2 * Copyright (C) 2013 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #ifndef ANDROID_INCLUDE_BT_GATT_CLIENT_H
19 #define ANDROID_INCLUDE_BT_GATT_CLIENT_H
22 #include "bt_gatt_types.h"
23 #include "bt_common_types.h"
28 * Buffer sizes for maximum attribute length and maximum read/write
29 * operation buffer size.
31 #define BTGATT_MAX_ATTR_LEN 600
33 /** Buffer type for unformatted reads/writes */
36 uint8_t value[BTGATT_MAX_ATTR_LEN];
38 } btgatt_unformatted_value_t;
40 /** Parameters for GATT read operations */
44 btgatt_unformatted_value_t value;
47 } btgatt_read_params_t;
49 /** Parameters for GATT write operations */
52 btgatt_srvc_id_t srvc_id;
53 btgatt_gatt_id_t char_id;
54 btgatt_gatt_id_t descr_id;
56 } btgatt_write_params_t;
58 /** Attribute change notification parameters */
61 uint8_t value[BTGATT_MAX_ATTR_LEN];
66 } btgatt_notify_params_t;
74 uint16_t list_logic_type;
75 uint8_t filt_logic_type;
76 uint8_t rssi_high_thres;
77 uint8_t rssi_low_thres;
79 uint16_t found_timeout;
80 uint16_t lost_timeout;
81 uint8_t found_timeout_cnt;
82 uint16_t num_of_tracking_entries;
83 } btgatt_filt_param_setup_t;
94 } btgatt_test_params_t;
96 /* BT GATT client error codes */
99 BT_GATTC_COMMAND_SUCCESS = 0, /* 0 Command succeeded */
100 BT_GATTC_COMMAND_STARTED, /* 1 Command started OK. */
101 BT_GATTC_COMMAND_BUSY, /* 2 Device busy with another command */
102 BT_GATTC_COMMAND_STORED, /* 3 request is stored in control block */
103 BT_GATTC_NO_RESOURCES, /* 4 No resources to issue command */
104 BT_GATTC_MODE_UNSUPPORTED, /* 5 Request for 1 or more unsupported modes */
105 BT_GATTC_ILLEGAL_VALUE, /* 6 Illegal command /parameter value */
106 BT_GATTC_INCORRECT_STATE, /* 7 Device in wrong state for request */
107 BT_GATTC_UNKNOWN_ADDR, /* 8 Unknown remote BD address */
108 BT_GATTC_DEVICE_TIMEOUT, /* 9 Device timeout */
109 BT_GATTC_INVALID_CONTROLLER_OUTPUT,/* 10 An incorrect value was received from HCI */
110 BT_GATTC_SECURITY_ERROR, /* 11 Authorization or security failure or not authorized */
111 BT_GATTC_DELAYED_ENCRYPTION_CHECK, /*12 Delayed encryption check */
112 BT_GATTC_ERR_PROCESSING /* 12 Generic error */
115 /** BT-GATT Client callback structure. */
117 /** Callback invoked in response to register_client */
118 typedef void (*register_client_callback)(int status, int client_if,
119 bt_uuid_t *app_uuid);
121 /** Callback for scan results */
122 typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data);
124 /** GATT open callback invoked in response to open */
125 typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);
127 /** Callback invoked in response to close */
128 typedef void (*disconnect_callback)(int conn_id, int status,
129 int client_if, bt_bdaddr_t* bda);
132 * Invoked in response to search_service when the GATT service search
133 * has been completed.
135 typedef void (*search_complete_callback)(int conn_id, int status);
137 /** Callback invoked in response to [de]register_for_notification */
138 typedef void (*register_for_notification_callback)(int conn_id,
139 int registered, int status, uint16_t handle);
142 * Remote device notification callback, invoked when a remote device sends
143 * a notification or indication that a client has registered for.
145 typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);
147 /** Reports result of a GATT read operation */
148 typedef void (*read_characteristic_callback)(int conn_id, int status,
149 btgatt_read_params_t *p_data);
151 /** GATT write characteristic operation callback */
152 typedef void (*write_characteristic_callback)(int conn_id, int status, uint16_t handle);
154 /** GATT execute prepared write callback */
155 typedef void (*execute_write_callback)(int conn_id, int status);
157 /** Callback invoked in response to read_descriptor */
158 typedef void (*read_descriptor_callback)(int conn_id, int status,
159 btgatt_read_params_t *p_data);
161 /** Callback invoked in response to write_descriptor */
162 typedef void (*write_descriptor_callback)(int conn_id, int status, uint16_t handle);
164 /** Callback triggered in response to read_remote_rssi */
165 typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,
166 int rssi, int status);
169 * Callback indicating the status of a listen() operation
171 typedef void (*listen_callback)(int status, int server_if);
173 /** Callback invoked when the MTU for a given connection changes */
174 typedef void (*configure_mtu_callback)(int conn_id, int status, int mtu);
176 /** Callback invoked when a scan filter configuration command has completed */
177 typedef void (*scan_filter_cfg_callback)(int action, int client_if, int status, int filt_type,
180 /** Callback invoked when scan param has been added, cleared, or deleted */
181 typedef void (*scan_filter_param_callback)(int action, int client_if, int status,
184 /** Callback invoked when a scan filter configuration command has completed */
185 typedef void (*scan_filter_status_callback)(int enable, int client_if, int status);
187 /** Callback invoked when multi-adv enable operation has completed */
188 typedef void (*multi_adv_enable_callback)(int client_if, int status);
190 /** Callback invoked when multi-adv param update operation has completed */
191 typedef void (*multi_adv_update_callback)(int client_if, int status);
193 /** Callback invoked when multi-adv instance data set operation has completed */
194 typedef void (*multi_adv_data_callback)(int client_if, int status);
196 /** Callback invoked when multi-adv disable operation has completed */
197 typedef void (*multi_adv_disable_callback)(int client_if, int status);
200 * Callback notifying an application that a remote device connection is currently congested
201 * and cannot receive any more data. An application should avoid sending more data until
202 * a further callback is received indicating the congestion status has been cleared.
204 typedef void (*congestion_callback)(int conn_id, bool congested);
205 /** Callback invoked when batchscan storage config operation has completed */
206 typedef void (*batchscan_cfg_storage_callback)(int client_if, int status);
208 /** Callback invoked when batchscan enable / disable operation has completed */
209 typedef void (*batchscan_enable_disable_callback)(int action, int client_if, int status);
211 /** Callback invoked when batchscan reports are obtained */
212 typedef void (*batchscan_reports_callback)(int client_if, int status, int report_format,
213 int num_records, int data_len, uint8_t* rep_data);
215 /** Callback invoked when batchscan storage threshold limit is crossed */
216 typedef void (*batchscan_threshold_callback)(int client_if);
218 /** Track ADV VSE callback invoked when tracked device is found or lost */
219 typedef void (*track_adv_event_callback)(btgatt_track_adv_info_t *p_track_adv_info);
221 /** Callback invoked when scan parameter setup has completed */
222 typedef void (*scan_parameter_setup_completed_callback)(int client_if,
223 btgattc_error_t status);
225 /** GATT get database callback */
226 typedef void (*get_gatt_db_callback)(int conn_id, btgatt_db_element_t *db, int count);
228 /** GATT services between start_handle and end_handle were removed */
229 typedef void (*services_removed_callback)(int conn_id, uint16_t start_handle, uint16_t end_handle);
231 /** GATT services were added */
232 typedef void (*services_added_callback)(int conn_id, btgatt_db_element_t *added, int added_count);
235 register_client_callback register_client_cb;
236 scan_result_callback scan_result_cb;
237 connect_callback open_cb;
238 disconnect_callback close_cb;
239 search_complete_callback search_complete_cb;
240 register_for_notification_callback register_for_notification_cb;
241 notify_callback notify_cb;
242 read_characteristic_callback read_characteristic_cb;
243 write_characteristic_callback write_characteristic_cb;
244 read_descriptor_callback read_descriptor_cb;
245 write_descriptor_callback write_descriptor_cb;
246 execute_write_callback execute_write_cb;
247 read_remote_rssi_callback read_remote_rssi_cb;
248 listen_callback listen_cb;
249 configure_mtu_callback configure_mtu_cb;
250 scan_filter_cfg_callback scan_filter_cfg_cb;
251 scan_filter_param_callback scan_filter_param_cb;
252 scan_filter_status_callback scan_filter_status_cb;
253 multi_adv_enable_callback multi_adv_enable_cb;
254 multi_adv_update_callback multi_adv_update_cb;
255 multi_adv_data_callback multi_adv_data_cb;
256 multi_adv_disable_callback multi_adv_disable_cb;
257 congestion_callback congestion_cb;
258 batchscan_cfg_storage_callback batchscan_cfg_storage_cb;
259 batchscan_enable_disable_callback batchscan_enb_disable_cb;
260 batchscan_reports_callback batchscan_reports_cb;
261 batchscan_threshold_callback batchscan_threshold_cb;
262 track_adv_event_callback track_adv_event_cb;
263 scan_parameter_setup_completed_callback scan_parameter_setup_completed_cb;
264 get_gatt_db_callback get_gatt_db_cb;
265 services_removed_callback services_removed_cb;
266 services_added_callback services_added_cb;
267 } btgatt_client_callbacks_t;
269 /** Represents the standard BT-GATT client interface. */
272 /** Registers a GATT client application with the stack */
273 bt_status_t (*register_client)( bt_uuid_t *uuid );
275 /** Unregister a client application from the stack */
276 bt_status_t (*unregister_client)(int client_if );
278 /** Start or stop LE device scanning */
279 bt_status_t (*scan)( bool start );
281 /** Create a connection to a remote LE or dual-mode device */
282 bt_status_t (*connect)( int client_if, const bt_bdaddr_t *bd_addr,
283 bool is_direct, int transport );
285 /** Disconnect a remote device or cancel a pending connection */
286 bt_status_t (*disconnect)( int client_if, const bt_bdaddr_t *bd_addr,
289 /** Start or stop advertisements to listen for incoming connections */
290 bt_status_t (*listen)(int client_if, bool start);
292 /** Clear the attribute cache for a given device */
293 bt_status_t (*refresh)( int client_if, const bt_bdaddr_t *bd_addr );
296 * Enumerate all GATT services on a connected device.
297 * Optionally, the results can be filtered for a given UUID.
299 bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid );
301 /** Read a characteristic on a remote device */
302 bt_status_t (*read_characteristic)( int conn_id, uint16_t handle,
305 /** Write a remote characteristic */
306 bt_status_t (*write_characteristic)(int conn_id, uint16_t handle,
307 int write_type, int len, int auth_req,
310 /** Read the descriptor for a given characteristic */
311 bt_status_t (*read_descriptor)(int conn_id, uint16_t handle, int auth_req);
313 /** Write a remote descriptor for a given characteristic */
314 bt_status_t (*write_descriptor)( int conn_id, uint16_t handle,
315 int write_type, int len,
316 int auth_req, char* p_value);
318 /** Execute a prepared write operation */
319 bt_status_t (*execute_write)(int conn_id, int execute);
322 * Register to receive notifications or indications for a given
325 bt_status_t (*register_for_notification)( int client_if,
326 const bt_bdaddr_t *bd_addr, uint16_t handle);
328 /** Deregister a previous request for notifications/indications */
329 bt_status_t (*deregister_for_notification)( int client_if,
330 const bt_bdaddr_t *bd_addr, uint16_t handle);
332 /** Request RSSI for a given remote device */
333 bt_status_t (*read_remote_rssi)( int client_if, const bt_bdaddr_t *bd_addr);
335 /** Setup scan filter params */
336 bt_status_t (*scan_filter_param_setup)(btgatt_filt_param_setup_t filt_param);
339 /** Configure a scan filter condition */
340 bt_status_t (*scan_filter_add_remove)(int client_if, int action, int filt_type,
341 int filt_index, int company_id,
342 int company_id_mask, const bt_uuid_t *p_uuid,
343 const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,
344 char addr_type, int data_len, char* p_data, int mask_len,
347 /** Clear all scan filter conditions for specific filter index*/
348 bt_status_t (*scan_filter_clear)(int client_if, int filt_index);
350 /** Enable / disable scan filter feature*/
351 bt_status_t (*scan_filter_enable)(int client_if, bool enable);
353 /** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */
354 int (*get_device_type)( const bt_bdaddr_t *bd_addr );
356 /** Set the advertising data or scan response data */
357 bt_status_t (*set_adv_data)(int client_if, bool set_scan_rsp, bool include_name,
358 bool include_txpower, int min_interval, int max_interval, int appearance,
359 uint16_t manufacturer_len, char* manufacturer_data,
360 uint16_t service_data_len, char* service_data,
361 uint16_t service_uuid_len, char* service_uuid);
363 /** Configure the MTU for a given connection */
364 bt_status_t (*configure_mtu)(int conn_id, int mtu);
366 /** Request a connection parameter update */
367 bt_status_t (*conn_parameter_update)(const bt_bdaddr_t *bd_addr, int min_interval,
368 int max_interval, int latency, int timeout);
370 /** Sets the LE scan interval and window in units of N*0.625 msec */
371 bt_status_t (*set_scan_parameters)(int client_if, int scan_interval, int scan_window);
373 /* Setup the parameters as per spec, user manual specified values and enable multi ADV */
374 bt_status_t (*multi_adv_enable)(int client_if, int min_interval,int max_interval,int adv_type,
375 int chnl_map, int tx_power, int timeout_s);
377 /* Update the parameters as per spec, user manual specified values and restart multi ADV */
378 bt_status_t (*multi_adv_update)(int client_if, int min_interval,int max_interval,int adv_type,
379 int chnl_map, int tx_power, int timeout_s);
381 /* Setup the data for the specified instance */
382 bt_status_t (*multi_adv_set_inst_data)(int client_if, bool set_scan_rsp, bool include_name,
383 bool incl_txpower, int appearance, int manufacturer_len,
384 char* manufacturer_data, int service_data_len,
385 char* service_data, int service_uuid_len, char* service_uuid);
387 /* Disable the multi adv instance */
388 bt_status_t (*multi_adv_disable)(int client_if);
390 /* Configure the batchscan storage */
391 bt_status_t (*batchscan_cfg_storage)(int client_if, int batch_scan_full_max,
392 int batch_scan_trunc_max, int batch_scan_notify_threshold);
394 /* Enable batchscan */
395 bt_status_t (*batchscan_enb_batch_scan)(int client_if, int scan_mode,
396 int scan_interval, int scan_window, int addr_type, int discard_rule);
398 /* Disable batchscan */
399 bt_status_t (*batchscan_dis_batch_scan)(int client_if);
401 /* Read out batchscan reports */
402 bt_status_t (*batchscan_read_reports)(int client_if, int scan_mode);
404 /** Test mode interface */
405 bt_status_t (*test_command)( int command, btgatt_test_params_t* params);
407 /** Get gatt db content */
408 bt_status_t (*get_gatt_db)( int conn_id);
410 } btgatt_client_interface_t;
414 #endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */