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 file contains the GATT client main functions and state machine.
22 *
23 ******************************************************************************/
24
25#include "bt_target.h"
26
27#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
28
29#include <string.h>
30
31#include "bta_gattc_int.h"
32#include "gki.h"
33
34
35/*****************************************************************************
36** Constants and types
37*****************************************************************************/
38
39
40/* state machine action enumeration list */
41enum
42{
43    BTA_GATTC_OPEN,
44    BTA_GATTC_OPEN_FAIL,
45    BTA_GATTC_OPEN_ERROR,
46    BTA_GATTC_CANCEL_OPEN,
47    BTA_GATTC_CANCEL_OPEN_OK,
48    BTA_GATTC_CANCEL_OPEN_ERROR,
49    BTA_GATTC_CONN,
50    BTA_GATTC_START_DISCOVER,
51    BTA_GATTC_DISC_CMPL,
52
53    BTA_GATTC_Q_CMD,
54    BTA_GATTC_CLOSE,
55    BTA_GATTC_CLOSE_FAIL,
56    BTA_GATTC_READ,
57    BTA_GATTC_WRITE,
58
59    BTA_GATTC_OP_CMPL,
60    BTA_GATTC_SEARCH,
61    BTA_GATTC_FAIL,
62    BTA_GATTC_CONFIRM,
63    BTA_GATTC_EXEC,
64    BTA_GATTC_READ_MULTI,
65    BTA_GATTC_CI_OPEN,
66    BTA_GATTC_CI_LOAD,
67    BTA_GATTC_CI_SAVE,
68    BTA_GATTC_CACHE_OPEN,
69    BTA_GATTC_IGNORE_OP_CMPL,
70    BTA_GATTC_DISC_CLOSE,
71    BTA_GATTC_RESTART_DISCOVER,
72
73    BTA_GATTC_IGNORE
74};
75/* type for action functions */
76typedef void (*tBTA_GATTC_ACTION)(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
77
78/* action function list */
79const tBTA_GATTC_ACTION bta_gattc_action[] =
80{
81    bta_gattc_open,
82    bta_gattc_open_fail,
83    bta_gattc_open_error,
84    bta_gattc_cancel_open,
85    bta_gattc_cancel_open_ok,
86    bta_gattc_cancel_open_error,
87    bta_gattc_conn,
88    bta_gattc_start_discover,
89    bta_gattc_disc_cmpl,
90
91    bta_gattc_q_cmd,
92    bta_gattc_close,
93    bta_gattc_close_fail,
94    bta_gattc_read,
95    bta_gattc_write,
96
97    bta_gattc_op_cmpl,
98    bta_gattc_search,
99    bta_gattc_fail,
100    bta_gattc_confirm,
101    bta_gattc_execute,
102    bta_gattc_read_multi,
103    bta_gattc_ci_open,
104    bta_gattc_ci_load,
105    bta_gattc_ci_save,
106    bta_gattc_cache_open,
107    bta_gattc_ignore_op_cmpl,
108    bta_gattc_disc_close,
109    bta_gattc_restart_discover
110};
111
112
113/* state table information */
114#define BTA_GATTC_ACTIONS           1       /* number of actions */
115#define BTA_GATTC_NEXT_STATE          1       /* position of next state */
116#define BTA_GATTC_NUM_COLS            2       /* number of columns in state tables */
117
118/* state table for idle state */
119static const UINT8 bta_gattc_st_idle[][BTA_GATTC_NUM_COLS] =
120{
121/* Event                            Action 1                  Next state */
122/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,              BTA_GATTC_W4_CONN_ST},
123/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
124/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
125/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
126
127/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
128/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
129/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
130
131/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CLOSE_FAIL,        BTA_GATTC_IDLE_ST},
132
133/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
134/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
135/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
136/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
137
138/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,              BTA_GATTC_CONN_ST},
139/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
140/* BTA_GATTC_DISCOVER_CMPL_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
141/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
142/* BTA_GATTC_INT_DISCONN_EVT       */    {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
143
144
145/* ===> for cache loading, saving   */
146/* BTA_GATTC_START_CACHE_EVT        */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
147/* BTA_GATTC_CI_CACHE_OPEN_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
148/* BTA_GATTC_CI_CACHE_LOAD_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
149/* BTA_GATTC_CI_CACHE_SAVE_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST}
150};
151
152/* state table for wait for open state */
