2 * Copyright (C) 2013 The Android Open Source Project
3 * Copyright (C) 2009-2014 Broadcom Corporation
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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #ifndef ANDROID_INCLUDE_BT_GATT_CLIENT_H
20 #define ANDROID_INCLUDE_BT_GATT_CLIENT_H
23 #include "bt_gatt_types.h"
28 #define BT_GATTC_LE_SCAN_TYPE_PASSIVE 0x00
29 #define BT_GATTC_LE_SCAN_TYPE_ACTIVE 0x01
32 /** Buffer type for unformatted reads/writes */
34 uint8_t value[BTGATT_MAX_ATTR_LEN];
36 } btgatt_unformatted_value_t;
38 /** Parameters for GATT read operations */
40 btgatt_srvc_id_t srvc_id;
41 btgatt_gatt_id_t char_id;
42 btgatt_gatt_id_t descr_id;
43 btgatt_unformatted_value_t value;
46 } btgatt_read_params_t;
48 /** Parameters for GATT write operations */
50 btgatt_srvc_id_t srvc_id;
51 btgatt_gatt_id_t char_id;
52 btgatt_gatt_id_t descr_id;
54 } btgatt_write_params_t;
56 /** Attribute change notification parameters */
58 uint8_t value[BTGATT_MAX_ATTR_LEN];
60 btgatt_srvc_id_t srvc_id;
61 btgatt_gatt_id_t char_id;
64 } btgatt_notify_params_t;
74 } btgatt_test_params_t;
76 /** BT-GATT Client callback structure. */
78 /** Callback invoked in response to register_client */
79 typedef void (*register_client_callback)(int status, int client_if,
82 /** Callback for scan results */
83 typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data);
85 /** GATT open callback invoked in response to open */
86 typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);
88 /** Callback invoked in response to close */
89 typedef void (*disconnect_callback)(int conn_id, int status,
90 int client_if, bt_bdaddr_t* bda);
93 * Invoked in response to search_service when the GATT service search
96 typedef void (*search_complete_callback)(int conn_id, int status);
98 /** Reports GATT services on a remote device */
99 typedef void (*search_result_callback)(int conn_id, btgatt_srvc_id_t *srvc_id);
101 /** GATT characteristic enumeration result callback */
102 typedef void (*get_characteristic_callback)(int conn_id, int status,
103 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
106 /** GATT descriptor enumeration result callback */
107 typedef void (*get_descriptor_callback)(int conn_id, int status,
108 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
109 btgatt_gatt_id_t *descr_id);
111 /** GATT included service enumeration result callback */
112 typedef void (*get_included_service_callback)(int conn_id, int status,
113 btgatt_srvc_id_t *srvc_id, btgatt_srvc_id_t *incl_srvc_id);
115 /** Callback invoked in response to [de]register_for_notification */
116 typedef void (*register_for_notification_callback)(int conn_id,
117 int registered, int status, btgatt_srvc_id_t *srvc_id,
118 btgatt_gatt_id_t *char_id);
121 * Remote device notification callback, invoked when a remote device sends
122 * a notification or indication that a client has registered for.
124 typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);
126 /** Reports result of a GATT read operation */
127 typedef void (*read_characteristic_callback)(int conn_id, int status,
128 btgatt_read_params_t *p_data);
130 /** GATT write characteristic operation callback */
131 typedef void (*write_characteristic_callback)(int conn_id, int status,
132 btgatt_write_params_t *p_data);
134 /** GATT execute prepared write callback */
135 typedef void (*execute_write_callback)(int conn_id, int status);
137 /** Callback invoked in response to read_descriptor */
138 typedef void (*read_descriptor_callback)(int conn_id, int status,
139 btgatt_read_params_t *p_data);
141 /** Callback invoked in response to write_descriptor */
142 typedef void (*write_descriptor_callback)(int conn_id, int status,
143 btgatt_write_params_t *p_data);
145 /** Callback triggered in response to read_remote_rssi */
146 typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,
147 int rssi, int status);
149 /** Callback invoked when the MTU for a given connection changes */
150 typedef void (*configure_mtu_callback)(int conn_id, int status, int mtu);
152 /** Callback invoked when a scan filter configuration command has completed */
153 typedef void (*scan_filter_cfg_callback)(int action, int client_if, int status, int filt_type,
156 /** Callback invoked when scan param has been added, cleared, or deleted */
157 typedef void (*scan_filter_param_callback)(int action, int client_if, int status,
160 /** Callback invoked when a scan filter configuration command has completed */
161 typedef void (*scan_filter_status_callback)(int enable, int client_if, int status);
164 * Callback notifying an application that a remote device connection is currently congested
165 * and cannot receive any more data. An application should avoid sending more data until
166 * a further callback is received indicating the congestion status has been cleared.
