1 /******************************************************************************
2 *
3 * Copyright 2010-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * This is the implementation of the API for GATT server of BTA.
22 *
23 ******************************************************************************/
24
25 #include "bt_target.h"
26
27 #include <base/bind.h>
28 #include <string.h>
29
30 #include "bt_common.h"
31 #include "bta_closure_api.h"
32 #include "bta_gatt_api.h"
33 #include "bta_gatts_int.h"
34 #include "bta_sys.h"
35
36 /*****************************************************************************
37 * Constants
38 ****************************************************************************/
39
40 static const tBTA_SYS_REG bta_gatts_reg = {bta_gatts_hdl_event,
41 BTA_GATTS_Disable};
42
43 /*******************************************************************************
44 *
45 * Function BTA_GATTS_Disable
46 *
47 * Description This function is called to disable GATTS module
48 *
49 * Parameters None.
50 *
51 * Returns None
52 *
53 ******************************************************************************/
BTA_GATTS_Disable(void)54 void BTA_GATTS_Disable(void) {
55 if (!bta_sys_is_register(BTA_ID_GATTS)) {
56 LOG(WARNING) << "GATTS Module not enabled/already disabled";
57 return;
58 }
59
60 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
61 p_buf->event = BTA_GATTS_API_DISABLE_EVT;
62 bta_sys_sendmsg(p_buf);
63 bta_sys_deregister(BTA_ID_GATTS);
64 }
65
66 /*******************************************************************************
67 *
68 * Function BTA_GATTS_AppRegister
69 *
70 * Description This function is called to register application callbacks
71 * with BTA GATTS module.
72 *
73 * Parameters p_app_uuid - applicaiton UUID
74 * p_cback - pointer to the application callback function.
75 *
76 * Returns None
77 *
78 ******************************************************************************/
BTA_GATTS_AppRegister(const bluetooth::Uuid & app_uuid,tBTA_GATTS_CBACK * p_cback)79 void BTA_GATTS_AppRegister(const bluetooth::Uuid& app_uuid,
80 tBTA_GATTS_CBACK* p_cback) {
81 tBTA_GATTS_API_REG* p_buf =
82 (tBTA_GATTS_API_REG*)osi_malloc(sizeof(tBTA_GATTS_API_REG));
83
84 /* register with BTA system manager */
85 if (!bta_sys_is_register(BTA_ID_GATTS))
86 bta_sys_register(BTA_ID_GATTS, &bta_gatts_reg);
87
88 p_buf->hdr.event = BTA_GATTS_API_REG_EVT;
89 p_buf->app_uuid = app_uuid;
90 p_buf->p_cback = p_cback;
91
92 bta_sys_sendmsg(p_buf);
93 }
94
95 /*******************************************************************************
96 *
97 * Function BTA_GATTS_AppDeregister
98 *
99 * Description De-register with GATT Server.
100 *
101 * Parameters app_id: applicatino ID.
102 *
103 * Returns void
104 *
105 ******************************************************************************/
BTA_GATTS_AppDeregister(tGATT_IF server_if)106 void BTA_GATTS_AppDeregister(tGATT_IF server_if) {
107 tBTA_GATTS_API_DEREG* p_buf =
108 (tBTA_GATTS_API_DEREG*)osi_malloc(sizeof(tBTA_GATTS_API_DEREG));
109
110 p_buf->hdr.event = BTA_GATTS_API_DEREG_EVT;
111 p_buf->server_if = server_if;
112
113 bta_sys_sendmsg(p_buf);
114 }
115
bta_gatts_add_service_impl(tGATT_IF server_if,std::vector<btgatt_db_element_t> service,BTA_GATTS_AddServiceCb cb)116 void bta_gatts_add_service_impl(tGATT_IF server_if,
117 std::vector<btgatt_db_element_t> service,
118 BTA_GATTS_AddServiceCb cb) {
119 uint8_t rcb_idx =
120 bta_gatts_find_app_rcb_idx_by_app_if(&bta_gatts_cb, server_if);
121
122 LOG(INFO) << __func__ << ": rcb_idx=" << +rcb_idx;
123
124 if (rcb_idx == BTA_GATTS_INVALID_APP) {
125 cb.Run(GATT_ERROR, server_if, std::move(service));
126 return;
127 }
128
129 uint8_t srvc_idx = bta_gatts_alloc_srvc_cb(&bta_gatts_cb, rcb_idx);
130 if (srvc_idx == BTA_GATTS_INVALID_APP) {
131 cb.Run(GATT_ERROR, server_if, std::move(service));
132 return;
133 }
134
135 uint16_t status = GATTS_AddService(server_if, service.data(), service.size());
136 if (status != GATT_SERVICE_STARTED) {
137 memset(&bta_gatts_cb.srvc_cb[srvc_idx], 0, sizeof(tBTA_GATTS_SRVC_CB));
138 LOG(ERROR) << __func__ << ": service creation failed.";
139 cb.Run(GATT_ERROR, server_if, std::move(service));
140 return;
141 }
142
143 bta_gatts_cb.srvc_cb[srvc_idx].service_uuid = service[0].uuid;
144
145 // service_id is equal to service start handle
146 bta_gatts_cb.srvc_cb[srvc_idx].service_id = service[0].attribute_handle;
147 bta_gatts_cb.srvc_cb[srvc_idx].idx = srvc_idx;
148
149 cb.Run(GATT_SUCCESS, server_if, std::move(service));
150 return;
151 }
152
153 /*******************************************************************************
154 *
155 * Function BTA_GATTS_AddService
156 *
157 * Description Add the given |service| and all included elements to the
158 * GATT database. a |BTA_GATTS_ADD_SRVC_EVT| is triggered to
159 * report the status and attribute handles.
160 *
161 * Parameters server_if: server interface.
162 * service: pointer vector describing service.
163 *
164 * Returns Returns |GATT_SUCCESS| on success or |GATT_ERROR| if the
165 * service cannot be added.
166 *
167 ******************************************************************************/
BTA_GATTS_AddService(tGATT_IF server_if,std::vector<btgatt_db_element_t> service,BTA_GATTS_AddServiceCb cb)168 extern void BTA_GATTS_AddService(tGATT_IF server_if,
169 std::vector<btgatt_db_element_t> service,
170 BTA_GATTS_AddServiceCb cb) {
171 do_in_bta_thread(FROM_HERE, base::Bind(&bta_gatts_add_service_impl, server_if,
172 std::move(service), std::move(cb)));
173 }
174
175 /*******************************************************************************
176 *
177 * Function BTA_GATTS_DeleteService
178 *
179 * Description This function is called to delete a service. When this is
180 * done, a callback event BTA_GATTS_DELETE_EVT is report with
181 * the status.
182 *
183 * Parameters service_id: service_id to be deleted.
184 *
185 * Returns returns none.
186 *
187 ******************************************************************************/
BTA_GATTS_DeleteService(uint16_t service_id)188 void BTA_GATTS_DeleteService(uint16_t service_id) {
189 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
190
191 p_buf->event = BTA_GATTS_API_DEL_SRVC_EVT;
192 p_buf->layer_specific = service_id;
193
194 bta_sys_sendmsg(p_buf);
195 }
196
197 /*******************************************************************************
198 *
199 * Function BTA_GATTS_StopService
200 *
201 * Description This function is called to stop a service.
202 *
203 * Parameters service_id - service to be topped.
204 *
205 * Returns None
206 *
207 ******************************************************************************/
BTA_GATTS_StopService(uint16_t service_id)208 void BTA_GATTS_StopService(uint16_t service_id) {
209 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
210
211 p_buf->event = BTA_GATTS_API_STOP_SRVC_EVT;
212 p_buf->layer_specific = service_id;
213
214 bta_sys_sendmsg(p_buf);
215 }
216
217 /*******************************************************************************
218 *
219 * Function BTA_GATTS_HandleValueIndication
220 *
221 * Description This function is called to read a characteristics
222 * descriptor.
223 *
224 * Parameters bda - remote device bd address to indicate.
225 * attr_id - attribute ID to indicate.
226 * value - data to indicate.
227 * need_confirm - if this indication expects a confirmation or
228 * not.
229 *
230 * Returns None
231 *
232 ******************************************************************************/
BTA_GATTS_HandleValueIndication(uint16_t conn_id,uint16_t attr_id,std::vector<uint8_t> value,bool need_confirm)233 void BTA_GATTS_HandleValueIndication(uint16_t conn_id, uint16_t attr_id,
234 std::vector<uint8_t> value,
235 bool need_confirm) {
236 tBTA_GATTS_API_INDICATION* p_buf =
237 (tBTA_GATTS_API_INDICATION*)osi_calloc(sizeof(tBTA_GATTS_API_INDICATION));
238
239 p_buf->hdr.event = BTA_GATTS_API_INDICATION_EVT;
240 p_buf->hdr.layer_specific = conn_id;
241 p_buf->attr_id = attr_id;
242 p_buf->need_confirm = need_confirm;
243 if (value.size() > 0) {
244 p_buf->len = value.size();
245 memcpy(p_buf->value, value.data(), value.size());
246 }
247
248 bta_sys_sendmsg(p_buf);
249 }
250
251 /*******************************************************************************
252 *
253 * Function BTA_GATTS_SendRsp
254 *
255 * Description This function is called to send a response to a request.
