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 #define __BTSTACK_FILE__ "avrcp_target.c" 39 40 #include <stdint.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 45 #include "btstack.h" 46 #include "classic/avrcp.h" 47 48 static avrcp_context_t avrcp_target_context; 49 50 void avrcp_target_create_sdp_record(uint8_t * service, uint32_t service_record_handle, uint8_t browsing, uint16_t supported_features, const char * service_name, const char * service_provider_name){ 51 avrcp_create_sdp_record(0, service, service_record_handle, browsing, supported_features, service_name, service_provider_name); 52 } 53 54 static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connection_t * connection, uint8_t *packet, uint16_t size){ 55 UNUSED(connection); 56 UNUSED(packet); 57 UNUSED(size); 58 } 59 60 static void avrcp_target_handle_can_send_now(avrcp_connection_t * connection){ 61 switch (connection->state){ 62 default: 63 return; 64 } 65 } 66 67 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 68 avrcp_connection_t * connection; 69 switch (packet_type) { 70 case L2CAP_DATA_PACKET: 71 connection = get_avrcp_connection_for_l2cap_signaling_cid(channel, &avrcp_target_context); 72 if (!connection) break; 73 avrcp_handle_l2cap_data_packet_for_signaling_connection(connection, packet, size); 74 break; 75 case HCI_EVENT_PACKET: 76 switch (hci_event_packet_get_type(packet)){ 77 case L2CAP_EVENT_CAN_SEND_NOW: 78 connection = get_avrcp_connection_for_l2cap_signaling_cid(channel, &avrcp_target_context); 79 if (!connection) break; 80 avrcp_target_handle_can_send_now(connection); 81 break; 82 default: 83 avrcp_packet_handler(packet_type, channel, packet, size, &avrcp_target_context); 84 break; 85 } 86 default: 87 break; 88 } 89 } 90 91 void avrcp_target_init(void){ 92 avrcp_target_context.role = AVRCP_TARGET; 93 avrcp_target_context.connections = NULL; 94 avrcp_target_context.packet_handler = avrcp_controller_packet_handler; 95 l2cap_register_service(&avrcp_controller_packet_handler, BLUETOOTH_PROTOCOL_AVCTP, 0xffff, LEVEL_0); 96 } 97 98 void avrcp_target_register_packet_handler(btstack_packet_handler_t callback){ 99 if (callback == NULL){ 100 log_error("avrcp_register_packet_handler called with NULL callback"); 101 return; 102 } 103 avrcp_target_context.avrcp_callback = callback; 104 } 105 106 uint8_t avrcp_target_connect(bd_addr_t bd_addr, uint16_t * avrcp_cid){ 107 return avrcp_connect(bd_addr, &avrcp_target_context, avrcp_cid); 108 } 109 110 uint8_t avrcp_target_disconnect(uint16_t avrcp_cid){ 111 avrcp_connection_t * connection = get_avrcp_connection_for_avrcp_cid(avrcp_cid, &avrcp_target_context); 112 if (!connection){ 113 log_error("avrcp_get_capabilities: could not find a connection."); 114 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 115 } 116 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED; 117 l2cap_disconnect(connection->l2cap_signaling_cid, 0); 118 return ERROR_CODE_SUCCESS; 119 } 120 121