168 typedef void (*congestion_callback)(int conn_id, bool congested);
169 /** Callback invoked when batchscan storage config operation has completed */
170 typedef void (*batchscan_cfg_storage_callback)(int client_if, int status);
172 /** Callback invoked when batchscan enable / disable operation has completed */
173 typedef void (*batchscan_enable_disable_callback)(int action, int client_if, int status);
175 /** Callback invoked when batchscan reports are obtained */
176 typedef void (*batchscan_reports_callback)(int client_if, int status, int report_format,
177 int num_records, int data_len, uint8_t* rep_data);
179 /** Callback invoked when batchscan storage threshold limit is crossed */
180 typedef void (*batchscan_threshold_callback)(int client_if);
182 /** Track ADV VSE callback invoked when tracked device is found or lost */
183 typedef void (*track_adv_event_callback)(int client_if, int filt_index, int addr_type,
184 bt_bdaddr_t* bda, int adv_state);
186 register_client_callback register_client_cb;
187 scan_result_callback scan_result_cb;
188 connect_callback open_cb;
189 disconnect_callback close_cb;
190 search_complete_callback search_complete_cb;
191 search_result_callback search_result_cb;
192 get_characteristic_callback get_characteristic_cb;
193 get_descriptor_callback get_descriptor_cb;
194 get_included_service_callback get_included_service_cb;
195 register_for_notification_callback register_for_notification_cb;
196 notify_callback notify_cb;
197 read_characteristic_callback read_characteristic_cb;
198 write_characteristic_callback write_characteristic_cb;
199 read_descriptor_callback read_descriptor_cb;
200 write_descriptor_callback write_descriptor_cb;
201 execute_write_callback execute_write_cb;
202 read_remote_rssi_callback read_remote_rssi_cb;
203 configure_mtu_callback configure_mtu_cb;
204 scan_filter_cfg_callback scan_filter_cfg_cb;
205 scan_filter_param_callback scan_filter_param_cb;
206 scan_filter_status_callback scan_filter_status_cb;
207 congestion_callback congestion_cb;
208 batchscan_cfg_storage_callback batchscan_cfg_storage_cb;
209 batchscan_enable_disable_callback batchscan_enb_disable_cb;
210 batchscan_reports_callback batchscan_reports_cb;
211 batchscan_threshold_callback batchscan_threshold_cb;
212 track_adv_event_callback track_adv_event_cb;
213 } btgatt_client_callbacks_t;
215 /** Represents the standard BT-GATT client interface. */
218 /** Registers a GATT client application with the stack */
219 bt_status_t (*register_client)(bt_uuid_t *uuid);
221 /** Unregister a client application from the stack */
222 bt_status_t (*unregister_client)(int client_if);
224 /** Start or stop LE device scanning */
225 bt_status_t (*scan)(int client_if, bool start);
227 /** Create a connection to a remote LE or dual-mode device */
228 bt_status_t (*connect)(int client_if, const bt_bdaddr_t *bd_addr,
231 /** Disconnect a remote device or cancel a pending connection */
232 bt_status_t (*disconnect)(int client_if, const bt_bdaddr_t *bd_addr,
235 /** Clear the attribute cache for a given device */
236 bt_status_t (*refresh)(int client_if, const bt_bdaddr_t *bd_addr);
239 * Enumerate all GATT services on a connected device.
240 * Optionally, the results can be filtered for a given UUID.
242 bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid);
245 * Enumerate included services for a given service.
246 * Set start_incl_srvc_id to NULL to get the first included service.
248 bt_status_t (*get_included_service)(int conn_id, btgatt_srvc_id_t *srvc_id,
249 btgatt_srvc_id_t *start_incl_srvc_id);
252 * Enumerate characteristics for a given service.
