239 *
240 * Function         MCA_SetTraceLevel
241 *
242 * Description      This function sets the debug trace level for MCA.
243 *                  If 0xff is passed, the current trace level is returned.
244 *
245 *                  Input Parameters:
246 *                      level:  The level to set the MCA tracing to:
247 *                      0xff-returns the current setting.
248 *                      0-turns off tracing.
249 *                      >= 1-Errors.
250 *                      >= 2-Warnings.
251 *                      >= 3-APIs.
252 *                      >= 4-Events.
253 *                      >= 5-Debug.
254 *
255 * Returns          The new trace level or current trace level if
256 *                  the input parameter is 0xff.
257 *
258 ******************************************************************************/
259extern uint8_t MCA_SetTraceLevel(uint8_t level);
260
261/*******************************************************************************
262 *
263 * Function         MCA_Register
264 *
265 * Description      This function registers an MCAP implementation.
266 *                  It is assumed that the control channel PSM and data channel
267 *                  PSM are not used by any other instances of the stack.
268 *                  If the given p_reg->ctrl_psm is 0, this handle is INT only.
269 *
270 * Returns          0, if failed. Otherwise, the MCA handle.
271 *
272 ******************************************************************************/
273extern tMCA_HANDLE MCA_Register(tMCA_REG* p_reg, tMCA_CTRL_CBACK* p_cback);
274
275/*******************************************************************************
276 *
277 * Function         MCA_Deregister
278 *
279 * Description      Deregister an MCAP implementation. Before this function can
280 *                  be called, all control and data channels must be removed
281 *                  with MCA_DisconnectReq and MCA_CloseReq.
282 *
283 * Returns          void
284 *
285 ******************************************************************************/
286extern void MCA_Deregister(tMCA_HANDLE handle);
287
288/*******************************************************************************
289 *
290 * Function         MCA_CreateDep
291 *
292 * Description      Create a data endpoint.  If the MDEP is created
293 *                  successfully, the MDEP ID is returned in *p_dep. After a
294 *                  data endpoint is created, an application can initiate a
295 *                  connection between this endpoint and an endpoint on a peer
296 *                  device.
297 *
298 * Returns          MCA_SUCCESS if successful, otherwise error.
299 *
300 ******************************************************************************/
301extern tMCA_RESULT MCA_CreateDep(tMCA_HANDLE handle, tMCA_DEP* p_dep,
302                                 tMCA_CS* p_cs);
303
304/*******************************************************************************
305 *
306 * Function         MCA_DeleteDep
307 *
308 * Description      Delete a data endpoint.  This function is called when
309 *                  the implementation is no longer using a data endpoint.
310 *                  If this function is called when the endpoint is connected
311 *                  the connection is closed and the data endpoint
312 *                  is removed.
313 *
314 * Returns          MCA_SUCCESS if successful, otherwise error.
315 *
316 ******************************************************************************/
317extern tMCA_RESULT MCA_DeleteDep(tMCA_HANDLE handle, tMCA_DEP dep);
318
319/*******************************************************************************
320 *
321 * Function         MCA_ConnectReq
322 *
323 * Description      This function initiates an MCAP control channel connection
324 *                  to the peer device.  When the connection is completed, an
325 *                  MCA_CONNECT_IND_EVT is reported to the application via its
326 *                  control callback function.
327 *                  This control channel is identified by tMCA_CL.
328 *                  If the connection attempt fails, an MCA_DISCONNECT_IND_EVT
329 *                  is reported. The security mask parameter overrides the
330 *                  outgoing security mask set in MCA_Register().
331 *
332 * Returns          MCA_SUCCESS if successful, otherwise error.
333 *
334 ******************************************************************************/
335extern tMCA_RESULT MCA_ConnectReq(tMCA_HANDLE handle, BD_ADDR bd_addr,
336                                  uint16_t ctrl_psm, uint16_t sec_mask);
337
338/*******************************************************************************
339 *
340 * Function         MCA_DisconnectReq
341 *
342 * Description      This function disconnect an MCAP control channel
343 *                  to the peer device.
344 *                  If associated data channel exists, they are disconnected.
345 *                  When the MCL is disconnected an MCA_DISCONNECT_IND_EVT is
346 *                  reported to the application via its control callback
347 *                  function.
348 *
349 * Returns          MCA_SUCCESS if successful, otherwise error.
350 *
351 ******************************************************************************/
352extern tMCA_RESULT MCA_DisconnectReq(tMCA_CL mcl);
353
354/*******************************************************************************
355 *
356 * Function         MCA_CreateMdl
357 *
358 * Description      This function sends a CREATE_MDL request to the peer device.