153static const UINT8 bta_gattc_st_w4_conn[][BTA_GATTC_NUM_COLS] =
154{
155/* Event                            Action 1                             Next state */
156/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,              BTA_GATTC_W4_CONN_ST},
157/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_OPEN_FAIL,         BTA_GATTC_IDLE_ST},
158/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN,       BTA_GATTC_W4_CONN_ST},
159/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_CANCEL_OPEN_OK,    BTA_GATTC_IDLE_ST},
160
161/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
162/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
163/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
164
165/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CANCEL_OPEN,         BTA_GATTC_W4_CONN_ST},
166
167/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
168/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
169/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
170/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
171
172/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,               BTA_GATTC_CONN_ST},
173/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
174/* BTA_GATTC_DISCOVER_CMPL_EVT       */  {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
175/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
176/* BTA_GATTC_INT_DISCONN_EVT      */     {BTA_GATTC_OPEN_FAIL,          BTA_GATTC_IDLE_ST},
177
178/* ===> for cache loading, saving   */
179/* BTA_GATTC_START_CACHE_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
180/* BTA_GATTC_CI_CACHE_OPEN_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
181/* BTA_GATTC_CI_CACHE_LOAD_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
182/* BTA_GATTC_CI_CACHE_SAVE_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST}
183};
184
185/* state table for open state */
186static const UINT8 bta_gattc_st_connected[][BTA_GATTC_NUM_COLS] =
187{
188/* Event                            Action 1                            Next state */
189/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN_ERROR,         BTA_GATTC_CONN_ST},
190/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
191/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN_ERROR, BTA_GATTC_CONN_ST},
192/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_IGNORE,            BTA_GATTC_CONN_ST},
193
194/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_READ,               BTA_GATTC_CONN_ST},
195/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_WRITE,              BTA_GATTC_CONN_ST},
196/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_EXEC,               BTA_GATTC_CONN_ST},
197
198/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
199
200/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_SEARCH,             BTA_GATTC_CONN_ST},
201/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_CONFIRM,            BTA_GATTC_CONN_ST},
202/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_READ_MULTI,         BTA_GATTC_CONN_ST},
203/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
204
205/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
206/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_START_DISCOVER,     BTA_GATTC_DISCOVER_ST},
207/* BTA_GATTC_DISCOVER_CMPL_EVT       */  {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
208/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_OP_CMPL,            BTA_GATTC_CONN_ST},
209
210/* BTA_GATTC_INT_DISCONN_EVT        */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
211
212/* ===> for cache loading, saving   */
213/* BTA_GATTC_START_CACHE_EVT        */   {BTA_GATTC_CACHE_OPEN,         BTA_GATTC_DISCOVER_ST},
214/* BTA_GATTC_CI_CACHE_OPEN_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
215/* BTA_GATTC_CI_CACHE_LOAD_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
216/* BTA_GATTC_CI_CACHE_SAVE_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST}
217};
218
219/* state table for discover state */
220static const UINT8 bta_gattc_st_discover[][BTA_GATTC_NUM_COLS] =
221{
222/* Event                            Action 1                            Next state */
223/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN_ERROR,         BTA_GATTC_DISCOVER_ST},
224/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_DISCOVER_ST},
225/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN_ERROR,  BTA_GATTC_DISCOVER_ST},