253 * Set start_char_id to NULL to get the first characteristic.
255 bt_status_t (*get_characteristic)(int conn_id,
256 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *start_char_id);
259 * Enumerate descriptors for a given characteristic.
260 * Set start_descr_id to NULL to get the first descriptor.
262 bt_status_t (*get_descriptor)(int conn_id,
263 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
264 btgatt_gatt_id_t *start_descr_id);
266 /** Read a characteristic on a remote device */
267 bt_status_t (*read_characteristic)(int conn_id,
268 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
271 /** Write a remote characteristic */
272 bt_status_t (*write_characteristic)(int conn_id,
273 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
274 int write_type, int len, int auth_req,
277 /** Read the descriptor for a given characteristic */
278 bt_status_t (*read_descriptor)(int conn_id,
279 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
280 btgatt_gatt_id_t *descr_id, int auth_req);
282 /** Write a remote descriptor for a given characteristic */
283 bt_status_t (*write_descriptor)(int conn_id,
284 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
285 btgatt_gatt_id_t *descr_id, int write_type, int len,
286 int auth_req, char* p_value);
288 /** Execute a prepared write operation */
289 bt_status_t (*execute_write)(int conn_id, int execute);
292 * Register to receive notifications or indications for a given
295 bt_status_t (*register_for_notification)(int client_if,
296 const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,
297 btgatt_gatt_id_t *char_id);
299 /** Deregister a previous request for notifications/indications */
300 bt_status_t (*deregister_for_notification)(int client_if,
301 const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,
302 btgatt_gatt_id_t *char_id);
304 /** Request RSSI for a given remote device */
305 bt_status_t (*read_remote_rssi)(int client_if, const bt_bdaddr_t *bd_addr);
307 /** OTA firmware download */
308 bt_status_t (*ota_fw_update)(int client_if, int conn_id, const bt_bdaddr_t *bd_addr, char* path);
310 /** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */
311 int (*get_device_type)(const bt_bdaddr_t *bd_addr);
313 /** Request a connection parameter update */
314 bt_status_t (*conn_parameter_update)(bt_bdaddr_t *bd, int min_int, int max_int, int latency, int timeout);
316 /** Test mode interface */
317 bt_status_t (*test_command)(int command, btgatt_test_params_t* params);
319 /** MTU Exchange request from client */
320 bt_status_t (*configure_mtu)(int conn_id, int mtu);
322 /** Setup scan filter params */
323 bt_status_t (*scan_filter_param_setup)(int client_if, int action, int filt_index, int feat_seln,
324 int list_logic_type, int filt_logic_type, int rssi_high_thres,
325 int rssi_low_thres, int dely_mode, int found_timeout,
326 int lost_timeout, int found_timeout_cnt);
329 /** Configure a scan filter condition */
330 bt_status_t (*scan_filter_add_remove)(int client_if, int action, int filt_type,
331 int filt_index, int company_id,
332 int company_id_mask, const bt_uuid_t *p_uuid,
333 const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,
334 char addr_type, int data_len, char* p_data, int mask_len,
337 /** Clear all scan filter conditions for specific filter index*/
338 bt_status_t (*scan_filter_clear)(int client_if, int filt_index);
340 /** Enable / disable scan filter feature*/
341 bt_status_t (*scan_filter_enable)(int client_if, bool enable);
343 /** Sets the LE scan interval and window in units of N*0.625 msec */
345 bt_status_t (*set_scan_parameters)(int scan_type, int scan_interval, int scan_window);
347 bt_status_t (*set_scan_parameters)(int scan_interval, int scan_window);
350 /* Configure the batchscan storage */
351 bt_status_t (*batchscan_cfg_storage)(int client_if, int batch_scan_full_max,
352 int batch_scan_trunc_max, int batch_scan_notify_threshold);
354 /* Enable batchscan */
355 bt_status_t (*batchscan_enb_batch_scan)(int client_if, int scan_mode,
356 int scan_interval, int scan_window, int addr_type, int discard_rule);
358 /* Disable batchscan */
359 bt_status_t (*batchscan_dis_batch_scan)(int client_if);
361 /* Read out batchscan reports */
362 bt_status_t (*batchscan_read_reports)(int client_if, int scan_mode);
364 } btgatt_client_interface_t;
368 #endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */