1 /******************************************************************************
2  *
3  *  Copyright (C) 1999-2012 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 #ifndef GATT_API_H
19 #define GATT_API_H
20 
21 #include "common/bt_target.h"
22 #include "stack/gattdefs.h"
23 #include "stack/btm_ble_api.h"
24 
25 /*****************************************************************************
26 **  Constants
27 *****************************************************************************/
28 /* Success code and error codes */
29 #define  GATT_SUCCESS                        0x00
30 #define  GATT_INVALID_HANDLE                 0x01
31 #define  GATT_READ_NOT_PERMIT                0x02
32 #define  GATT_WRITE_NOT_PERMIT               0x03
33 #define  GATT_INVALID_PDU                    0x04
34 #define  GATT_INSUF_AUTHENTICATION           0x05
35 #define  GATT_REQ_NOT_SUPPORTED              0x06
36 #define  GATT_INVALID_OFFSET                 0x07
37 #define  GATT_INSUF_AUTHORIZATION            0x08
38 #define  GATT_PREPARE_Q_FULL                 0x09
39 #define  GATT_NOT_FOUND                      0x0a
40 #define  GATT_NOT_LONG                       0x0b
41 #define  GATT_INSUF_KEY_SIZE                 0x0c
42 #define  GATT_INVALID_ATTR_LEN               0x0d
43 #define  GATT_ERR_UNLIKELY                   0x0e
44 #define  GATT_INSUF_ENCRYPTION               0x0f
45 #define  GATT_UNSUPPORT_GRP_TYPE             0x10
46 #define  GATT_INSUF_RESOURCE                 0x11
47 #define  GATT_DATABASE_OUT_OF_SYNC           0x12
48 #define  GATT_VALUE_NOT_ALLOWED              0x13
49 
50 
51 #define  GATT_NO_RESOURCES                   0x80
52 #define  GATT_INTERNAL_ERROR                 0x81
53 #define  GATT_WRONG_STATE                    0x82
54 #define  GATT_DB_FULL                        0x83
55 #define  GATT_BUSY                           0x84
56 #define  GATT_ERROR                          0x85
57 #define  GATT_CMD_STARTED                    0x86
58 #define  GATT_ILLEGAL_PARAMETER              0x87
59 #define  GATT_PENDING                        0x88
60 #define  GATT_AUTH_FAIL                      0x89
61 #define  GATT_MORE                           0x8a
62 #define  GATT_INVALID_CFG                    0x8b
63 #define  GATT_SERVICE_STARTED                0x8c
64 #define  GATT_ENCRYPED_MITM                  GATT_SUCCESS
65 #define  GATT_ENCRYPED_NO_MITM               0x8d
66 #define  GATT_NOT_ENCRYPTED                  0x8e
67 #define  GATT_CONGESTED                      0x8f
68 
69 #define  GATT_DUP_REG                        0x90
70 #define  GATT_ALREADY_OPEN                   0x91
71 #define  GATT_CANCEL                         0x92
72 
73 /* 0xE0 ~ 0xFC reserved for future use */
74 #define  GATT_STACK_RSP                      0xE0
75 #define  GATT_APP_RSP                        0xE1
76 //Error caused by customer application or stack bug
77 #define  GATT_UNKNOWN_ERROR                  0XEF
78 
79 #define  GATT_CCC_CFG_ERR                    0xFD /* Client Characteristic Configuration Descriptor Improperly Configured */
80 #define  GATT_PRC_IN_PROGRESS                0xFE /* Procedure Already in progress */
81 #define  GATT_OUT_OF_RANGE                   0xFF /* Attribute value out of range */
82 
83 typedef UINT8 tGATT_STATUS;
84 
85 
86 #define  GATT_RSP_ERROR                      0x01
87 #define  GATT_REQ_MTU                        0x02
88 #define  GATT_RSP_MTU                        0x03
89 #define  GATT_REQ_FIND_INFO                  0x04
90 #define  GATT_RSP_FIND_INFO                  0x05
91 #define  GATT_REQ_FIND_TYPE_VALUE            0x06
92 #define  GATT_RSP_FIND_TYPE_VALUE            0x07
93 #define  GATT_REQ_READ_BY_TYPE               0x08
94 #define  GATT_RSP_READ_BY_TYPE               0x09
95 #define  GATT_REQ_READ                       0x0A
96 #define  GATT_RSP_READ                       0x0B
97 #define  GATT_REQ_READ_BLOB                  0x0C
98 #define  GATT_RSP_READ_BLOB                  0x0D
99 #define  GATT_REQ_READ_MULTI                 0x0E
100 #define  GATT_RSP_READ_MULTI                 0x0F
101 #define  GATT_REQ_READ_BY_GRP_TYPE           0x10
102 #define  GATT_RSP_READ_BY_GRP_TYPE           0x11
103 #define  GATT_REQ_WRITE                      0x12 /*                 0001-0010 (write)*/
104 #define  GATT_RSP_WRITE                      0x13
105 #define  GATT_CMD_WRITE                      0x52 /* changed in V4.0 01001-0010(write cmd)*/
106 #define  GATT_REQ_PREPARE_WRITE              0x16
107 #define  GATT_RSP_PREPARE_WRITE              0x17
108 #define  GATT_REQ_EXEC_WRITE                 0x18
109 #define  GATT_RSP_EXEC_WRITE                 0x19
110 #define  GATT_HANDLE_VALUE_NOTIF             0x1B
111 #define  GATT_HANDLE_VALUE_IND               0x1D
112 #define  GATT_HANDLE_VALUE_CONF              0x1E
113 #define  GATT_REQ_READ_MULTI_VAR             0x20
114 #define  GATT_RSP_READ_MULTI_VAR             0x21
115 #define  GATT_HANDLE_MULTI_VALUE_NOTIF       0x23
116 #define  GATT_SIGN_CMD_WRITE                 0xD2 /* changed in V4.0 1101-0010 (signed write)  see write cmd above*/
117 #define  GATT_OP_CODE_MAX                    GATT_HANDLE_MULTI_VALUE_NOTIF + 1 /* 0x1E = 30 + 1 = 31*/
118 
119 #define  GATT_COMMAND_FLAG                   0x40 /* Command Flag: set to one means command */
120 
121 #define  GATT_HANDLE_IS_VALID(x) ((x) != 0)
122 
123 #define GATT_CONN_UNKNOWN                   0
124 #define GATT_CONN_L2C_FAILURE               1                               /* general L2cap failure  */
125 #define GATT_CONN_TIMEOUT                   HCI_ERR_CONNECTION_TOUT         /* 0x08 connection timeout  */
126 #define GATT_CONN_TERMINATE_PEER_USER       HCI_ERR_PEER_USER               /* 0x13 connection terminate by peer user  */