359 *                  When the response is received, a MCA_CREATE_CFM_EVT is
360 *                  reported with the given MDL ID.
361 *                  If the response is successful, a data channel is open
362 *                  with the given p_chnl_cfg
363 *                  When the data channel is open successfully, a
364 *                  MCA_OPEN_CFM_EVT is reported. This data channel is
365 *                  identified as tMCA_DL.
366 *
367 * Returns          MCA_SUCCESS if successful, otherwise error.
368 *
369 ******************************************************************************/
370extern tMCA_RESULT MCA_CreateMdl(tMCA_CL mcl, tMCA_DEP dep, uint16_t data_psm,
371                                 uint16_t mdl_id, uint8_t peer_dep_id,
372                                 uint8_t cfg, const tMCA_CHNL_CFG* p_chnl_cfg);
373
374/*******************************************************************************
375 *
376 * Function         MCA_CreateMdlRsp
377 *
378 * Description      This function sends a CREATE_MDL response to the peer device
379 *                  in response to a received MCA_CREATE_IND_EVT.
380 *                  If the rsp_code is successful, a data channel is open
381 *                  with the given p_chnl_cfg
382 *                  When the data channel is open successfully, a
383 *                  MCA_OPEN_IND_EVT is reported. This data channel is
384 *                  identified as tMCA_DL.
385 *
386 * Returns          MCA_SUCCESS if successful, otherwise error.
387 *
388 ******************************************************************************/
389extern tMCA_RESULT MCA_CreateMdlRsp(tMCA_CL mcl, tMCA_DEP dep, uint16_t mdl_id,
390                                    uint8_t cfg, uint8_t rsp_code,
391                                    const tMCA_CHNL_CFG* p_chnl_cfg);
392
393/*******************************************************************************
394 *
395 * Function         MCA_CloseReq
396 *
397 * Description      Close a data channel.  When the channel is closed, an
398 *                  MCA_CLOSE_CFM_EVT is sent to the application via the
399 *                  control callback function for this handle.
400 *
401 * Returns          MCA_SUCCESS if successful, otherwise error.
402 *
403 ******************************************************************************/
404extern tMCA_RESULT MCA_CloseReq(tMCA_DL mdl);
405
406/*******************************************************************************
407 *
408 * Function         MCA_ReconnectMdl
409 *
410 * Description      This function sends a RECONNECT_MDL request to the peer
411 *                  device. When the response is received, a
412 *                  MCA_RECONNECT_CFM_EVT is reported. If the response is
413 *                  successful, a data channel is open. When the data channel is
414 *                  open successfully, a MCA_OPEN_CFM_EVT is reported.
415 *
416 * Returns          MCA_SUCCESS if successful, otherwise error.
417 *
418 ******************************************************************************/
419extern tMCA_RESULT MCA_ReconnectMdl(tMCA_CL mcl, tMCA_DEP dep,
420                                    uint16_t data_psm, uint16_t mdl_id,
421                                    const tMCA_CHNL_CFG* p_chnl_cfg);
422
423/*******************************************************************************
424 *
425 * Function         MCA_ReconnectMdlRsp
426 *
427 * Description      Send a RECONNECT_MDL response to the peer device in response
428 *                  to a MCA_RECONNECT_IND_EVT event.
429 *                  If the response is successful, a data channel is open.
430 *                  When the data channel is open successfully, a
431 *                  MCA_OPEN_IND_EVT is reported.
432 *
433 * Returns          MCA_SUCCESS if successful, otherwise error.
434 *
435 ******************************************************************************/
436extern tMCA_RESULT MCA_ReconnectMdlRsp(tMCA_CL mcl, tMCA_DEP dep,
437                                       uint16_t mdl_id, uint8_t rsp_code,
438                                       const tMCA_CHNL_CFG* p_chnl_cfg);
439
440/*******************************************************************************
441 *
442 * Function         MCA_DataChnlCfg
443 *
444 * Description      This function initiates a data channel connection toward the
445 *                  connected peer device.
446 *                  When the data channel is open successfully, a
447 *                  MCA_OPEN_CFM_EVT is reported. This data channel is
448 *                  identified as tMCA_DL.
449 *
450 * Returns          MCA_SUCCESS if successful, otherwise error.
451 *
452 ******************************************************************************/
453extern tMCA_RESULT MCA_DataChnlCfg(tMCA_CL mcl,
454                                   const tMCA_CHNL_CFG* p_chnl_cfg);
455
456/*******************************************************************************
457 *
458 * Function         MCA_Abort
459 *
460 * Description      This function sends a ABORT_MDL request to the peer device.
461 *                  When the response is received, a MCA_ABORT_CFM_EVT is
462 *                  reported.
463 *
464 * Returns          MCA_SUCCESS if successful, otherwise error.
465 *
466 ******************************************************************************/
467extern tMCA_RESULT MCA_Abort(tMCA_CL mcl);
468
469/*******************************************************************************
470 *
471 * Function         MCA_Delete
472 *
473 * Description      This function sends a DELETE_MDL request to the peer device.
474 *                  When the response is received, a MCA_DELETE_CFM_EVT is
475 *                  reported.
476 *
477 * Returns          MCA_SUCCESS if successful, otherwise error.
478 *
479 ******************************************************************************/
480extern tMCA_RESULT MCA_Delete(tMCA_CL mcl, uint16_t mdl_id);
481
482/*******************************************************************************
483 *
484 * Function         MCA_WriteReq
485 *
486 * Description      Send a data packet to the peer device.
487 *
488 *                  The application passes the packet using the BT_HDR
489 *                  structure. The offset field must be equal to or greater than
490 *                  L2CAP_MIN_OFFSET. This allows enough space in the buffer for
491 *                  the L2CAP header.
492 *
493 *                  The memory pointed to by p_pkt must be a GKI buffer
494 *                  allocated by the application.  This buffer will be freed
495 *                  by the protocol stack; the application must not free
496 *                  this buffer.
497 *
498 * Returns          MCA_SUCCESS if successful, otherwise error.
499 *
500 ******************************************************************************/
501extern tMCA_RESULT MCA_WriteReq(tMCA_DL mdl, BT_HDR* p_pkt);
502
503/*******************************************************************************
504 *
505 * Function         MCA_GetL2CapChannel
506 *
507 * Description      Get the L2CAP CID used by the given data channel handle.
508 *
509 * Returns          L2CAP channel ID if successful, otherwise 0.
510 *
511 ******************************************************************************/
512extern uint16_t MCA_GetL2CapChannel(tMCA_DL mdl);
513
514/**
515 * The following definitions are for test interface only, they mirror function
516 * definitions above. This struct allows an external application to load and
517 * call these methods without linking against the core library.
518 */
519typedef struct {
520  size_t size;
521  void (*init)(void);
522  tMCA_HANDLE (*register_application)(tMCA_REG* p_reg,
523                                      tMCA_CTRL_CBACK* p_cback);
524  void (*deregister_application)(tMCA_HANDLE handle);
525  tMCA_RESULT (*create_mdep)(tMCA_HANDLE handle, tMCA_DEP* p_dep,
526                             tMCA_CS* p_cs);
527  tMCA_RESULT (*delete_mdep)(tMCA_HANDLE handle, tMCA_DEP dep);
528  tMCA_RESULT (*connect_mcl)(tMCA_HANDLE handle, BD_ADDR bd_addr,
529                             uint16_t ctrl_psm, uint16_t sec_mask);
530  tMCA_RESULT (*disconnect_mcl)(tMCA_CL mcl);
531  tMCA_RESULT (*create_mdl_request)(tMCA_CL mcl, tMCA_DEP dep,
532                                    uint16_t data_psm, uint16_t mdl_id,
533                                    uint8_t peer_dep_id, uint8_t cfg,
534                                    const tMCA_CHNL_CFG* p_chnl_cfg);
535  tMCA_RESULT (*create_mdl_response)(tMCA_CL mcl, tMCA_DEP dep, uint16_t mdl_id,
536                                     uint8_t cfg, uint8_t rsp_code,
537                                     const tMCA_CHNL_CFG* p_chnl_cfg);
538  tMCA_RESULT (*close_mdl_request)(tMCA_DL mdl);
539  tMCA_RESULT (*reconnect_mdl_request)(tMCA_CL mcl, tMCA_DEP dep,
540                                       uint16_t data_psm, uint16_t mdl_id,
541                                       const tMCA_CHNL_CFG* p_chnl_cfg);
542  tMCA_RESULT (*reconnect_mdl_response)(tMCA_CL mcl, tMCA_DEP dep,
543                                        uint16_t mdl_id, uint8_t rsp_code,
544                                        const tMCA_CHNL_CFG* p_chnl_cfg);
545  tMCA_RESULT (*data_channel_config)(tMCA_CL mcl,
546                                     const tMCA_CHNL_CFG* p_chnl_cfg);
547  tMCA_RESULT (*abort_mdl)(tMCA_CL mcl);
548  tMCA_RESULT (*delete_mdl)(tMCA_CL mcl, uint16_t mdl_id);
549  tMCA_RESULT (*write_mdl)(tMCA_DL mdl, BT_HDR* p_pkt);
550  uint16_t (*get_l2cap_channel)(tMCA_DL mdl);
551} btmcap_test_interface_t;
552
553#endif /* MCA_API_H */
554