256 *
257 * Parameters conn_id - connection identifier.
258 * trans_id - transaction ID.
259 * status - response status
260 * p_msg - response data.
261 *
262 * Returns None
263 *
264 ******************************************************************************/
BTA_GATTS_SendRsp(uint16_t conn_id,uint32_t trans_id,tGATT_STATUS status,tGATTS_RSP * p_msg)265 void BTA_GATTS_SendRsp(uint16_t conn_id, uint32_t trans_id, tGATT_STATUS status,
266 tGATTS_RSP* p_msg) {
267 const size_t len = sizeof(tBTA_GATTS_API_RSP) + sizeof(tGATTS_RSP);
268 tBTA_GATTS_API_RSP* p_buf = (tBTA_GATTS_API_RSP*)osi_calloc(len);
269
270 p_buf->hdr.event = BTA_GATTS_API_RSP_EVT;
271 p_buf->hdr.layer_specific = conn_id;
272 p_buf->trans_id = trans_id;
273 p_buf->status = status;
274 if (p_msg != NULL) {
275 p_buf->p_rsp = (tGATTS_RSP*)(p_buf + 1);
276 memcpy(p_buf->p_rsp, p_msg, sizeof(tGATTS_RSP));
277 }
278
279 bta_sys_sendmsg(p_buf);
280 }
281
282 /*******************************************************************************
283 *
284 * Function BTA_GATTS_Open
285 *
286 * Description Open a direct open connection or add a background auto
287 * connection bd address
288 *
289 * Parameters server_if: server interface.
290 * remote_bda: remote device BD address.
291 * is_direct: direct connection or background auto connection
292 * transport : Transport on which GATT connection to be opened
293 * (BR/EDR or LE)
294 *
295 * Returns void
296 *
297 ******************************************************************************/
BTA_GATTS_Open(tGATT_IF server_if,const RawAddress & remote_bda,bool is_direct,tGATT_TRANSPORT transport)298 void BTA_GATTS_Open(tGATT_IF server_if, const RawAddress& remote_bda,
299 bool is_direct, tGATT_TRANSPORT transport) {
300 tBTA_GATTS_API_OPEN* p_buf =
301 (tBTA_GATTS_API_OPEN*)osi_malloc(sizeof(tBTA_GATTS_API_OPEN));
302
303 p_buf->hdr.event = BTA_GATTS_API_OPEN_EVT;
304 p_buf->server_if = server_if;
305 p_buf->is_direct = is_direct;
306 p_buf->transport = transport;
307 p_buf->remote_bda = remote_bda;
308
309 bta_sys_sendmsg(p_buf);
310 }
311
312 /*******************************************************************************
313 *
314 * Function BTA_GATTS_CancelOpen
315 *
316 * Description Cancel a direct open connection or remove a background auto
317 * connection bd address
318 *
319 * Parameters server_if: server interface.
320 * remote_bda: remote device BD address.
321 * is_direct: direct connection or background auto connection
322 *
323 * Returns void
324 *
325 ******************************************************************************/
BTA_GATTS_CancelOpen(tGATT_IF server_if,const RawAddress & remote_bda,bool is_direct)326 void BTA_GATTS_CancelOpen(tGATT_IF server_if, const RawAddress& remote_bda,
327 bool is_direct) {
328 tBTA_GATTS_API_CANCEL_OPEN* p_buf = (tBTA_GATTS_API_CANCEL_OPEN*)osi_malloc(
329 sizeof(tBTA_GATTS_API_CANCEL_OPEN));
330
331 p_buf->hdr.event = BTA_GATTS_API_CANCEL_OPEN_EVT;
332 p_buf->server_if = server_if;
333 p_buf->is_direct = is_direct;
334 p_buf->remote_bda = remote_bda;
335
336 bta_sys_sendmsg(p_buf);
337 }
338
339 /*******************************************************************************
340 *
341 * Function BTA_GATTS_Close
342 *
343 * Description Close a connection a remote device.
344 *
345 * Parameters conn_id: connectino ID to be closed.
346 *
347 * Returns void
348 *
349 ******************************************************************************/
BTA_GATTS_Close(uint16_t conn_id)350 void BTA_GATTS_Close(uint16_t conn_id) {
351 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
352
353 p_buf->event = BTA_GATTS_API_CLOSE_EVT;
354 p_buf->layer_specific = conn_id;
355
356 bta_sys_sendmsg(p_buf);
357 }
358