127 #define GATT_CONN_TERMINATE_LOCAL_HOST      HCI_ERR_CONN_CAUSE_LOCAL_HOST   /* 0x16 connectionterminated by local host  */
128 #define GATT_CONN_FAIL_ESTABLISH            HCI_ERR_CONN_FAILED_ESTABLISHMENT/* 0x03E connection fail to establish  */
129 #define GATT_CONN_LMP_TIMEOUT               HCI_ERR_LMP_RESPONSE_TIMEOUT     /* 0x22 connection fail for LMP response tout */
130 #define GATT_CONN_CANCEL                    L2CAP_CONN_CANCEL                /* 0x0100 L2CAP connection cancelled  */
131 typedef UINT16 tGATT_DISCONN_REASON;
132 
133 /* MAX GATT MTU size
134 */
135 #ifndef GATT_MAX_MTU_SIZE
136 #define GATT_MAX_MTU_SIZE                   517
137 #endif
138 
139 /* max length of an attribute value
140 */
141 #ifndef GATT_MAX_ATTR_LEN
142 #define GATT_MAX_ATTR_LEN                   600
143 #endif
144 
145 /* default GATT MTU size over LE link
146 */
147 #define GATT_DEF_BLE_MTU_SIZE               23
148 
149 /* invalid connection ID
150 */
151 #define GATT_INVALID_CONN_ID                0xFFFF
152 
153 #ifndef GATT_CL_MAX_LCB
154 #define GATT_CL_MAX_LCB                     12 // 22
155 #endif
156 
157 #ifndef GATT_MAX_SCCB
158 #define GATT_MAX_SCCB                       10
159 #endif
160 
161 
162 /* GATT notification caching timer, default to be three seconds
163 */
164 #ifndef GATTC_NOTIF_TIMEOUT
165 #define GATTC_NOTIF_TIMEOUT                 3
166 #endif
167 
168 /*****************************************************************************
169 ** GATT Structure Definition
170 *****************************************************************************/
171 
172 /* Attribute permissions
173 */
174 #define GATT_PERM_READ                      (1 << 0) /* bit 0 */
175 #define GATT_PERM_READ_ENCRYPTED            (1 << 1) /* bit 1 */
176 #define GATT_PERM_READ_ENC_MITM             (1 << 2) /* bit 2 */
177 #define GATT_PERM_WRITE                     (1 << 4) /* bit 4 */
178 #define GATT_PERM_WRITE_ENCRYPTED           (1 << 5) /* bit 5 */
179 #define GATT_PERM_WRITE_ENC_MITM            (1 << 6) /* bit 6 */
180 #define GATT_PERM_WRITE_SIGNED              (1 << 7) /* bit 7 */
181 #define GATT_PERM_WRITE_SIGNED_MITM         (1 << 8) /* bit 8 */
182 #define GATT_PERM_READ_AUTHORIZATION        (1 << 9) /* bit 9 */
183 #define GATT_PERM_WRITE_AUTHORIZATION       (1 << 10)/* bit 10 */
184 typedef UINT16 tGATT_PERM;
185 
186 #define GATT_ENCRYPT_KEY_SIZE_MASK  (0xF000) /* the MS nibble of tGATT_PERM; key size 7=0; size 16=9 */
187 
188 #define GATT_READ_ALLOWED                   (GATT_PERM_READ | GATT_PERM_READ_ENCRYPTED | GATT_PERM_READ_ENC_MITM | GATT_PERM_READ_AUTHORIZATION)
189 #define GATT_READ_AUTH_REQUIRED             (GATT_PERM_READ_ENCRYPTED)
190 #define GATT_READ_MITM_REQUIRED             (GATT_PERM_READ_ENC_MITM)
191 #define GATT_READ_ENCRYPTED_REQUIRED        (GATT_PERM_READ_ENCRYPTED | GATT_PERM_READ_ENC_MITM)
192 #define GATT_READ_AUTHORIZATION             (GATT_PERM_READ_AUTHORIZATION)
193 
194 
195 #define GATT_WRITE_ALLOWED          (GATT_PERM_WRITE | GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_ENC_MITM | \
196                                      GATT_PERM_WRITE_SIGNED | GATT_PERM_WRITE_SIGNED_MITM | GATT_PERM_WRITE_AUTHORIZATION)
197 
198 #define GATT_WRITE_AUTH_REQUIRED    (GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_SIGNED)
199 
200 #define GATT_WRITE_MITM_REQUIRED    (GATT_PERM_WRITE_ENC_MITM | GATT_PERM_WRITE_SIGNED_MITM)
201 
202 #define GATT_WRITE_ENCRYPTED_PERM   (GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_ENC_MITM)
203 
204 #define GATT_WRITE_SIGNED_PERM      (GATT_PERM_WRITE_SIGNED | GATT_PERM_WRITE_SIGNED_MITM)
205 
206 #define GATT_WRITE_AUTHORIZATION    (GATT_PERM_WRITE_AUTHORIZATION)
207 
208 
209 /* Characteristic properties
210 */
211 #define GATT_CHAR_PROP_BIT_BROADCAST    (1 << 0)
212 #define GATT_CHAR_PROP_BIT_READ         (1 << 1)
213 #define GATT_CHAR_PROP_BIT_WRITE_NR     (1 << 2)
214 #define GATT_CHAR_PROP_BIT_WRITE        (1 << 3)
215 #define GATT_CHAR_PROP_BIT_NOTIFY       (1 << 4)
216 #define GATT_CHAR_PROP_BIT_INDICATE     (1 << 5)
217 #define GATT_CHAR_PROP_BIT_AUTH         (1 << 6)
218 #define GATT_CHAR_PROP_BIT_EXT_PROP     (1 << 7)
219 typedef UINT8 tGATT_CHAR_PROP;
220 
221 
222 /* Format of the value of a characteristic. enumeration type
223 */
224 enum {
225     GATT_FORMAT_RES,            /* rfu */
226     GATT_FORMAT_BOOL,           /* 0x01 boolean */
227     GATT_FORMAT_2BITS,           /* 0x02 2 bit */
228     GATT_FORMAT_NIBBLE,         /* 0x03 nibble */
229     GATT_FORMAT_UINT8,          /* 0x04 uint8 */
230     GATT_FORMAT_UINT12,         /* 0x05 uint12 */
231     GATT_FORMAT_UINT16,         /* 0x06 uint16 */
232     GATT_FORMAT_UINT24,         /* 0x07 uint24 */
233     GATT_FORMAT_UINT32,         /* 0x08 uint32 */
234     GATT_FORMAT_UINT48,         /* 0x09 uint48 */
235     GATT_FORMAT_UINT64,         /* 0x0a uint64 */
236     GATT_FORMAT_UINT128,        /* 0x0B uint128 */
237     GATT_FORMAT_SINT8,          /* 0x0C signed 8 bit integer */
238     GATT_FORMAT_SINT12,         /* 0x0D signed 12 bit integer */
239     GATT_FORMAT_SINT16,         /* 0x0E signed 16 bit integer */
240     GATT_FORMAT_SINT24,         /* 0x0F signed 24 bit integer */
241     GATT_FORMAT_SINT32,         /* 0x10 signed 32 bit integer */
242     GATT_FORMAT_SINT48,         /* 0x11 signed 48 bit integer */
243     GATT_FORMAT_SINT64,         /* 0x12 signed 64 bit integer */
244     GATT_FORMAT_SINT128,        /* 0x13 signed 128 bit integer */
245     GATT_FORMAT_FLOAT32,        /* 0x14 float 32 */
246     GATT_FORMAT_FLOAT64,        /* 0x15 float 64*/
247     GATT_FORMAT_SFLOAT,         /* 0x16 IEEE-11073 16 bit SFLOAT */
248     GATT_FORMAT_FLOAT,          /* 0x17 IEEE-11073 32 bit SFLOAT */
249     GATT_FORMAT_DUINT16,        /* 0x18 IEEE-20601 format */
250     GATT_FORMAT_UTF8S,          /* 0x19 UTF-8 string */
251     GATT_FORMAT_UTF16S,         /* 0x1a UTF-16 string */
252     GATT_FORMAT_STRUCT,         /* 0x1b Opaque structure*/
253     GATT_FORMAT_MAX             /* 0x1c or above reserved */
254 };
255 typedef UINT8 tGATT_FORMAT;
256 
257 /* Characteristic Presentation Format Descriptor value
258 */
259 typedef struct {
260     UINT16              unit;        /* as UUID defined by SIG */
261     UINT16              descr;       /* as UUID as defined by SIG */
262     tGATT_FORMAT        format;
263     INT8                exp;
264     UINT8               name_spc;   /* The name space of the description */
265 } tGATT_CHAR_PRES;
266 
267 /* Characteristic Report reference Descriptor format
268 */
269 typedef struct {
270     UINT8              rpt_id;       /* report ID */
271     UINT8              rpt_type;       /* report type */
272 } tGATT_CHAR_RPT_REF;
273 
274 
275 #define GATT_VALID_RANGE_MAX_SIZE       16
276 typedef struct {
277     UINT8                   format;
278     UINT16                  len;
279     UINT8                   lower_range[GATT_VALID_RANGE_MAX_SIZE]; /* in little endian format */
280     UINT8                   upper_range[GATT_VALID_RANGE_MAX_SIZE];
281 } tGATT_VALID_RANGE;
282 
283 /* Characteristic Aggregate Format attribute value
284 */
285 #define GATT_AGGR_HANDLE_NUM_MAX        10
286 typedef struct {
287     UINT8                   num_handle;
288     UINT16                  handle_list[GATT_AGGR_HANDLE_NUM_MAX];
289 } tGATT_CHAR_AGGRE;
290 
291 /* Characteristic descriptor: Extended Properties value
292 */
293 #define GATT_CHAR_BIT_REL_WRITE    0x0001       /* permits reliable writes of the Characteristic Value */
294 #define GATT_CHAR_BIT_WRITE_AUX    0x0002       /* permits writes to the characteristic descriptor */
295 
296 
297 /* characteristic descriptor: client configuration value
298 */
299 #define GATT_CLT_CONFIG_NONE               0x0000
300 #define GATT_CLT_CONFIG_NOTIFICATION       0x0001
301 #define GATT_CLT_CONFIG_INDICATION         0x0002
302 typedef UINT16 tGATT_CLT_CHAR_CONFIG;
303 
304 
305 /* characteristic descriptor: server configuration value
306 */
307 #define GATT_SVR_CONFIG_NONE                     0x0000
308 #define GATT_SVR_CONFIG_BROADCAST                0x0001
309 typedef UINT16 tGATT_SVR_CHAR_CONFIG;
310 
311 /* Characteristic descriptor: Extended Properties value
312 */
313 #define GATT_CHAR_BIT_REL_WRITE    0x0001       /* permits reliable writes of the Characteristic Value */
314 #define GATT_CHAR_BIT_WRITE_AUX    0x0002       /* permits writes to the characteristic descriptor */
315 
316 /* authentication requirement
317 */
318 #define GATT_AUTH_REQ_NONE              0
319 #define GATT_AUTH_REQ_NO_MITM           1   /* unauthenticated encryption */
320 #define GATT_AUTH_REQ_MITM              2   /* authenticated encryption */
321 #define GATT_AUTH_REQ_SIGNED_NO_MITM    3
322 #define GATT_AUTH_REQ_SIGNED_MITM       4
323 typedef UINT8 tGATT_AUTH_REQ;
324 
325 /* Attribute Value structure
326 */
327 typedef struct {
328     UINT16          conn_id;
329     UINT16          handle;     /* attribute handle */
330     UINT16          offset;     /* attribute value offset, if no offset is needed for the command, ignore it */
331     UINT16          len;        /* length of attribute value */
332     tGATT_AUTH_REQ  auth_req;   /*  authentication request */
333     UINT8           value[GATT_MAX_ATTR_LEN];  /* the actual attribute value */
334 } tGATT_VALUE;
335 
336 typedef struct{
337     UINT16  attr_max_len;
338     UINT16  attr_len;
339     UINT8   *attr_val;
340 }tGATT_ATTR_VAL;
341 
342 typedef struct{
343     uint8_t auto_rsp;
344 }tGATTS_ATTR_CONTROL;
345 
346 /* Mask for gatt server attribute */
347 #define GATT_ATTR_VALUE_ALLOCATED  0x01
348 typedef UINT8 tGATT_ATTR_MASK;
349 
350 /* Union of the event data which is used in the server respond API to carry the server response information
351 */
352 typedef union {
353     /* data type            member          event   */
354     tGATT_VALUE             attr_value;     /* READ, HANDLE_VALUE_IND, PREPARE_WRITE */
355     /* READ_BLOB, READ_BY_TYPE */
356     UINT16                  handle;         /* WRITE, WRITE_BLOB */
357 
358 } tGATTS_RSP;
359 
360 /* Transports for the primary service  */
361 #define GATT_TRANSPORT_LE           BT_TRANSPORT_LE
362 #define GATT_TRANSPORT_BR_EDR       BT_TRANSPORT_BR_EDR
363 #define GATT_TRANSPORT_LE_BR_EDR    (BT_TRANSPORT_LE|BT_TRANSPORT_BR_EDR)
364 typedef UINT8 tGATT_TRANSPORT;
365 
366 #define GATT_PREP_WRITE_CANCEL   0x00
367 #define GATT_PREP_WRITE_EXEC     0x01
368 typedef UINT8   tGATT_EXEC_FLAG;
369 
370 /* read request always based on UUID */
371 typedef struct {
372     UINT16        handle;
373     UINT16        offset;
374     BOOLEAN       is_long;
375     BOOLEAN       need_rsp;
376 } tGATT_READ_REQ;
377 
378 /* write request data */
379 typedef struct {
380     UINT16          handle;     /* attribute handle */
381     UINT16          offset;     /* attribute value offset, if no offset is needed for the command, ignore it */
382     UINT16          len;        /* length of attribute value */
383     UINT8           value[GATT_MAX_ATTR_LEN];  /* the actual attribute value */
384     BOOLEAN         need_rsp;   /* need write response */
385     BOOLEAN         is_prep;    /* is prepare write */
386 } tGATT_WRITE_REQ;
387 
388 /* callback data for server access request from client */
389 typedef union {
390     tGATT_READ_REQ         read_req;       /* read request, read by Type, read blob */
391 
392     tGATT_WRITE_REQ        write_req;    /* write */
393     /* prepare write */
394     /* write blob */
395     UINT16                 handle;       /* handle value confirmation */
396     UINT16                 mtu;          /* MTU exchange request */
397     tGATT_EXEC_FLAG        exec_write;    /* execute write */
398 } tGATTS_DATA;
399 
400 typedef UINT8 tGATT_SERV_IF;               /* GATT Service Interface */
401 
402 enum {
403     GATTS_REQ_TYPE_READ = 1,        /* Attribute read request */
404     GATTS_REQ_TYPE_WRITE,           /* Attribute write request */
405     GATTS_REQ_TYPE_WRITE_EXEC,      /* Execute write */
406     GATTS_REQ_TYPE_MTU,             /* MTU exchange information */
407     GATTS_REQ_TYPE_CONF             /* handle value confirmation */
408 };
409 typedef UINT8   tGATTS_REQ_TYPE;
410 
411 
412 
413 /* Client Used Data Structure
414 */
415 /* definition of different discovery types */
416 enum {
417     GATT_DISC_SRVC_ALL = 1,     /* discover all services */
418     GATT_DISC_SRVC_BY_UUID,     /* discover service of a special type */
419     GATT_DISC_INC_SRVC,         /* discover the included service within a service */
420     GATT_DISC_CHAR,             /* discover characteristics of a service with/without type requirement */
421     GATT_DISC_CHAR_BY_UUID,     /* discover characteristic with type requirement */
422     GATT_DISC_CHAR_DSCPT,       /* discover characteristic descriptors of a character */
423     GATT_DISC_MAX               /* maximnun discover type */
424 };
425 typedef UINT8   tGATT_DISC_TYPE;
426 
427 /* Discover parameters of different discovery types
428 */
429 typedef struct {
430     tBT_UUID    service;
431     UINT16      s_handle;
432     UINT16      e_handle;
433 } tGATT_DISC_PARAM;
434 
435 /* GATT read type enumeration
436 */
437 enum {
438     GATT_READ_BY_TYPE =        1,
439     GATT_READ_BY_HANDLE,
440     GATT_READ_MULTIPLE,
441     GATT_READ_MULTIPLE_VAR,
442     GATT_READ_CHAR_VALUE,
443     GATT_READ_PARTIAL,
444     GATT_READ_MAX
445 };
446 typedef UINT8 tGATT_READ_TYPE;
447 
448 /* Read By Type Request (GATT_READ_BY_TYPE) Data
449 */
450 typedef struct {
451     tGATT_AUTH_REQ      auth_req;
452     UINT16              s_handle;
453     UINT16              e_handle;
454     tBT_UUID            uuid;
455 } tGATT_READ_BY_TYPE;
456 
457 /*   GATT_READ_MULTIPLE request data
458 */
459 #define GATT_MAX_READ_MULTI_HANDLES      10           /* Max attributes to read in one request */
460 typedef struct {
461     tGATT_AUTH_REQ          auth_req;
462     UINT16                  num_handles;                            /* number of handles to read */
463     UINT16                  handles[GATT_MAX_READ_MULTI_HANDLES];   /* handles list to be read */
464 } tGATT_READ_MULTI;
465 
466 /*   Read By Handle Request (GATT_READ_BY_HANDLE) data */
467 typedef struct {
468     tGATT_AUTH_REQ         auth_req;
469     UINT16                 handle;
470 } tGATT_READ_BY_HANDLE;
471 
472 /*   READ_BT_HANDLE_Request data */
473 typedef struct {
474     tGATT_AUTH_REQ         auth_req;
475     UINT16                 handle;
476     UINT16                 offset;
477 } tGATT_READ_PARTIAL;
478 
479 /* Read Request Data
480 */
481 typedef union {
482     tGATT_READ_BY_TYPE   service;
483     tGATT_READ_BY_TYPE   char_type;        /* characteristic type */
484     tGATT_READ_MULTI     read_multiple;
485     tGATT_READ_BY_HANDLE by_handle;
486     tGATT_READ_PARTIAL   partial;
487 } tGATT_READ_PARAM;
488 
489 /* GATT write type enumeration */
490 enum {
491     GATT_WRITE_NO_RSP = 1,
492     GATT_WRITE ,
493     GATT_WRITE_PREPARE
494 };
495 typedef UINT8 tGATT_WRITE_TYPE;
496 
497 /* Client Operation Complete Callback Data
498 */
499 typedef union {
500     tGATT_VALUE          att_value;
501     UINT16               mtu;
502     UINT16               handle;
503 } tGATT_CL_COMPLETE;
504 
505 /* GATT client operation type, used in client callback function
506 */
507 #define GATTC_OPTYPE_NONE                 0
508 #define GATTC_OPTYPE_DISCOVERY            1
509 #define GATTC_OPTYPE_READ                 2
510 #define GATTC_OPTYPE_WRITE                3
511 #define GATTC_OPTYPE_EXE_WRITE            4
512 #define GATTC_OPTYPE_CONFIG               5
513 #define GATTC_OPTYPE_NOTIFICATION         6
514 #define GATTC_OPTYPE_INDICATION           7
515 typedef UINT8 tGATTC_OPTYPE;
516 
517 /* characteristic declaration
518 */
519 typedef struct {
520     tGATT_CHAR_PROP       char_prop;   /* characteristic properties */
521     UINT16                val_handle;  /* characteristic value attribute handle */
522     tBT_UUID              char_uuid;   /* characteristic UUID type */
523 } tGATT_CHAR_DCLR_VAL;
524 
525 /* primary service group data
526 */
527 typedef struct {
528     UINT16          e_handle;       /* ending handle of the group */
529     tBT_UUID        service_type;   /* group type */
530 } tGATT_GROUP_VALUE;
531 
532 
533 /* included service attribute value
534 */
535 typedef struct {
536     tBT_UUID    service_type;       /* included service UUID */
537     UINT16      s_handle;           /* starting handle */
538     UINT16      e_handle;           /* ending handle */
539 } tGATT_INCL_SRVC;
540 
541 typedef union {
542     tGATT_INCL_SRVC     incl_service;  /* include service value */
543     tGATT_GROUP_VALUE   group_value;   /* Service UUID type.
544                                           This field is used with GATT_DISC_SRVC_ALL
545                                           or GATT_DISC_SRVC_BY_UUID
546                                           type of discovery result callback. */
547 
548     UINT16              handle;        /* When used with GATT_DISC_INC_SRVC type discovery result,
549                                           it is the included service starting handle.*/
550 
551     tGATT_CHAR_DCLR_VAL dclr_value;    /* Characteristic declaration value.
