/*

* 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 BLUEKITCHEN

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*

* Please inquire about commercial licensing options at

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*/

#define BTSTACK_FILE__ "avrcp_browsing_client.c"

/*

* avrcp_browsing_client.c

*/

// *****************************************************************************

/* EXAMPLE_START(avrcp_browsing_client): AVRCP Browsing - Browse Media Players and Media Information

*

* @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.

*

* @text 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. If HAVE_BTSTACK_STDIN is set,

* press SPACE on the console to show the available AVDTP and AVRCP commands.

*

*/

// *****************************************************************************

#include <stdint.h>

#include <inttypes.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "btstack.h"

#ifdef HAVE_BTSTACK_STDIN

#include "btstack_stdin.h"

#endif

#ifndef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE

#error "AVRCP Browsing requires L2CAP ERTM, please add ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE to your btstack_config.h"

#endif

#define AVRCP_BROWSING_ENABLED

#define AVRCP_BROWSING_MAX_PLAYERS 10

#define AVRCP_BROWSING_MAX_FOLDERS 10

#define AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN 30

#define AVRCP_BROWSING_MAX_MEDIA_ITEMS 10

#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 = "B0:34:95:CB:97:C4";

// iPod

// static const char * device_addr_string = "B0:34:95:CB:97:C4";

// iPhone

static const char * device_addr_string = "6C:72:E7:10:22:EE";

static bd_addr_t device_addr;

#endif

typedef enum {

AVRCP_BROWSING_STATE_IDLE,

AVRCP_BROWSING_STATE_W4_GET_PLAYERS,

AVRCP_BROWSING_STATE_W4_SET_PLAYER,

AVRCP_BROWSING_STATE_READY

} avrcp_browsing_state_t;

typedef struct {

uint16_t charset;

uint8_t depth;

uint16_t name_len;

char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

} avrcp_browsing_root_folder_t;

typedef struct {

uint8_t uid[8];

uint16_t name_len;

char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

} avrcp_browsable_item_t;

typedef struct {

uint16_t player_id;

uint8_t major_player_type;

uint32_t player_sub_type;

uint8_t play_status;

uint8_t feature_bitmask[16];

uint16_t charset;

uint16_t name_len;

char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

} avrcp_browsable_media_player_item_t;

typedef struct {

uint32_t id;

uint16_t charset;

uint16_t value_len;

char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

} avrcp_browsable_media_element_item_attribute_t;

typedef struct {

uint8_t uid[8];

uint8_t media_type;

uint16_t charset;

uint16_t name_len;

char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

uint8_t num_attributes;

} avrcp_browsable_media_element_item_t;

static avrcp_browsing_state_t browsing_state = AVRCP_BROWSING_STATE_IDLE;

static uint16_t avrcp_cid = 0;

static bool avrcp_connected = false;

static uint16_t browsing_cid = 0;

static bool browsing_connected = false;

static uint8_t sdp_avrcp_browsing_controller_service_buffer[200];

static uint8_t sdp_avdtp_sink_service_buffer[150];

static uint16_t a2dp_cid = 0;

static uint8_t a2dp_local_seid = 0;

static uint8_t media_sbc_codec_capabilities[] = {

0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO,

0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS,

2, 53

};

static uint8_t media_sbc_codec_configuration[] = {

(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO,

(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS,

2, 53

};

static bool browsing_query_active = false;

// static avrcp_media_item_context_t media_item_context;

static int playable_folder_index = 0;

static uint16_t browsing_uid_counter = 0;

static uint8_t parent_folder_set = 0;

static uint8_t parent_folder_uid[8];

static char parent_folder_name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

static avrcp_browsable_item_t folders[AVRCP_BROWSING_MAX_FOLDERS];

static int folder_index = -1;

static avrcp_browsable_media_element_item_t media_element_items[AVRCP_BROWSING_MAX_MEDIA_ITEMS];

static int media_element_item_index = -1;

static avrcp_browsable_media_player_item_t media_player_items[AVRCP_BROWSING_MAX_MEDIA_ITEMS];

static int media_player_item_index = -1;

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,

1, // 16-bit FCS

};

static inline int next_index(int * index, int max_value){

if ((*index) < max_value){

(*index)++;

} else {

(*index) = 0;

}

return (*index);

}

static int next_folder_index(void){

return next_index(&folder_index, AVRCP_BROWSING_MAX_FOLDERS);

}

static int next_media_element_item_index(void){

return next_index(&media_element_item_index, AVRCP_BROWSING_MAX_MEDIA_ITEMS);

}

static int next_media_player_item_index(void){

return next_index(&media_player_item_index, AVRCP_BROWSING_MAX_MEDIA_ITEMS);

}

/* @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);

static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);

static void a2dp_sink_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

int btstack_main(int argc, const char * argv[]);

int btstack_main(int argc, const char * argv[]){

(void)argc;

(void)argv;

// Initialize L2CAP.

l2cap_init();

#ifdef ENABLE_BLE

// Initialize LE Security Manager. Needed for cross-transport key derivation

sm_init();

#endif

a2dp_sink_init();

a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler);

avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO,

AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities),

media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration));

if (!local_stream_endpoint){

printf("A2DP Sink: not enough memory to create local stream endpoint\n");

return 1;

}

a2dp_local_seid = avdtp_local_seid(local_stream_endpoint);

// Initialize AVRCP service.

avrcp_init();

// Initialize AVRCP Controller & Target Service.

avrcp_controller_init();

avrcp_target_init();

avrcp_register_packet_handler(&avrcp_packet_handler);

avrcp_controller_register_packet_handler(&avrcp_packet_handler);

avrcp_target_register_packet_handler(&avrcp_packet_handler);

// Initialize AVRCP Browsing Service.

avrcp_browsing_init();

avrcp_browsing_controller_init();

avrcp_browsing_target_init();

// Register for HCI events.

avrcp_browsing_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler);

avrcp_browsing_target_register_packet_handler(&avrcp_browsing_controller_packet_handler);

avrcp_browsing_register_packet_handler(&avrcp_browsing_controller_packet_handler);

// Initialize SDP.

sdp_init();

// setup AVDTP sink

memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer));

a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, sdp_create_service_record_handle(), AVDTP_SINK_FEATURE_MASK_HEADPHONE, NULL, NULL);

btstack_assert(de_get_len( sdp_avdtp_sink_service_buffer) <= sizeof(sdp_avdtp_sink_service_buffer));

sdp_register_service(sdp_avdtp_sink_service_buffer);

// Create AVRCP service record and register it with SDP.

memset(sdp_avrcp_browsing_controller_service_buffer, 0, sizeof(sdp_avrcp_browsing_controller_service_buffer));

uint16_t supported_features = AVRCP_FEATURE_MASK_CATEGORY_PLAYER_OR_RECORDER;

#ifdef AVRCP_BROWSING_ENABLED

supported_features |= AVRCP_FEATURE_MASK_BROWSING;

#endif

avrcp_controller_create_sdp_record(sdp_avrcp_browsing_controller_service_buffer, sdp_create_service_record_handle(), supported_features, NULL, NULL);

btstack_assert(de_get_len( sdp_avrcp_browsing_controller_service_buffer) <= sizeof(sdp_avrcp_browsing_controller_service_buffer));

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);

// Register for HCI events.

hci_event_callback_registration.callback = &avrcp_browsing_controller_packet_handler;

hci_add_event_handler(&hci_event_callback_registration);

#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_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){

UNUSED(channel);

UNUSED(size);

uint16_t local_cid;

uint8_t status = 0xFF;

bd_addr_t adress;

if (packet_type != HCI_EVENT_PACKET) return;

if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return;

switch (packet[2]){

case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: {

local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet);

status = avrcp_subevent_connection_established_get_status(packet);

if (status != ERROR_CODE_SUCCESS){

printf("AVRCP: Connection failed, status 0x%02x\n", status);

avrcp_cid = 0;

return;

}

avrcp_cid = local_cid;

avrcp_connected = true;

avrcp_subevent_connection_established_get_bd_addr(packet, adress);

printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid);

return;

}

case AVRCP_SUBEVENT_CONNECTION_RELEASED:

printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet));

avrcp_cid = 0;

avrcp_connected = false;

return;

default:

break;

}

}

static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){

UNUSED(channel);

UNUSED(size);

bd_addr_t address;

uint8_t status;

if (packet_type != HCI_EVENT_PACKET) return;

if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return;

switch (packet[2]){

case A2DP_SUBEVENT_STREAM_ESTABLISHED:

a2dp_subevent_stream_established_get_bd_addr(packet, address);

status = a2dp_subevent_stream_established_get_status(packet);

if (status != ERROR_CODE_SUCCESS){

printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status);

break;

}

a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet);

memcpy(device_addr, address, 6);

printf("A2DP Sink: Connection established, address %s, a2dp_cid 0x%02x\n", bd_addr_to_str(address), a2dp_cid);

break;

case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED:

printf("A2DP Sink: Connection released\n");

break;

default:

break;

}

}

static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){

UNUSED(channel);

UNUSED(size);

bd_addr_t address;

uint8_t status;

uint16_t pos = 0;

uint16_t local_cid;

// printf("avrcp_browsing_controller_packet_handler packet type 0x%02X, subevent 0x%02X\n", packet_type, packet[2]);

switch (packet_type) {

case HCI_EVENT_PACKET:

switch (packet[0]){

case HCI_EVENT_AVRCP_META:

switch (packet[2]){

case AVRCP_SUBEVENT_BROWSING_CONNECTION_ESTABLISHED: {

local_cid = avrcp_subevent_browsing_connection_established_get_browsing_cid(packet);

status = avrcp_subevent_browsing_connection_established_get_status(packet);

if (status != ERROR_CODE_SUCCESS){

printf("AVRCP: Connection failed, status 0x%02x\n", status);

browsing_cid = 0;

return;

}

avrcp_subevent_browsing_connection_established_get_bd_addr(packet, address);

browsing_cid = local_cid;

browsing_connected = true;

printf("AVRCP Browsing: Connection established, address %s, browsing_cid 0x%02x\n", bd_addr_to_str(address), browsing_cid);

return;

}

case AVRCP_SUBEVENT_BROWSING_CONNECTION_RELEASED:

printf("AVRCP: Connection released, cid 0x%02x\n", avrcp_subevent_browsing_connection_released_get_browsing_cid(packet));

browsing_cid = 0;

browsing_connected = false;

return;

case AVRCP_SUBEVENT_BROWSING_DONE:

browsing_query_active = 0;

browsing_uid_counter = 0;

if (avrcp_subevent_browsing_done_get_browsing_status(packet) != AVRCP_BROWSING_ERROR_CODE_SUCCESS){

printf("AVRCP Browsing query done with browsing status 0x%02x, bluetooth status 0x%02x.\n",

avrcp_subevent_browsing_done_get_browsing_status(packet),

avrcp_subevent_browsing_done_get_bluetooth_status(packet));

return;

}

browsing_uid_counter = avrcp_subevent_browsing_done_get_uid_counter(packet);

printf("DONE, browsing_uid_counter %d.\n", browsing_uid_counter);

switch (browsing_state){

case AVRCP_BROWSING_STATE_W4_GET_PLAYERS:

if (media_player_item_index < 0) {

printf("Get media players first\n");

break;

}

printf("Set browsed player\n");

browsing_state = AVRCP_BROWSING_STATE_W4_SET_PLAYER;

status = avrcp_browsing_controller_set_browsed_player(browsing_cid, media_player_items[0].player_id);

if (status != ERROR_CODE_SUCCESS){

printf("Could not set player, status 0x%02x\n", status);

status = AVRCP_BROWSING_STATE_W4_GET_PLAYERS;

break;

}

break;

case AVRCP_BROWSING_STATE_W4_SET_PLAYER:

browsing_state = AVRCP_BROWSING_STATE_READY;

break;

default:

break;

}

break;

default:

break;

}

default:

break;

}

break;

case AVRCP_BROWSING_DATA_PACKET:

browsing_query_active = 1;

avrcp_browsing_item_type_t data_type = (avrcp_browsing_item_type_t)packet[pos++];

switch (data_type){

case AVRCP_BROWSING_MEDIA_ROOT_FOLDER:{

uint16_t folder_name_length = size - pos;

char folder_name[AVRCP_MAX_FOLDER_NAME_SIZE];

memcpy(folder_name, &packet[pos], folder_name_length);

folder_name[folder_name_length] = 0;

printf("Found root folder: name %s \n", folder_name);

break;

}

case AVRCP_BROWSING_FOLDER_ITEM:{

int index = next_folder_index();

memcpy(folders[index].uid, packet+pos, 8);

uint32_t folder_uid_high = big_endian_read_32(packet, pos);

pos += 4;

uint32_t folder_uid_low = big_endian_read_32(packet, pos);

pos += 4;

avrcp_browsing_folder_type_t folder_type = packet[pos++];

uint8_t is_playable = packet[pos++];

uint16_t charset = big_endian_read_16(packet, pos);

pos += 2;

uint16_t displayable_name_length = big_endian_read_16(packet, pos);

pos += 2;

char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);

uint16_t value_len = btstack_min(displayable_name_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);

memcpy(value, packet+pos, value_len);

printf("Folder UID 0x%08" PRIx32 "%08" PRIx32 ", type 0x%02x, is_playable %d, charset 0x%02x, name %s\n",

folder_uid_high, folder_uid_low, folder_type, is_playable, charset, value);

if (is_playable){

playable_folder_index = index;

}

memcpy(folders[index].name, value, value_len);

folders[index].name_len = value_len;

break;

}

case AVRCP_BROWSING_MEDIA_PLAYER_ITEM:{

printf("Received media player item: ");

uint16_t player_id = big_endian_read_16(packet, pos);

pos += 2;

avrcp_browsing_media_player_major_type_t major_type = packet[pos++];

avrcp_browsing_media_player_subtype_t subtype = big_endian_read_32(packet, pos);

pos += 4;

status = packet[pos++];

uint8_t feature_bitmask[16];

memcpy(feature_bitmask, packet, 16);

pos += 16;

printf("player ID 0x%04x, major_type %d, subtype %d, status 0x%02x\n", player_id, major_type, subtype, status);

media_player_items[next_media_player_item_index()].player_id = player_id;

break;

}

case AVRCP_BROWSING_MEDIA_ELEMENT_ITEM:{

int index = next_media_element_item_index();

memcpy(media_element_items[index].uid, packet+pos, 8);

printf("Received media element item UID (index %d): ", index);

// uint32_t media_uid_high = big_endian_read_32(packet, pos);

pos += 4;

// uint32_t media_uid_low = big_endian_read_32(packet, pos+4);

pos += 4;

avrcp_browsing_media_type_t media_type = packet[pos++];

uint16_t charset = big_endian_read_16(packet, pos);

pos += 2;

uint16_t displayable_name_length = big_endian_read_16(packet, pos);

pos += 2;

char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];

memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);

uint16_t value_len = btstack_min(displayable_name_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);

memcpy(value, packet+pos, value_len);

memcpy(media_element_items[index].name, value, value_len);

pos += displayable_name_length;

// printf("Media UID: 0x%08" PRIx32 "%08" PRIx32 ", media_type 0x%02x, charset 0x%02x, actual len %d, name %s\n", media_uid_high, media_uid_low, media_type, charset, value_len, value);

printf_hexdump(media_element_items[index].uid, 8);

uint8_t num_attributes = packet[pos++];

printf(" Media type 0x%02x, charset 0x%02x, actual len %d, name %s, num attributes %d:\n", media_type, charset, value_len, value, num_attributes);

avrcp_media_item_context_t media_item_context;

for (avrcp_media_item_iterator_init(&media_item_context, size-pos, packet+pos); avrcp_media_item_iterator_has_more(&media_item_context); avrcp_media_item_iterator_next(&media_item_context)){

uint32_t attr_id = avrcp_media_item_iterator_get_attr_id(&media_item_context);

uint16_t attr_charset = avrcp_media_item_iterator_get_attr_charset(&media_item_context);

uint16_t attr_value_length = avrcp_media_item_iterator_get_attr_value_len(&media_item_context);

const uint8_t * attr_value = avrcp_media_item_iterator_get_attr_value(&media_item_context);

memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);

value_len = btstack_min(attr_value_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);

memcpy(value, attr_value, value_len);

printf(" - attr ID 0x%08" PRIx32 ", charset 0x%02x, actual len %d, name %s\n", attr_id, attr_charset, value_len, value);

}

break;

}

case AVRCP_BROWSING_MEDIA_ELEMENT_ITEM_ATTRIBUTE:{

uint8_t num_attributes = packet[pos++];

printf("Num media attributes %d:\n", num_attributes);

avrcp_media_item_context_t media_item_context;

for (avrcp_media_item_iterator_init(&media_item_context, size-pos, packet+pos); avrcp_media_item_iterator_has_more(&media_item_context); avrcp_media_item_iterator_next(&media_item_context)){

uint32_t attr_id = avrcp_media_item_iterator_get_attr_id(&media_item_context);

uint16_t attr_charset = avrcp_media_item_iterator_get_attr_charset(&media_item_context);

uint16_t attr_value_length = avrcp_media_item_iterator_get_attr_value_len(&media_item_context);

const uint8_t * attr_value = avrcp_media_item_iterator_get_attr_value(&media_item_context);

printf(" - attr ID 0x%08" PRIx32 ", charset 0x%02x, actual len %d, name %s\n", attr_id, attr_charset, attr_value_length, attr_value);

}

break;

}

default:

printf("AVRCP browsing: unknown browsable item type 0%02x\n", data_type);

break;

}

break;

default:

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 Browsing Service Test Console %s ---\n", bd_addr_to_str(iut_address));

printf("c - AVRCP Service create connection to addr %s\n", bd_addr_to_str(device_addr));

printf("C - AVRCP Service disconnect\n");

printf("e - AVRCP Browsing Service create connection to addr %s\n", bd_addr_to_str(device_addr));

printf("E - AVRCP Browsing Service disconnect\n");

printf("I - Set first found player as addressed player\n");

printf("O - Set first found player as browsed player\n");

printf("p - Get media players\n");

printf("Q - Browse folders\n");

printf("P - Go up one level\n");

printf("W - Go down one level\n");

printf("T - Browse media items\n");

printf("---\n");

}

#endif

#ifdef HAVE_BTSTACK_STDIN

static void stdin_process(char cmd){

uint8_t status = ERROR_CODE_SUCCESS;

if (cmd != 'a' && cmd != 'A' && cmd != 'c' && cmd != 'C'){

if (browsing_query_active){

printf("Query active, try later!\n");

return;

}

}

switch (cmd){

case 'b':

status = a2dp_sink_establish_stream(device_addr, &a2dp_cid);

printf(" - Create AVDTP connection to addr %s, and local seid %d, expected cid 0x%02x.\n", bd_addr_to_str(device_addr), a2dp_local_seid, a2dp_cid);

break;

case 'B':

printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr));

a2dp_sink_disconnect(a2dp_cid);

break;

case 'c':

printf(" - Connect to AVRCP Service on addr %s.\n", bd_addr_to_str(device_addr));

status = avrcp_connect(device_addr, &avrcp_cid);

break;

case 'C':

if (avrcp_connected){

printf(" - AVRCP Service disconnect from addr %s.\n", bd_addr_to_str(device_addr));

status = avrcp_disconnect(avrcp_cid);

break;

}

printf("AVRCP Service already disconnected\n");

break;

case 'e':

if (!avrcp_connected) {

printf(" You must first connect to AVRCP Service on addr %s.\n", bd_addr_to_str(device_addr));

break;

}

printf(" - Connect to AVRCP Browsing Service at addr %s.\n", bd_addr_to_str(device_addr));

status = avrcp_browsing_connect(device_addr, ertm_buffer, sizeof(ertm_buffer), &ertm_config, &browsing_cid);

break;

case 'E':

if (browsing_connected){

printf(" - AVRCP Browsing Service disconnect from addr %s.\n", bd_addr_to_str(device_addr));

status = avrcp_browsing_disconnect(browsing_cid);

break;

}

printf("AVRCP Browsing Service already disconnected\n");

break;

case '\n':

case '\r':

break;

default:

if (!browsing_connected){

show_usage();

break;

}

switch (cmd) {

case 'I':

if (media_player_item_index < 0) {

printf("AVRCP Browsing:Get media players first\n");

break;

}

printf("AVRCP Browsing:Set addressed player\n");

status = avrcp_controller_set_addressed_player(avrcp_cid, media_player_items[0].player_id);

break;

case 'O':

if (media_player_item_index < 0) {

printf("AVRCP Browsing:Get media players first\n");

break;

}

printf("Set browsed player\n");

status = avrcp_browsing_controller_set_browsed_player(browsing_cid, media_player_items[0].player_id);

break;

case 'p':

printf("AVRCP Browsing: get media players\n");

media_player_item_index = -1;

status = avrcp_browsing_controller_get_media_players(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);

break;

case 'Q':

printf("AVRCP Browsing: browse folders\n");

folder_index = -1;

status = avrcp_browsing_controller_browse_file_system(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);

break;

case 'P':

printf("AVRCP Browsing: browse media items\n");

avrcp_browsing_controller_browse_media(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);

break;

case 'W':

printf("AVRCP Browsing: go up one level\n");

status = avrcp_browsing_controller_go_up_one_level(browsing_cid);

folder_index = -1;

break;

case 'T':

if (folder_index < 0 && !parent_folder_set){

printf("AVRCP Browsing: no folders available\n");

break;

}

if (!parent_folder_set){

parent_folder_set = 1;

memcpy(parent_folder_name, folders[0].name, folders[0].name_len);

memcpy(parent_folder_uid, folders[0].uid, 8);

}

printf("AVRCP Browsing: go down one level of %s\n", (char *)parent_folder_name);

status = avrcp_browsing_controller_go_down_one_level(browsing_cid, parent_folder_uid);

folder_index = -1;

break;

default:

show_usage();

break;

}

break;

}

if (status != ERROR_CODE_SUCCESS){

printf("AVRCP Browsing: Could not perform command, status 0x%2x\n", status);

}

}

#endif

/* EXAMPLE_END */