1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 #ifndef __ATT_SERVER_H 38 #define __ATT_SERVER_H 39 40 #include <stdint.h> 41 #include "ble/att_db.h" 42 43 #if defined __cplusplus 44 extern "C" { 45 #endif 46 47 /* API_START */ 48 /* 49 * @brief setup ATT server 50 * @param db attribute database created by compile-gatt.ph 51 * @param read_callback, see att_db.h, can be NULL 52 * @param write_callback, see attl.h, can be NULL 53 */ 54 void att_server_init(uint8_t const * db, att_read_callback_t read_callback, att_write_callback_t write_callback); 55 56 /* 57 * @brief register packet handler for ATT server events: 58 * - ATT_EVENT_MTU_EXCHANGE_COMPLETE 59 * - ATT_EVENT_HANDLE_VALUE_INDICATION_COMPLETE 60 * @param handler 61 */ 62 void att_server_register_packet_handler(btstack_packet_handler_t handler); 63 64 /* 65 * @brief tests if a notification or indication can be send right now 66 * @return 1, if packet can be sent 67 */ 68 int att_server_can_send_packet_now(void); 69 70 /** 71 * @brief Request emission of ATT_EVENT_CAN_SEND_NOW as soon as possible 72 * @note ATT_EVENT_CAN_SEND_NOW might be emitted during call to this function 73 * so packet handler should be ready to handle it 74 * @param local_cid 75 */ 76 void att_server_request_can_send_now_event(void); 77 78 /* 79 * @brief notify client about attribute value change 80 * @param attribute_handle 81 * @param value 82 * @param value_len 83 * @return 0 if ok, error otherwise 84 */ 85 int att_server_notify(uint16_t attribute_handle, uint8_t *value, uint16_t value_len); 86 87 /* 88 * @brief indicate value change to client. client is supposed to reply with an indication_response 89 * @param attribute_handle 90 * @param value 91 * @param value_len 92 * @return 0 if ok, error otherwise 93 */ 94 int att_server_indicate(uint16_t attribute_handle, uint8_t *value, uint16_t value_len); 95 96 /* API_END */ 97 98 #if defined __cplusplus 99 } 100 #endif 101 102 #endif // __ATT_SERVER_H 103