552                                           This field is used with GATT_DISC_CHAR type discovery.*/
553 } tGATT_DISC_VALUE;
554 
555 /* discover result record
556 */
557 typedef struct {
558     tBT_UUID            type;
559     UINT16              handle;
560     tGATT_DISC_VALUE    value;
561 } tGATT_DISC_RES;
562 
563 
564 #define GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP    0 /* start a idle timer for this duration
565                                                  when no application need to use the link */
566 
567 #define GATT_LINK_NO_IDLE_TIMEOUT            0xFFFF
568 
569 #define GATT_INVALID_ACL_HANDLE              0xFFFF
570 /* discover result callback function */
571 typedef void (tGATT_DISC_RES_CB) (UINT16 conn_id, tGATT_DISC_TYPE disc_type,
572                                   tGATT_DISC_RES *p_data);
573 
574 /* discover complete callback function */
575 typedef void (tGATT_DISC_CMPL_CB) (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status);
576 
577 /* Define a callback function for when read/write/disc/config operation is completed. */
578 typedef void (tGATT_CMPL_CBACK) (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
579                                  tGATT_CL_COMPLETE *p_data);
580 
581 /* Define a callback function when an initialized connection is established. */
582 typedef void (tGATT_CONN_CBACK) (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
583                                  tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport);
584 
585 /* attribute request callback for ATT server */
586 typedef void  (tGATT_REQ_CBACK )(UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type,
587                                  tGATTS_DATA *p_data);
588 
589 /* channel congestion/uncongestion callback */
590 typedef void (tGATT_CONGESTION_CBACK )(UINT16 conn_id, BOOLEAN congested);
591 
592 /* Define a callback function when encryption is established. */
593 typedef void (tGATT_ENC_CMPL_CB)(tGATT_IF gatt_if, BD_ADDR bda);
594 
595 
596 /* Define the structure that applications use to register with
597 ** GATT. This structure includes callback functions. All functions
598 ** MUST be provided.
599 */
600 typedef struct {
601     tGATT_CONN_CBACK                *p_conn_cb;
602     tGATT_CMPL_CBACK                *p_cmpl_cb;
603     tGATT_DISC_RES_CB               *p_disc_res_cb;
604     tGATT_DISC_CMPL_CB              *p_disc_cmpl_cb;
605     tGATT_REQ_CBACK                 *p_req_cb;
606     tGATT_ENC_CMPL_CB               *p_enc_cmpl_cb;
607     tGATT_CONGESTION_CBACK          *p_congestion_cb;
608 } tGATT_CBACK;
609 
610 /***********************  Start Handle Management Definitions   **********************
611 */
612 
613 
614 typedef struct {
615     tBT_UUID app_uuid128;
616     tBT_UUID svc_uuid;
617     UINT16   svc_inst;
618     UINT16   s_handle;
619     UINT16   e_handle;
620     BOOLEAN  is_primary;      /* primary service or secondary */
621 } tGATTS_HNDL_RANGE;
622 
623 
624 
625 #define GATTS_SRV_CHG_CMD_ADD_CLIENT       1
626 #define GATTS_SRV_CHG_CMD_UPDATE_CLIENT    2
627 #define GATTS_SRV_CHG_CMD_REMOVE_CLIENT    3
628 #define GATTS_SRV_CHG_CMD_READ_NUM_CLENTS  4
629 #define GATTS_SRV_CHG_CMD_READ_CLENT       5
630 typedef UINT8 tGATTS_SRV_CHG_CMD;
631 
632 typedef struct {
633     BD_ADDR         bda;
634     BOOLEAN         srv_changed;
635 } tGATTS_SRV_CHG;
636 
637 
638 typedef union {
639     tGATTS_SRV_CHG  srv_chg;
640     UINT8           client_read_index; /* only used for sequential reading client srv chg info */
641 } tGATTS_SRV_CHG_REQ;
642 
643 typedef union {
644     tGATTS_SRV_CHG srv_chg;
645     UINT8 num_clients;
646 } tGATTS_SRV_CHG_RSP;
647 
648 
649 
650 typedef struct {
651     tGATTS_HNDL_RANGE   *p_new_srv_start;
652 } tGATTS_PENDING_NEW_SRV_START;
653 
654 /* Attribute server handle ranges NV storage callback functions
655 */
656 typedef void  (tGATTS_NV_SAVE_CBACK)(BOOLEAN is_saved, tGATTS_HNDL_RANGE *p_hndl_range);
657 typedef BOOLEAN  (tGATTS_NV_SRV_CHG_CBACK)(tGATTS_SRV_CHG_CMD cmd, tGATTS_SRV_CHG_REQ *p_req,
658         tGATTS_SRV_CHG_RSP *p_rsp);
659 
660 typedef struct {
661     tGATTS_NV_SAVE_CBACK       *p_nv_save_callback;
662     tGATTS_NV_SRV_CHG_CBACK    *p_srv_chg_callback;
663 } tGATT_APPL_INFO;
664 
665 typedef struct {
666     UINT16                  handle;
667     UINT16                  length;
668     UINT8                   *value;
669 } tGATT_HLV;
670 
671 /*
672 ***********************  End Handle Management Definitions   **********************/
673 
674 /*****************************************************************************
675 **  External Function Declarations
676 *****************************************************************************/
677 #ifdef __cplusplus
678 extern "C"
679 {
680 #endif
681 
682 /*******************************************************************************
683 **
684 ** Function         GATT_SetTraceLevel
685 **
686 ** Description      This function sets the trace level.  If called with
687 **                  a value of 0xFF, it simply returns the current trace level.
688 **
689 ** Returns          The new or current trace level
690 **
691 *******************************************************************************/
692 extern UINT8 GATT_SetTraceLevel (UINT8 new_level);
693 
694 
695 /*******************************************************************************/
696 /* GATT Profile API Functions */
697 /*******************************************************************************/
698 /* GATT Profile Server Functions */
699 /*******************************************************************************/
700 /*******************************************************************************
701 **
702 ** Function         GATTS_AddHandleRange
703 **
704 ** Description      This function add the allocated handles range for the specifed
705 **                  application UUID, service UUID and service instance
706 **
707 ** Parameter        p_hndl_range:   pointer to allocated handles information
708 **
709 ** Returns          TRUE if handle range is added successfully; otherwise FALSE.
710 **
711 *******************************************************************************/
712 
713 extern BOOLEAN GATTS_AddHandleRange(tGATTS_HNDL_RANGE *p_hndl_range);
714 
715 /*******************************************************************************
716 **
717 ** Function         GATTS_NVRegister
718 **
719 ** Description      Application manager calls this function to register for
720 **                  NV save callback function.  There can be one and only one
721 **                  NV save callback function.
722 **
723 ** Parameter        p_cb_info : callback informaiton
724 **
725 ** Returns          TRUE if registered OK, else FALSE
726 **
727 *******************************************************************************/
728 extern BOOLEAN  GATTS_NVRegister (const tGATT_APPL_INFO *p_cb_info);
729 
730 
731 /*******************************************************************************
732 **
733 ** Function         GATTS_CreateService
734 **
735 ** Description      This function is called to reserve a block of handles for a service.
