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 */
35 uint8_t value[BTGATT_MAX_ATTR_LEN];
37 } btgatt_unformatted_value_t;
39 /** Parameters for GATT read operations */
42 btgatt_srvc_id_t srvc_id;
43 btgatt_gatt_id_t char_id;
44 btgatt_gatt_id_t descr_id;
45 btgatt_unformatted_value_t value;
48 } btgatt_read_params_t;
50 /** Parameters for GATT write operations */
53 btgatt_srvc_id_t srvc_id;
54 btgatt_gatt_id_t char_id;
55 btgatt_gatt_id_t descr_id;
57 } btgatt_write_params_t;
59 /** Attribute change notification parameters */
62 uint8_t value[BTGATT_MAX_ATTR_LEN];
64 btgatt_srvc_id_t srvc_id;
65 btgatt_gatt_id_t char_id;
68 } btgatt_notify_params_t;
79 } btgatt_test_params_t;
81 /** BT-GATT Client callback structure. */
83 /** Callback invoked in response to register_client */
84 typedef void (*register_client_callback)(int status, int client_if,
87 /** Callback for scan results */
88 typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data);
90 /** GATT open callback invoked in response to open */
91 typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);
93 /** Callback invoked in response to close */
94 typedef void (*disconnect_callback)(int conn_id, int status,
95 int client_if, bt_bdaddr_t* bda);
98 * Invoked in response to search_service when the GATT service search
101 typedef void (*search_complete_callback)(int conn_id, int status);
103 /** Reports GATT services on a remote device */
104 typedef void (*search_result_callback)( int conn_id, btgatt_srvc_id_t *srvc_id);
106 /** GATT characteristic enumeration result callback */
107 typedef void (*get_characteristic_callback)(int conn_id, int status,
108 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
111 /** GATT descriptor enumeration result callback */
112 typedef void (*get_descriptor_callback)(int conn_id, int status,
113 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
114 btgatt_gatt_id_t *descr_id);
116 /** GATT included service enumeration result callback */
117 typedef void (*get_included_service_callback)(int conn_id, int status,
118 btgatt_srvc_id_t *srvc_id, btgatt_srvc_id_t *incl_srvc_id);
120 /** Callback invoked in response to [de]register_for_notification */
121 typedef void (*register_for_notification_callback)(int conn_id,
122 int registered, int status, btgatt_srvc_id_t *srvc_id,
123 btgatt_gatt_id_t *char_id);
126 * Remote device notification callback, invoked when a remote device sends
127 * a notification or indication that a client has registered for.
129 typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);
131 /** Reports result of a GATT read operation */
132 typedef void (*read_characteristic_callback)(int conn_id, int status,
133 btgatt_read_params_t *p_data);
135 /** GATT write characteristic operation callback */
136 typedef void (*write_characteristic_callback)(int conn_id, int status,
137 btgatt_write_params_t *p_data);
139 /** GATT execute prepared write callback */
140 typedef void (*execute_write_callback)(int conn_id, int status);
142 /** Callback invoked in response to read_descriptor */
143 typedef void (*read_descriptor_callback)(int conn_id, int status,
144 btgatt_read_params_t *p_data);
146 /** Callback invoked in response to write_descriptor */
147 typedef void (*write_descriptor_callback)(int conn_id, int status,
148 btgatt_write_params_t *p_data);
150 /** Callback triggered in response to read_remote_rssi */
151 typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,
152 int rssi, int status);
154 /** Callback invoked when the MTU for a given connection changes */
155 typedef void (*configure_mtu_callback)(int conn_id, int status, int mtu);
157 /** Callback invoked when a scan filter configuration command has completed */
158 typedef void (*scan_filter_cfg_callback)(int action, int client_if, int status, int filt_type,
161 /** Callback invoked when scan param has been added, cleared, or deleted */
162 typedef void (*scan_filter_param_callback)(int action, int client_if, int status,
165 /** Callback invoked when a scan filter configuration command has completed */
166 typedef void (*scan_filter_status_callback)(int enable, int client_if, int status);
169 * Callback notifying an application that a remote device connection is currently congested
170 * and cannot receive any more data. An application should avoid sending more data until
171 * a further callback is received indicating the congestion status has been cleared.
