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 38 39 /** 40 * Dispatcher for independent implementation of ATT client and server 41 */ 42 43 #ifndef ATT_DISPATCH_H 44 #define ATT_DISPATCH_H 45 46 #include "btstack_util.h" 47 48 #if defined __cplusplus 49 extern "C" { 50 #endif 51 52 /** 53 * @brief reset att dispatchter 54 * @param packet_hander for ATT client packets 55 */ 56 void att_dispatch_register_client(btstack_packet_handler_t packet_handler); 57 58 /** 59 * @brief reset att dispatchter 60 * @param packet_hander for ATT server packets 61 */ 62 void att_dispatch_register_server(btstack_packet_handler_t packet_handler); 63 64 /** 65 * @brief can send packet for client 66 * @param con_handle 67 */ 68 int att_dispatch_client_can_send_now(hci_con_handle_t con_handle); 69 70 /** 71 * @brief can send packet for server 72 * @param con_handle 73 */ 74 int att_dispatch_server_can_send_now(hci_con_handle_t con_handle); 75 76 /** 77 * @brief Request emission of L2CAP_EVENT_CAN_SEND_NOW as soon as possible for client 78 * @note L2CAP_EVENT_CAN_SEND_NOW might be emitted during call to this function 79 * so packet handler should be ready to handle it 80 * @param con_handle 81 */ 82 void att_dispatch_client_request_can_send_now_event(hci_con_handle_t con_handle); 83 84 /** 85 * @brief Request emission of L2CAP_EVENT_CAN_SEND_NOW as soon as possible for server 86 * @note L2CAP_EVENT_CAN_SEND_NOW might be emitted during call to this function 87 * so packet handler should be ready to handle it 88 * @param con_handle 89 */ 90 void att_dispatch_server_request_can_send_now_event(hci_con_handle_t con_handle); 91 92 /** 93 * @brief Used for propogating a updated MTU from att_server to gatt_client 94 * @param con_handle 95 * @param mtu 96 */ 97 void att_dispatch_server_mtu_exchanged(hci_con_handle_t con_handle, uint16_t new_mtu); 98 99 /** 100 * @brief Used for propogating a updated MTU from gatt_client to att_server 101 * @param con_handle 102 * @param mtu 103 */ 104 void att_dispatch_client_mtu_exchanged(hci_con_handle_t con_handle, uint16_t new_mtu); 105 106 #if defined __cplusplus 107 } 108 #endif 109 110 #endif // ATT_DISPATCH_H 111