736 **
737 **                  *** It should be called only once per service instance  ***
738 **
739 ** Parameter        gatt_if       : application if
740 **                  p_svc_uuid    : service UUID
741 **                  svc_inst      : instance of the service inside the application
742 **                  num_handles   : number of handles needed by the service.
743 **                  is_pri        : is a primary service or not.
744 **
745 ** Returns          service handle if successful, otherwise 0.
746 **
747 *******************************************************************************/
748 extern UINT16 GATTS_CreateService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid,
749                                    UINT16 svc_inst, UINT16 num_handles, BOOLEAN is_pri);
750 
751 
752 /*******************************************************************************
753 **
754 ** Function         GATTS_AddIncludeService
755 **
756 ** Description      This function is called to add an included service.
757 **
758 ** Parameter        service_handle : To which service this included service is added to.
759 **                  include_svc_handle    : included service handle.
760 **
761 ** Returns          included service attribute handle. If 0, add included service
762 **                  fail.
763 **
764 *******************************************************************************/
765 extern UINT16 GATTS_AddIncludeService (UINT16 service_handle,
766                                        UINT16 include_svc_handle);
767 
768 
769 /*******************************************************************************
770 **
771 ** Function         GATTS_AddCharacteristic
772 **
773 ** Description      This function is called to add a characteristic into a service.
774 **                  It will add a characteristic declaration and characteristic
775 **                  value declaration into the service database identified by the
776 **                  service handle.
777 **
778 ** Parameter        service_handle : To which service this included service is added to.
779 **                  char_uuid : Characteristic UUID.
780 **                  perm      : Characteristic value declaration attribute permission.
781 **                  property  : Characteristic Properties
782 **
783 ** Returns          Characteristic value declaration attribute handle. 0 if add
784 **                  characteristic failed.
785 **
786 *******************************************************************************/
787 extern UINT16 GATTS_AddCharacteristic (UINT16 service_handle, tBT_UUID *p_char_uuid,
788                                 tGATT_PERM perm, tGATT_CHAR_PROP property,
789                                 tGATT_ATTR_VAL *attr_val, tGATTS_ATTR_CONTROL *control);
790 
791 /*******************************************************************************
792 **
793 ** Function         GATTS_AddCharDescriptor
794 **
795 ** Description      This function is called to add a characteristic descriptor
796 **                  into a service database. Add descriptor should follow add char
797 **                  to which it belongs, and next add char should be done only
798 **                  after all add descriptors for the previous char.
799 **
800 ** Parameter        service_handle  : To which service this characteristic descriptor
801 **                                    is added to.
802 **                  perm            : Characteristic value declaration attribute
803 **                                    permission.
804 **                  p_descr_uuid    : Characteristic descriptor UUID.
805 **
806 ** Returns         Characteristic descriptor attribute handle. 0 if add
807 **                 characteristic descriptor failed.
808 **
809 *******************************************************************************/
810 extern UINT16 GATTS_AddCharDescriptor (UINT16 service_handle, tGATT_PERM perm,
811                                                                 tBT_UUID   *p_descr_uuid, tGATT_ATTR_VAL *attr_val,
812                                                                 tGATTS_ATTR_CONTROL *control);
813 
814 /*******************************************************************************
815 **
816 ** Function         GATTS_DeleteService
817 **
818 ** Description      This function is called to delete a service.
819 **
820 ** Parameter        gatt_if       : application interface
821 **                  p_svc_uuid    : service UUID
822 **                  svc_inst      : instance of the service inside the application
823 **
824 ** Returns          TRUE if operation succeed, FALSE if handle block was not found.
825 **
826 *******************************************************************************/
827 extern BOOLEAN GATTS_DeleteService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid,
828                                     UINT16 svc_inst);
829 
830 /*******************************************************************************
831 **
832 ** Function         GATTS_StartService
833 **
834 ** Description      This function is called to start a service with GATT
835 **
836 ** Parameter        gatt_if : service handle.
837 **                  p_cback       : application service callback functions.
838 **                  sup_transport : supported transport(s) for this primary service
839 **
840 ** return           GATT_SUCCESS if successfully started; otherwise error code.
841 **
842 *******************************************************************************/
843 extern tGATT_STATUS GATTS_StartService (tGATT_IF gatt_if, UINT16 service_handle,
844                                         tGATT_TRANSPORT sup_transport);
845 
846 
847 /*******************************************************************************
848 **
849 ** Function         GATTS_StopService
850 **
851 ** Description      This function is called to stop a service
852 **
853 ** Parameter         service_handle : this is the start handle of a service
854 **
855 ** Returns          None.
856 **
857 *******************************************************************************/
858 extern void GATTS_StopService (UINT16 service_handle);
859 
860 
861 /*******************************************************************************
862 **
863 ** Function         GATTs_HandleValueIndication
864 **
865 ** Description      This function sends a handle value indication to a client.
866 **
867 ** Parameter        conn_id: connection identifier.
868 **                  attr_handle: Attribute handle of this handle value indication.
869 **                  val_len: Length of the indicated attribute value.
870 **                  p_val: Pointer to the indicated attribute value data.
871 **
872 ** Returns          GATT_SUCCESS if successfully sent or queued; otherwise error code.
873 **
874 *******************************************************************************/
875 extern  tGATT_STATUS GATTS_HandleValueIndication (UINT16 conn_id,
876         UINT16 attr_handle,
877         UINT16 val_len, UINT8 *p_val);
878 
879 /*******************************************************************************
880 **
881 ** Function         GATTS_HandleValueNotification
882 **
883 ** Description      This function sends a handle value notification to a client.
884 **
885 ** Parameter       conn_id: connection identifier.
886 **                  attr_handle: Attribute handle of this handle value indication.
887 **                  val_len: Length of the indicated attribute value.
888 **                  p_val: Pointer to the indicated attribute value data.
889 **
890 ** Returns          GATT_SUCCESS if successfully sent; otherwise error code.
891 **
892 *******************************************************************************/
893 extern  tGATT_STATUS GATTS_HandleValueNotification (UINT16 conn_id, UINT16 attr_handle,
894         UINT16 val_len, UINT8 *p_val);
895 
896 
897 /*******************************************************************************
898 **
899 ** Function         GATTS_SendRsp
900 **
901 ** Description      This function sends the server response to client.
902 **
903 ** Parameter        conn_id: connection identifier.
904 **                  trans_id: transaction id
905 **                  status: response status
906 **                  p_msg: pointer to message parameters structure.
907 **
908 ** Returns          GATT_SUCCESS if successfully sent; otherwise error code.
909 **
910 *******************************************************************************/
911 extern  tGATT_STATUS GATTS_SendRsp (UINT16 conn_id,  UINT32 trans_id,
912                                     tGATT_STATUS status, tGATTS_RSP *p_msg);
913 
914 
915 /*******************************************************************************
916 **
917 ** Function         GATTS_SetAttributeValue
918 **
919 ** Description      This function sends to set the attribute value .
920 **
921 ** Parameter        attr_handle:the attribute handle
922 **                      length: the attribute length
923 **                      value: the value to be set to the attribute in the database
924 **
925 ** Returns          GATT_SUCCESS if successfully sent; otherwise error code.
926 **
927 *******************************************************************************/
928 tGATT_STATUS GATTS_SetAttributeValue(UINT16 attr_handle, UINT16 length, UINT8 *value);
929 
930 
931 /*******************************************************************************
932 **
933 ** Function         GATTS_GetAttributeValue
934 **
935 ** Description      This function sends to set the attribute value .
936 **
937 ** Parameter        attr_handle: the attribute handle
938 **                      length:the attribute value length in the database
939 **                      value: the attribute value out put
940 **
941 ** Returns          GATT_SUCCESS if successfully sent; otherwise error code.
942 **
943 *******************************************************************************/
944 tGATT_STATUS GATTS_GetAttributeValue(UINT16 attr_handle, UINT16 *length, UINT8 **value);
945 
946 
947 
948 /*******************************************************************************/
949 /* GATT Profile Client Functions */
950 /*******************************************************************************/
951 
952 /*******************************************************************************
953 **
954 ** Function         GATTC_ConfigureMTU
955 **
956 ** Description      This function is called to configure the ATT MTU size for
957 **                  a connection on an LE transport.
958 **
959 ** Parameters       conn_id: connection identifier.
960 **                  mtu    - attribute MTU size..
961 **
962 ** Returns          GATT_SUCCESS if command started successfully.
963 **
964 *******************************************************************************/
965 extern tGATT_STATUS GATTC_ConfigureMTU (UINT16 conn_id);
966 
967 /*******************************************************************************
968 **
969 ** Function         GATTC_Discover
970 **
971 ** Description      This function is called to do a discovery procedure on ATT server.
972 **
973 ** Parameters       conn_id: connection identifier.
974 **                  disc_type:discovery type.
975 **                  p_param: parameters of discovery requirement.
976 **
977 ** Returns          GATT_SUCCESS if command received/sent successfully.
978 **
979 *******************************************************************************/
980 extern tGATT_STATUS GATTC_Discover (UINT16 conn_id,
981                                     tGATT_DISC_TYPE disc_type,
982                                     tGATT_DISC_PARAM *p_param );
983 /*******************************************************************************
984 **
985 ** Function         GATTC_Read
986 **
987 ** Description      This function is called to read the value of an attribute from
988 **                  the server.
989 **
990 ** Parameters       conn_id: connection identifier.
991 **                  type    - attribute read type.
992 **                  p_read  - read operation parameters.
993 **
994 ** Returns          GATT_SUCCESS if command started successfully.
995 **
996 *******************************************************************************/
997 extern tGATT_STATUS GATTC_Read (UINT16 conn_id, tGATT_READ_TYPE type,
998                                 tGATT_READ_PARAM *p_read);
999 
1000 /*******************************************************************************
1001 **
1002 ** Function         GATTC_Write
1003 **
1004 ** Description      This function is called to read the value of an attribute from
1005 **                  the server.
1006 **
1007 ** Parameters       conn_id: connection identifier.
1008 **                  type    - attribute write type.
1009 **                  p_write  - write operation parameters.
1010 **
1011 ** Returns          GATT_SUCCESS if command started successfully.
1012 **
1013 *******************************************************************************/
1014 extern tGATT_STATUS GATTC_Write (UINT16 conn_id, tGATT_WRITE_TYPE type,
1015                                  tGATT_VALUE *p_write);
1016 
1017 
1018 /*******************************************************************************
1019 **
1020 ** Function         GATTC_ExecuteWrite
1021 **
1022 ** Description      This function is called to send an Execute write request to
1023 **                  the server.
1024 **
1025 ** Parameters       conn_id: connection identifier.
1026 **                  is_execute - to execute or cancel the prepare write request(s)
1027 **
1028 ** Returns          GATT_SUCCESS if command started successfully.
1029 **
1030 *******************************************************************************/
1031 extern tGATT_STATUS GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute);
1032 
1033 /*******************************************************************************
1034 **
1035 ** Function         GATTC_SendHandleValueConfirm
1036 **
1037 ** Description      This function is called to send a handle value confirmation
1038 **                  as response to a handle value notification from server.
1039 **
1040 ** Parameters       conn_id: connection identifier.
1041 **                  handle: the handle of the attribute confirmation.
1042 **
1043 ** Returns          GATT_SUCCESS if command started successfully.
1044 **
1045 *******************************************************************************/
1046 extern tGATT_STATUS GATTC_SendHandleValueConfirm (UINT16 conn_id, UINT16 handle);
1047 
1048 /*******************************************************************************
1049 **
1050 ** Function         GATTC_AutoDiscoverEnable
1051 **
1052 ** Description      This function is called to enable/disable auto discover.
1053 **
1054 ** Parameters       enable: 0 for disable, otherwise enable.
1055 **
1056 ** Returns          GATT_SUCCESS if command started successfully.
1057 **
1058 *******************************************************************************/
1059 extern tGATT_STATUS GATTC_AutoDiscoverEnable(UINT8 enable);
1060 
1061 /*******************************************************************************
1062 **
1063 ** Function         GATT_SetIdleTimeout
1064 **
1065 ** Description      This function (common to both client and server) sets the idle
1066 **                  timeout for a tansport connection
1067 **
1068 ** Parameter        bd_addr:   target device bd address.
1069 **                  idle_tout: timeout value in seconds.
1070 **                  transport: transport option.
1071 **
1072 ** Returns          void
1073 **
1074 *******************************************************************************/
1075 extern void GATT_SetIdleTimeout (BD_ADDR bd_addr, UINT16 idle_tout,
1076                                  tGATT_TRANSPORT transport);
1077 
1078 
1079 /*******************************************************************************
1080 **
1081 ** Function         GATT_Register
1082 **
1083 ** Description      This function is called to register an  application
1084 **                  with GATT
1085 **
1086 ** Parameter        p_app_uuid128: Application UUID
1087 **                  p_cb_info: callback functions.
1088 **
1089 ** Returns          0 for error, otherwise the index of the client registered with GATT
1090 **
1091 *******************************************************************************/
1092 extern  tGATT_IF GATT_Register (tBT_UUID *p_app_uuid128, const tGATT_CBACK *p_cb_info);
1093 
1094 /*******************************************************************************
1095 **
1096 ** Function         GATT_Deregister
1097 **
1098 ** Description      This function deregistered the application from GATT.
1099 **
1100 ** Parameters       gatt_if: application interface.
1101 **
1102 ** Returns          None.
1103 **
1104 *******************************************************************************/
1105 extern void GATT_Deregister (tGATT_IF gatt_if);
1106 
1107 /*******************************************************************************
1108 **
1109 ** Function         GATT_StartIf
1110 **
1111 ** Description      This function is called after registration to start receiving
1112 **                  callbacks for registered interface.  Function may call back
1113 **                  with connection status and queued notifications
1114 **
1115 ** Parameter        gatt_if: application interface.
1116 **
1117 ** Returns          None
1118 **
1119 *******************************************************************************/
1120 extern  void GATT_StartIf (tGATT_IF gatt_if);
1121 
1122 /*******************************************************************************
1123 **
1124 ** Function         GATT_Connect
1125 **
1126 ** Description      This function initiate a connection to a remote device on GATT
1127 **                  channel.
1128 **
1129 ** Parameters       gatt_if: application interface
1130 **                  bd_addr: peer device address.
1131 **                  bd_addr_type: peer device address type.
1132 **                  is_direct: is a direct connection or a background auto connection
1133 **                  transport : Physical transport for GATT connection (BR/EDR or LE)
1134 **
1135 ** Returns          TRUE if connection started; FALSE if connection start failure.
1136 **
1137 *******************************************************************************/
1138 extern BOOLEAN GATT_Connect (tGATT_IF gatt_if, BD_ADDR bd_addr, tBLE_ADDR_TYPE bd_addr_type,
1139                              BOOLEAN is_direct, tBT_TRANSPORT transport, BOOLEAN is_aux);
1140 
1141 
1142 /*******************************************************************************
1143 **
1144 ** Function         GATT_CancelConnect
1145 **
1146 ** Description      This function terminate the connection initaition to a remote
1147 **                  device on GATT channel.
1148 **
1149 ** Parameters       gatt_if: client interface. If 0 used as unconditionally disconnect,
1150 **                          typically used for direct connection cancellation.
1151 **                  bd_addr: peer device address.
1152 **                  is_direct: is a direct connection or a background auto connection
1153 **
1154 ** Returns          TRUE if connection started; FALSE if connection start failure.
1155 **
1156 *******************************************************************************/
1157 extern BOOLEAN GATT_CancelConnect (tGATT_IF gatt_if, BD_ADDR bd_addr,
1158                                    BOOLEAN is_direct);
1159 
1160 /*******************************************************************************
1161 **
1162 ** Function         GATT_Disconnect
1163 **
1164 ** Description      This function disconnect the GATT channel for this registered
1165 **                  application.
1166 **
1167 ** Parameters       conn_id: connection identifier.
1168 **
1169 ** Returns          GATT_SUCCESS if disconnected.
1170 **
1171 *******************************************************************************/
1172 extern tGATT_STATUS GATT_Disconnect (UINT16 conn_id);
1173 
1174 /*******************************************************************************
1175 **
1176 ** Function         GATT_SendServiceChangeIndication
1177 **
1178 ** Description      This function is to send a service change indication
1179 **
1180 ** Parameters       bd_addr: peer device address.
1181 **
1182 ** Returns          status.
1183 **
1184 *******************************************************************************/
1185 extern tGATT_STATUS GATT_SendServiceChangeIndication (BD_ADDR bd_addr);
1186 
1187 /*******************************************************************************
1188 **
1189 ** Function         GATT_GetConnectionInfor
1190 **
1191 ** Description      This function use conn_id to find its associated BD address and application
1192 **                  interface
1193 **
1194 ** Parameters        conn_id: connection id  (input)
1195 **                   p_gatt_if: application interface (output)
1196 **                   bd_addr: peer device address. (output)
1197 **                   transport :  physical transport of the GATT connection (BR/EDR or LE)
1198 **
1199 ** Returns          TRUE the logical link information is found for conn_id
1200 **
1201 *******************************************************************************/
1202 extern BOOLEAN GATT_GetConnectionInfor(UINT16 conn_id, tGATT_IF *p_gatt_if,
1203                                        BD_ADDR bd_addr, tBT_TRANSPORT *p_transport);
1204 
1205 
1206 /*******************************************************************************
1207 **
1208 ** Function         GATT_GetConnIdIfConnected
1209 **
1210 ** Description      This function find the conn_id if the logical link for BD address
1211 **                  and application interface is connected
1212 **
1213 ** Parameters        gatt_if: application interface (input)
1214 **                   bd_addr: peer device address. (input)
1215 **                   p_conn_id: connection id  (output)
1216 **                   transport :  physical transport of the GATT connection (BR/EDR or LE)
1217 **
1218 ** Returns          TRUE the logical link is connected
1219 **
1220 *******************************************************************************/
1221 extern BOOLEAN GATT_GetConnIdIfConnected(tGATT_IF gatt_if, BD_ADDR bd_addr,
1222         UINT16 *p_conn_id, tBT_TRANSPORT transport);
1223 
1224 
1225 /*******************************************************************************
1226 **
1227 ** Function         GATT_Listen
1228 **
1229 ** Description      This function start or stop LE advertisement and listen for
1230 **                  connection.
1231 **
1232 ** Parameters       gatt_if: application interface
1233 **                  p_bd_addr: listen for specific address connection, or NULL for
1234 **                             listen to all device connection.
1235 **                  start: is a direct connection or a background auto connection
1236 **
1237 ** Returns          TRUE if advertisement is started; FALSE if adv start failure.
1238 **
1239 *******************************************************************************/
1240 extern BOOLEAN GATT_Listen (tGATT_IF gatt_if, BOOLEAN start, BD_ADDR_PTR bd_addr);
1241 
1242 /*******************************************************************************
1243 **
1244 ** Function         GATT_ConfigServiceChangeCCC
1245 **
1246 ** Description      Configure service change indication on remote device
1247 **
1248 ** Returns          None.
1249 **
1250 *******************************************************************************/
1251 extern void GATT_ConfigServiceChangeCCC (BD_ADDR remote_bda, BOOLEAN enable,
1252         tBT_TRANSPORT transport);
1253 
1254 /*******************************************************************************
1255 **
1256 ** Function         GATTS_SetServiceChangeMode
1257 **
1258 ** Description      Configure service change indication mode
1259 **
1260 ** Parameters       mode: service change mode
1261 **
1262 ** Returns          Status.
1263 **
1264 *******************************************************************************/
1265 extern tGATT_STATUS GATTS_SetServiceChangeMode(UINT8 mode);
1266 
1267 /*******************************************************************************
1268 **
1269 ** Function         GATTS_HandleMultiValueNotification
1270 **
1271 ** Description      This function sends multiple handle value notification to a client.
1272 **
1273 ** Parameter        conn_id: connection identifier.
1274 **                  tuples: Pointer to handle-length-value tuple list.
1275 **                  num_tuples: Number of tuples.
1276 **
1277 ** Returns          GATT_SUCCESS if successfully sent; otherwise error code.
1278 **
1279 *******************************************************************************/
1280 extern tGATT_STATUS GATTS_HandleMultiValueNotification (UINT16 conn_id, tGATT_HLV *tuples, UINT16 num_tuples);
1281 
1282 #ifdef __cplusplus
1283 
1284 }
1285 #endif
1286 
1287 #endif  /* GATT_API_H */
1288