/* * Copyright (C) 2016 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ #define __BTSTACK_FILE__ "avrcp_browsing_client.c" /* * avrcp_browsing_client.c */ // ***************************************************************************** /* EXAMPLE_START(avrcp_browsing_client): Browse media players and media information on a remote device. * * @text This example demonstrates how to use the AVRCP Controller Browsing service to * browse madia players and media information on a remote AVRCP Source device. * * @test To test with a remote device, e.g. a mobile phone, * pair from the remote device with the demo, then use the UI for browsing (tap * SPACE on the console to show the available AVRCP commands). * */ // ***************************************************************************** #include #include #include #include #include "btstack.h" #include "avrcp_browsing_controller.h" #ifdef HAVE_BTSTACK_STDIN #include "btstack_stdin.h" #endif #ifdef HAVE_BTSTACK_STDIN // mac 2011: static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; // mac 2013: // static const char * device_addr_string = "84:38:35:65:d1:15"; // iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39"; // phone 2013: static const char * device_addr_string = "D8:BB:2C:DF:F1:08"; static bd_addr_t device_addr; #endif static uint16_t avrcp_cid = 0; static uint8_t avrcp_connected = 0; static uint16_t browsing_cid = 0; static uint8_t avrcp_browsing_connected = 0; static uint8_t sdp_avrcp_browsing_controller_service_buffer[200]; static btstack_packet_callback_registration_t hci_event_callback_registration; static uint8_t ertm_buffer[10000]; static l2cap_ertm_config_t ertm_config = { 1, // ertm mandatory 2, // max transmit, some tests require > 1 2000, 12000, 144, // l2cap ertm mtu 4, 4, }; /* @section Main Application Setup * * @text The Listing MainConfiguration shows how to setup AVRCP Controller Browsing service. * To announce AVRCP Controller Browsing service, you need to create corresponding * SDP record and register it with the SDP service. * You'll also need to register several packet handlers: * - stdin_process callback - used to trigger AVRCP commands, such are get media players, playlists, albums, etc. Requires HAVE_BTSTACK_STDIN. * - avrcp_browsing_controller_packet_handler - used to receive answers for AVRCP commands. * */ /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); #ifdef HAVE_BTSTACK_STDIN static void stdin_process(char cmd); #endif #define BROWSING_ENABLED 1 int btstack_main(int argc, const char * argv[]); int btstack_main(int argc, const char * argv[]){ (void)argc; (void)argv; // Register for HCI events. hci_event_callback_registration.callback = &avrcp_browsing_controller_packet_handler; hci_add_event_handler(&hci_event_callback_registration); // Initialize L2CAP. l2cap_init(); // Initialize AVRCP Controller. avrcp_controller_init(); // Register AVRCP for HCI events. avrcp_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler); // Initialize AVRCP Controller. avrcp_browsing_controller_init(); // Register AVRCP for HCI events. avrcp_browsing_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler); // Initialize SDP. sdp_init(); // Create AVRCP service record and register it with SDP. memset(sdp_avrcp_browsing_controller_service_buffer, 0, sizeof(sdp_avrcp_browsing_controller_service_buffer)); avrcp_controller_create_sdp_record(sdp_avrcp_browsing_controller_service_buffer, 0x10001, BROWSING_ENABLED, 1, NULL, NULL); sdp_register_service(sdp_avrcp_browsing_controller_service_buffer); // Set local name with a template Bluetooth address, that will be automatically // replaced with a actual address once it is available, i.e. when BTstack boots // up and starts talking to a Bluetooth module. gap_set_local_name("AVRCP Browsing Client 00:00:00:00:00:00"); gap_discoverable_control(1); gap_set_class_of_device(0x200408); #ifdef HAVE_BTSTACK_STDIN // Parse human readable Bluetooth address. sscanf_bd_addr(device_addr_string, device_addr); btstack_stdin_setup(stdin_process); #endif printf("Starting BTstack ...\n"); hci_power_control(HCI_POWER_ON); return 0; } /* LISTING_END */ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ UNUSED(channel); UNUSED(size); if (packet_type != HCI_EVENT_PACKET) return; if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; uint16_t local_cid; uint8_t status = 0xFF; bd_addr_t adress; switch (packet[2]){ case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); if (browsing_cid != 0 && browsing_cid != local_cid) { printf("AVRCP Browsing Client: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", browsing_cid, local_cid); return; } status = avrcp_subevent_connection_established_get_status(packet); if (status != ERROR_CODE_SUCCESS){ printf("AVRCP Browsing Client: Connection failed: status 0x%02x\n", status); browsing_cid = 0; return; } avrcp_cid = local_cid; avrcp_connected = 1; avrcp_subevent_connection_established_get_bd_addr(packet, adress); printf("AVRCP Browsing Client: Channel successfully opened: %s, browsing_cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid); return; } case AVRCP_SUBEVENT_CONNECTION_RELEASED: printf("AVRCP Browsing Client: Channel released: browsing_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); browsing_cid = 0; avrcp_browsing_connected = 0; return; case AVRCP_SUBEVENT_BROWSING_CONNECTION_ESTABLISHED: { local_cid = avrcp_subevent_browsing_connection_established_get_browsing_cid(packet); if (browsing_cid != 0 && browsing_cid != local_cid) { printf("AVRCP Browsing Client: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", browsing_cid, local_cid); return; } status = avrcp_subevent_browsing_connection_established_get_status(packet); if (status != ERROR_CODE_SUCCESS){ printf("AVRCP Browsing Client: Connection failed: status 0x%02x\n", status); browsing_cid = 0; return; } browsing_cid = local_cid; avrcp_browsing_connected = 1; avrcp_subevent_browsing_connection_established_get_bd_addr(packet, adress); printf("AVRCP Browsing Client: Channel successfully opened: %s, browsing_cid 0x%02x\n", bd_addr_to_str(adress), browsing_cid); return; } case AVRCP_SUBEVENT_BROWSING_CONNECTION_RELEASED: printf("AVRCP Browsing Client: Channel released: browsing_cid 0x%02x\n", avrcp_subevent_browsing_connection_released_get_browsing_cid(packet)); browsing_cid = 0; avrcp_browsing_connected = 0; return; default: printf("AVRCP Browsing Client: event is not parsed\n"); break; } } #ifdef HAVE_BTSTACK_STDIN static void show_usage(void){ bd_addr_t iut_address; gap_local_bd_addr(iut_address); printf("\n--- Bluetooth AVRCP Controller Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); printf("c - AVRCP create connection for browsing to addr %s\n", bd_addr_to_str(device_addr)); printf("C - AVRCP disconnect\n"); printf("---\n"); } #endif #ifdef HAVE_BTSTACK_STDIN static void stdin_process(char cmd){ uint8_t status = ERROR_CODE_SUCCESS; switch (cmd){ case 'a': printf(" - Create AVRCP connection for controll to addr %s.\n", bd_addr_to_str(device_addr)); status = avrcp_controller_connect(device_addr, &avrcp_cid); break; case 'c': if (!avrcp_connected) { printf(" You must first create AVRCP connection for controll to addr %s.\n", bd_addr_to_str(device_addr)); break; } printf(" - Create AVRCP connection for browsing to addr %s.\n", bd_addr_to_str(device_addr)); status = avrcp_browsing_controller_connect(device_addr, ertm_buffer, sizeof(ertm_buffer), &ertm_config, &browsing_cid); break; case 'C': printf(" - AVRCP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); status = avrcp_browsing_controller_disconnect(browsing_cid); break; case '\n': case '\r': break; default: show_usage(); return; } if (status != ERROR_CODE_SUCCESS){ printf("Could not perform command, status 0x%2x\n", status); } } #endif /* EXAMPLE_END */