1 /* 2 * Copyright (C) 2016 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 * avdtp_util.h 40 * 41 * Audio/Video Distribution Transport Protocol - Utils 42 * 43 */ 44 45 #ifndef AVDTP_UITL_H 46 #define AVDTP_UITL_H 47 48 #include <stdint.h> 49 #include "classic/avdtp.h" 50 51 #if defined __cplusplus 52 extern "C" { 53 #endif 54 55 static inline uint8_t avdtp_header(uint8_t tr_label, avdtp_packet_type_t packet_type, avdtp_message_type_t msg_type){ 56 return (tr_label<<4) | ((uint8_t)packet_type<<2) | (uint8_t)msg_type; 57 } 58 59 avdtp_message_type_t avdtp_get_signaling_packet_type(uint8_t * packet); 60 61 int avdtp_read_signaling_header(avdtp_signaling_packet_t * signaling_header, uint8_t * packet, uint16_t size); 62 63 uint16_t store_bit16(uint16_t bitmap, int position, uint8_t value); 64 int get_bit16(uint16_t bitmap, int position); 65 66 int avdtp_pack_service_capabilities(uint8_t * buffer, int size, avdtp_capabilities_t caps, avdtp_service_category_t category, uint8_t pack_all_capabilities); 67 uint16_t avdtp_unpack_service_capabilities(avdtp_connection_t * connection, avdtp_signal_identifier_t signal_identifier, avdtp_capabilities_t * caps, uint8_t * packet, uint16_t size); 68 69 void avdtp_prepare_capabilities(avdtp_signaling_packet_t * signaling_packet, uint8_t transaction_label, uint16_t registered_service_categories, avdtp_capabilities_t configuration, uint8_t identifier); 70 int avdtp_signaling_create_fragment(uint16_t cid, avdtp_signaling_packet_t * signaling_packet, uint8_t * out_buffer); 71 72 void avdtp_signaling_emit_connection_established(uint16_t avdtp_cid, bd_addr_t addr, uint8_t status); 73 74 void avdtp_signaling_emit_connection_released(uint16_t avdtp_cid); 75 76 void avdtp_signaling_emit_sep(uint16_t avdtp_cid, avdtp_sep_t sep); 77 void avdtp_signaling_emit_sep_done(uint16_t avdtp_cid); 78 79 void avdtp_signaling_emit_accept(uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier, 80 bool is_initiator); 81 void avdtp_signaling_emit_general_reject(uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier, 82 bool is_initiator); 83 void avdtp_signaling_emit_reject(uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier, 84 bool is_initiator); 85 86 void 87 avdtp_emit_capabilities(uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_capabilities_t *capabilities, 88 uint16_t registered_service_categories); 89 90 void 91 avdtp_signaling_emit_media_codec_other_reconfiguration(avdtp_stream_endpoint_t *stream_endpoint, uint16_t avdtp_cid, 92 uint8_t local_seid, uint8_t remote_seid, 93 adtvp_media_codec_capabilities_t media_codec); 94 void avdtp_signaling_emit_media_codec_other(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec, uint8_t reconfigure); 95 96 uint8_t avdtp_request_can_send_now_acceptor(avdtp_connection_t * connection, uint16_t l2cap_cid); 97 uint8_t avdtp_request_can_send_now_initiator(avdtp_connection_t * connection, uint16_t l2cap_cid); 98 99 void avdtp_reset_stream_endpoint(avdtp_stream_endpoint_t * stream_endpoint); 100 101 // uint16_t avdtp_cid(avdtp_stream_endpoint_t * stream_endpoint); 102 uint8_t avdtp_local_seid(avdtp_stream_endpoint_t * stream_endpoint); 103 uint8_t avdtp_remote_seid(avdtp_stream_endpoint_t * stream_endpoint); 104 const char * avdtp_si2str(uint16_t index); 105 106 void a2dp_streaming_emit_connection_established(btstack_packet_handler_t callback, uint16_t cid, bd_addr_t addr, uint8_t local_seid, uint8_t remote_seid, uint8_t status); 107 108 #if defined __cplusplus 109 } 110 #endif 111 112 #endif // AVDTP_UITL_H 113