226/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_FAIL,               BTA_GATTC_DISCOVER_ST},
227
228/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
229/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
230/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
231
232/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_DISC_CLOSE,         BTA_GATTC_DISCOVER_ST},
233
234/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
235/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_CONFIRM,            BTA_GATTC_DISCOVER_ST},
236/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
237/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_DISCOVER_ST},
238
239/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,               BTA_GATTC_DISCOVER_ST},
240/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_RESTART_DISCOVER,   BTA_GATTC_DISCOVER_ST},
241/* BTA_GATTC_DISCOVER_CMPL_EVT      */   {BTA_GATTC_DISC_CMPL,          BTA_GATTC_CONN_ST},
242/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE_OP_CMPL,     BTA_GATTC_DISCOVER_ST},
243/* BTA_GATTC_INT_DISCONN_EVT        */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
244
245/* ===> for cache loading, saving       */
246/* BTA_GATTC_START_CACHE_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_DISCOVER_ST},
247/* BTA_GATTC_CI_CACHE_OPEN_EVT      */   {BTA_GATTC_CI_OPEN,            BTA_GATTC_DISCOVER_ST},
248/* BTA_GATTC_CI_CACHE_LOAD_EVT      */   {BTA_GATTC_CI_LOAD,            BTA_GATTC_DISCOVER_ST},
249/* BTA_GATTC_CI_CACHE_SAVE_EVT      */   {BTA_GATTC_CI_SAVE,            BTA_GATTC_DISCOVER_ST}
250};
251
252/* type for state table */
253typedef const UINT8 (*tBTA_GATTC_ST_TBL)[BTA_GATTC_NUM_COLS];
254
255/* state table */
256const tBTA_GATTC_ST_TBL bta_gattc_st_tbl[] =
257{
258    bta_gattc_st_idle,
259    bta_gattc_st_w4_conn,
260    bta_gattc_st_connected,
261    bta_gattc_st_discover
262};
263
264/*****************************************************************************
265** Global data
266*****************************************************************************/
267
268/* GATTC control block */
269#if BTA_DYNAMIC_MEMORY == FALSE
270tBTA_GATTC_CB  bta_gattc_cb;
271#endif
272
273#if BTA_GATT_DEBUG == TRUE
274static char *gattc_evt_code(tBTA_GATTC_INT_EVT evt_code);
275static char *gattc_state_code(tBTA_GATTC_STATE state_code);
276#endif
277
278/*******************************************************************************
279**
280** Function         bta_gattc_sm_execute
281**
282** Description      State machine event handling function for GATTC
283**
284**
285** Returns          void
286**
287*******************************************************************************/
288void bta_gattc_sm_execute(tBTA_GATTC_CLCB *p_clcb, UINT16 event, tBTA_GATTC_DATA *p_data)
289{
290    tBTA_GATTC_ST_TBL     state_table;
291    UINT8               action;
292    int                 i;
293#if BTA_GATT_DEBUG == TRUE
294    tBTA_GATTC_STATE in_state = p_clcb->state;
295    UINT16         in_event = event;
296    APPL_TRACE_DEBUG4("bta_gattc_sm_execute: State 0x%02x [%s], Event 0x%x[%s]", in_state,
297                      gattc_state_code(in_state),
298                      in_event,
299                      gattc_evt_code(in_event));
300#endif
301
302
303    /* look up the state table for the current state */
304    state_table = bta_gattc_st_tbl[p_clcb->state];
305
306    event &= 0x00FF;
307
308    /* set next state */
309    p_clcb->state = state_table[event][BTA_GATTC_NEXT_STATE];
310
311    /* execute action functions */
312    for (i = 0; i < BTA_GATTC_ACTIONS; i++)
313    {
314        if ((action = state_table[event][i]) != BTA_GATTC_IGNORE)
315        {
316            (*bta_gattc_action[action])(p_clcb, p_data);
317        }
318        else
319        {
320            break;
321        }
322    }
323
324#if BTA_GATT_DEBUG == TRUE
325    if (in_state != p_clcb->state)
326    {
327        APPL_TRACE_DEBUG3("GATTC State Change: [%s] -> [%s] after Event [%s]",
328                          gattc_state_code(in_state),
329                          gattc_state_code(p_clcb->state),
330                          gattc_evt_code(in_event));
331    }
332#endif
333}
334
335/*******************************************************************************
336**
337** Function         bta_gattc_hdl_event
338**
339** Description      GATT client main event handling function.
340**
341**
342** Returns          void
343**
344*******************************************************************************/
345BOOLEAN bta_gattc_hdl_event(BT_HDR *p_msg)
346{
347    tBTA_GATTC_CB *p_cb = &bta_gattc_cb;
348    tBTA_GATTC_CLCB *p_clcb = NULL;
349    tBTA_GATTC_RCB      *p_clreg;
350#if BTA_GATT_DEBUG == TRUE
351    APPL_TRACE_DEBUG1("bta_gattc_hdl_event: Event [%s]", gattc_evt_code(p_msg->event));
352#endif
353    switch (p_msg->event)
354    {
355        case BTA_GATTC_API_DISABLE_EVT:
356            bta_gattc_disable(p_cb);
357            break;
358
359        case BTA_GATTC_API_REG_EVT:
360            bta_gattc_register(p_cb, (tBTA_GATTC_DATA *) p_msg);
361            break;
362
363        case BTA_GATTC_INT_START_IF_EVT:
364            bta_gattc_start_if(p_cb, (tBTA_GATTC_DATA *) p_msg);
365            break;
366
367        case BTA_GATTC_API_DEREG_EVT:
368            p_clreg = bta_gattc_cl_get_regcb(((tBTA_GATTC_DATA *)p_msg)->api_dereg.client_if);
369            bta_gattc_deregister(p_cb, p_clreg);
370            break;
371
372        case BTA_GATTC_API_OPEN_EVT:
373            bta_gattc_process_api_open(p_cb, (tBTA_GATTC_DATA *) p_msg);
374            break;
375
376        case BTA_GATTC_API_CANCEL_OPEN_EVT:
377            bta_gattc_process_api_open_cancel(p_cb, (tBTA_GATTC_DATA *) p_msg);
378            break;
379
380        case BTA_GATTC_API_REFRESH_EVT:
381            bta_gattc_process_api_refresh(p_cb, (tBTA_GATTC_DATA *) p_msg);
382            break;
383
384#if BLE_INCLUDED == TRUE
385        case BTA_GATTC_API_LISTEN_EVT:
386            bta_gattc_listen(p_cb, (tBTA_GATTC_DATA *) p_msg);
387            break;
388        case BTA_GATTC_API_BROADCAST_EVT:
389            bta_gattc_broadcast(p_cb, (tBTA_GATTC_DATA *) p_msg);
390            break;
391#endif
392
393        case BTA_GATTC_ENC_CMPL_EVT:
394            bta_gattc_process_enc_cmpl(p_cb, (tBTA_GATTC_DATA *) p_msg);
395            break;
396
397        default:
398            if (p_msg->event == BTA_GATTC_INT_CONN_EVT)
399                p_clcb = bta_gattc_find_int_conn_clcb((tBTA_GATTC_DATA *) p_msg);
400            else if (p_msg->event == BTA_GATTC_INT_DISCONN_EVT)
401                p_clcb = bta_gattc_find_int_disconn_clcb((tBTA_GATTC_DATA *) p_msg);
402            else
403                p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->layer_specific);
404
405            if (p_clcb != NULL)
406            {
407                bta_gattc_sm_execute(p_clcb, p_msg->event, (tBTA_GATTC_DATA *) p_msg);
408            }
409            else
410            {
411                APPL_TRACE_DEBUG1("Ignore unknown conn ID: %d", p_msg->layer_specific);
412            }
413
414            break;
415    }
416
417
418    return(TRUE);
419}
420
421
422/*****************************************************************************
423**  Debug Functions
424*****************************************************************************/
425#if BTA_GATT_DEBUG == TRUE
426
427/*******************************************************************************
428**
429** Function         gattc_evt_code
430**
431** Description
432**
433** Returns          void
434**
435*******************************************************************************/
436static char *gattc_evt_code(tBTA_GATTC_INT_EVT evt_code)
437{
438    switch (evt_code)
439    {
440        case BTA_GATTC_API_OPEN_EVT:
441            return "BTA_GATTC_API_OPEN_EVT";
442        case BTA_GATTC_INT_OPEN_FAIL_EVT:
443            return "BTA_GATTC_INT_OPEN_FAIL_EVT";
444        case BTA_GATTC_API_CANCEL_OPEN_EVT:
445            return "BTA_GATTC_API_CANCEL_OPEN_EVT";
446        case BTA_GATTC_INT_CANCEL_OPEN_OK_EVT:
447            return "BTA_GATTC_INT_CANCEL_OPEN_OK_EVT";
448        case BTA_GATTC_API_READ_EVT:
449            return "BTA_GATTC_API_READ_EVT";
450        case BTA_GATTC_API_WRITE_EVT:
451            return "BTA_GATTC_API_WRITE_EVT";
452        case BTA_GATTC_API_EXEC_EVT:
453            return "BTA_GATTC_API_EXEC_EVT";
454        case BTA_GATTC_API_CLOSE_EVT:
455            return "BTA_GATTC_API_CLOSE_EVT";
456        case BTA_GATTC_API_SEARCH_EVT:
457            return "BTA_GATTC_API_SEARCH_EVT";
458        case BTA_GATTC_API_CONFIRM_EVT:
459            return "BTA_GATTC_API_CONFIRM_EVT";
460        case BTA_GATTC_API_READ_MULTI_EVT:
461            return "BTA_GATTC_API_READ_MULTI_EVT";
462        case BTA_GATTC_INT_CONN_EVT:
463            return "BTA_GATTC_INT_CONN_EVT";
464        case BTA_GATTC_INT_DISCOVER_EVT:
465            return "BTA_GATTC_INT_DISCOVER_EVT";
466        case BTA_GATTC_DISCOVER_CMPL_EVT:
467            return "BTA_GATTC_DISCOVER_CMPL_EVT";
468        case BTA_GATTC_OP_CMPL_EVT:
469            return "BTA_GATTC_OP_CMPL_EVT";
470        case BTA_GATTC_INT_DISCONN_EVT:
471            return "BTA_GATTC_INT_DISCONN_EVT";
472        case BTA_GATTC_START_CACHE_EVT:
473            return "BTA_GATTC_START_CACHE_EVT";
474        case BTA_GATTC_CI_CACHE_OPEN_EVT:
475            return "BTA_GATTC_CI_CACHE_OPEN_EVT";
476        case BTA_GATTC_CI_CACHE_LOAD_EVT:
477            return "BTA_GATTC_CI_CACHE_LOAD_EVT";
478        case BTA_GATTC_CI_CACHE_SAVE_EVT:
479            return "BTA_GATTC_CI_CACHE_SAVE_EVT";
480        case BTA_GATTC_INT_START_IF_EVT:
481            return "BTA_GATTC_INT_START_IF_EVT";
482        case BTA_GATTC_API_REG_EVT:
483            return "BTA_GATTC_API_REG_EVT";
484        case BTA_GATTC_API_DEREG_EVT:
485            return "BTA_GATTC_API_DEREG_EVT";
486        case BTA_GATTC_API_REFRESH_EVT:
487            return "BTA_GATTC_API_REFRESH_EVT";
488        case BTA_GATTC_API_LISTEN_EVT:
489            return "BTA_GATTC_API_LISTEN_EVT";
490        case BTA_GATTC_API_DISABLE_EVT:
491            return "BTA_GATTC_API_DISABLE_EVT";
492        default:
493            return "unknown GATTC event code";
494    }
495}
496
497/*******************************************************************************
498**
499** Function         gattc_state_code
500**
501** Description
502**
503** Returns          void
504**
505*******************************************************************************/
506static char *gattc_state_code(tBTA_GATTC_STATE state_code)
507{
508    switch (state_code)
509    {
510        case BTA_GATTC_IDLE_ST:
511            return "GATTC_IDLE_ST";
512        case BTA_GATTC_W4_CONN_ST:
513            return "GATTC_W4_CONN_ST";
514        case BTA_GATTC_CONN_ST:
515            return "GATTC_CONN_ST";
516        case BTA_GATTC_DISCOVER_ST:
517            return "GATTC_DISCOVER_ST";
518        default:
519            return "unknown GATTC state code";
520    }
521}
522
523#endif  /* Debug Functions */
524#endif /* BTA_GATT_INCLUDED */
525