173 typedef void (*congestion_callback)(int conn_id, bool congested);
174 /** Callback invoked when batchscan storage config operation has completed */
175 typedef void (*batchscan_cfg_storage_callback)(int client_if, int status);
177 /** Callback invoked when batchscan enable / disable operation has completed */
178 typedef void (*batchscan_enable_disable_callback)(int action, int client_if, int status);
180 /** Callback invoked when batchscan reports are obtained */
181 typedef void (*batchscan_reports_callback)(int client_if, int status, int report_format,
182 int num_records, int data_len, uint8_t* rep_data);
184 /** Callback invoked when batchscan storage threshold limit is crossed */
185 typedef void (*batchscan_threshold_callback)(int client_if);
187 /** Track ADV VSE callback invoked when tracked device is found or lost */
188 typedef void (*track_adv_event_callback)(int client_if, int filt_index, int addr_type,
189 bt_bdaddr_t* bda, int adv_state);
191 register_client_callback register_client_cb;
192 scan_result_callback scan_result_cb;
193 connect_callback open_cb;
194 disconnect_callback close_cb;
195 search_complete_callback search_complete_cb;
196 search_result_callback search_result_cb;
197 get_characteristic_callback get_characteristic_cb;
198 get_descriptor_callback get_descriptor_cb;
199 get_included_service_callback get_included_service_cb;
200 register_for_notification_callback register_for_notification_cb;
201 notify_callback notify_cb;
202 read_characteristic_callback read_characteristic_cb;
203 write_characteristic_callback write_characteristic_cb;
204 read_descriptor_callback read_descriptor_cb;
205 write_descriptor_callback write_descriptor_cb;
206 execute_write_callback execute_write_cb;
207 read_remote_rssi_callback read_remote_rssi_cb;
208 configure_mtu_callback configure_mtu_cb;
209 scan_filter_cfg_callback scan_filter_cfg_cb;
210 scan_filter_param_callback scan_filter_param_cb;
211 scan_filter_status_callback scan_filter_status_cb;
212 congestion_callback congestion_cb;
213 batchscan_cfg_storage_callback batchscan_cfg_storage_cb;
214 batchscan_enable_disable_callback batchscan_enb_disable_cb;
215 batchscan_reports_callback batchscan_reports_cb;
216 batchscan_threshold_callback batchscan_threshold_cb;
217 track_adv_event_callback track_adv_event_cb;
218 } btgatt_client_callbacks_t;
220 /** Represents the standard BT-GATT client interface. */
223 /** Registers a GATT client application with the stack */
224 bt_status_t (*register_client)( bt_uuid_t *uuid );
226 /** Unregister a client application from the stack */
227 bt_status_t (*unregister_client)(int client_if );
229 /** Start or stop LE device scanning */
230 bt_status_t (*scan)( int client_if, bool start );
232 /** Create a connection to a remote LE or dual-mode device */
233 bt_status_t (*connect)( int client_if, const bt_bdaddr_t *bd_addr,
236 /** Disconnect a remote device or cancel a pending connection */
237 bt_status_t (*disconnect)( int client_if, const bt_bdaddr_t *bd_addr,
240 /** Clear the attribute cache for a given device */
241 bt_status_t (*refresh)( int client_if, const bt_bdaddr_t *bd_addr );
244 * Enumerate all GATT services on a connected device.
245 * Optionally, the results can be filtered for a given UUID.
247 bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid );
250 * Enumerate included services for a given service.
251 * Set start_incl_srvc_id to NULL to get the first included service.
253 bt_status_t (*get_included_service)( int conn_id, btgatt_srvc_id_t *srvc_id,
254 btgatt_srvc_id_t *start_incl_srvc_id);
257 * Enumerate characteristics for a given service.
258 * Set start_char_id to NULL to get the first characteristic.
260 bt_status_t (*get_characteristic)( int conn_id,
261 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *start_char_id);
264 * Enumerate descriptors for a given characteristic.
265 * Set start_descr_id to NULL to get the first descriptor.
267 bt_status_t (*get_descriptor)( int conn_id,
268 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
269 btgatt_gatt_id_t *start_descr_id);
271 /** Read a characteristic on a remote device */
272 bt_status_t (*read_characteristic)( int conn_id,
273 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
276 /** Write a remote characteristic */
277 bt_status_t (*write_characteristic)(int conn_id,
278 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
279 int write_type, int len, int auth_req,
282 /** Read the descriptor for a given characteristic */
283 bt_status_t (*read_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 auth_req);
287 /** Write a remote descriptor for a given characteristic */
288 bt_status_t (*write_descriptor)( int conn_id,
289 btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
290 btgatt_gatt_id_t *descr_id, int write_type, int len,
291 int auth_req, char* p_value);
293 /** Execute a prepared write operation */
294 bt_status_t (*execute_write)(int conn_id, int execute);
297 * Register to receive notifications or indications for a given
300 bt_status_t (*register_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 /** Deregister a previous request for notifications/indications */
305 bt_status_t (*deregister_for_notification)( int client_if,
306 const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,
307 btgatt_gatt_id_t *char_id);
309 /** Request RSSI for a given remote device */
310 bt_status_t (*read_remote_rssi)( int client_if, const bt_bdaddr_t *bd_addr);
312 /** OTA firmware download */
313 bt_status_t (*ota_fw_update)(int client_if, int conn_id, const bt_bdaddr_t *bd_addr, char* path);
315 /** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */
316 int (*get_device_type)( const bt_bdaddr_t *bd_addr );
318 /** Request a connection parameter update */
319 bt_status_t (*conn_parameter_update)(bt_bdaddr_t *bd, int min_int, int max_int, int latency, int timeout);
321 /** Test mode interface */
322 bt_status_t (*test_command)( int command, btgatt_test_params_t* params);
324 /** MTU Exchange request from client */
325 bt_status_t (*configure_mtu)( int conn_id, int mtu);
327 /** Setup scan filter params */
328 bt_status_t (*scan_filter_param_setup)(int client_if, int action, int filt_index, int feat_seln,
329 int list_logic_type, int filt_logic_type, int rssi_high_thres,
330 int rssi_low_thres, int dely_mode, int found_timeout,
331 int lost_timeout, int found_timeout_cnt);
334 /** Configure a scan filter condition */
335 bt_status_t (*scan_filter_add_remove)(int client_if, int action, int filt_type,
336 int filt_index, int company_id,
337 int company_id_mask, const bt_uuid_t *p_uuid,
338 const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,
339 char addr_type, int data_len, char* p_data, int mask_len,
342 /** Clear all scan filter conditions for specific filter index*/
343 bt_status_t (*scan_filter_clear)(int client_if, int filt_index);
345 /** Enable / disable scan filter feature*/
346 bt_status_t (*scan_filter_enable)(int client_if, bool enable);
348 /** Sets the LE scan interval and window in units of N*0.625 msec */
350 bt_status_t (*set_scan_parameters)(int scan_type, int scan_interval, int scan_window);
352 bt_status_t (*set_scan_parameters)(int scan_interval, int scan_window);
355 /* Configure the batchscan storage */
356 bt_status_t (*batchscan_cfg_storage)(int client_if, int batch_scan_full_max,
357 int batch_scan_trunc_max, int batch_scan_notify_threshold);
359 /* Enable batchscan */
360 bt_status_t (*batchscan_enb_batch_scan)(int client_if, int scan_mode,
361 int scan_interval, int scan_window, int addr_type, int discard_rule);
363 /* Disable batchscan */
364 bt_status_t (*batchscan_dis_batch_scan)(int client_if);
366 /* Read out batchscan reports */
367 bt_status_t (*batchscan_read_reports)(int client_if, int scan_mode);
369 } btgatt_client_interface_t;
373 #endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */