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avrcp browsing: link avrcp browsing to control channel

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This commit is contained in:
Milanka Ringwald 2017-11-08 14:41:11 +01:00
parent 44c75d2c36
commit 247956ea1e
7 changed files with 166 additions and 342 deletions
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47
example/avrcp_browsing_client.c
View File

@ -134,10 +134,8 @@ int btstack_main(int argc, const char * argv[]){
// Register AVRCP for HCI events.
avrcp_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler);
// Initialize AVRCP Controller.
// Initialize AVRCP Browsing Controller, HCI events will be sent to the AVRCP Controller callback.
avrcp_browsing_controller_init();
// Register AVRCP for HCI events.
avrcp_browsing_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler);
// Initialize SDP.
sdp_init();
@ -180,13 +178,13 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
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);
printf("AVRCP Browsing Client: AVRCP Controller 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);
printf("AVRCP Browsing Client: AVRCP Controller connection failed: status 0x%02x\n", status);
browsing_cid = 0;
return;
}
@ -194,11 +192,11 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
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);
printf("AVRCP Browsing Client: AVRCP Controller Channel successfully opened: %s, avrcp_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));
printf("AVRCP Browsing Client: AVRCP Controller Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet));
browsing_cid = 0;
avrcp_browsing_connected = 0;
return;
@ -206,13 +204,13 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
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);
printf("AVRCP Browsing Client: AVRCP Browsing Controller 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);
printf("AVRCP Browsing Client: AVRCP Browsing Controller Connection failed: status 0x%02x\n", status);
browsing_cid = 0;
return;
}
@ -220,11 +218,11 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
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);
printf("AVRCP Browsing Client: AVRCP Browsing Controller 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));
printf("AVRCP Browsing Client: AVRCP Browsing Controller Channel released: browsing_cid 0x%02x\n", avrcp_subevent_browsing_connection_released_get_browsing_cid(packet));
browsing_cid = 0;
avrcp_browsing_connected = 0;
return;
@ -239,8 +237,10 @@ 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("a - AVRCP Controller create connection to addr %s\n", bd_addr_to_str(device_addr));
printf("c - AVRCP Browsing Controller create connection to addr %s\n", bd_addr_to_str(device_addr));
printf("C - AVRCP Browsing Controller disconnect\n");
printf("A - AVRCP Controller disconnect\n");
printf("---\n");
}
#endif
@ -251,20 +251,33 @@ static void stdin_process(char cmd){
switch (cmd){
case 'a':
printf(" - Create AVRCP connection for controll to addr %s.\n", bd_addr_to_str(device_addr));
printf(" - Create AVRCP connection for control to addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_controller_connect(device_addr, &avrcp_cid);
break;
case 'A':
if (avrcp_connected){
printf(" - AVRCP Controller disconnect from addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_controller_disconnect(avrcp_cid);
break;
}
printf("AVRCP Controller already disconnected\n");
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));
printf(" You must first create AVRCP connection for control 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);
if (avrcp_browsing_connected){
printf(" - AVRCP Browsing Controller disconnect from addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_browsing_controller_disconnect(browsing_cid);
break;
}
printf("AVRCP Browsing Controller already disconnected\n");
break;
case '\n':
case '\r':

31
src/classic/avrcp.c
View File

@ -91,7 +91,6 @@ static avrcp_context_t * sdp_query_context;
static uint8_t attribute_value[1000];
static const unsigned int attribute_value_buffer_size = sizeof(attribute_value);
static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static const char * avrcp_subunit_type_name[] = {
"MONITOR", "AUDIO", "PRINTER", "DISC", "TAPE_RECORDER_PLAYER", "TUNER",
@ -318,7 +317,7 @@ void avrcp_create_sdp_record(uint8_t controller, uint8_t * service, uint32_t ser
de_add_number(service, DE_UINT, DE_SIZE_16, supported_features);
}
static avrcp_connection_t * get_avrcp_connection_for_bd_addr(bd_addr_t addr, avrcp_context_t * context){
avrcp_connection_t * get_avrcp_connection_for_bd_addr(bd_addr_t addr, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
@ -357,7 +356,7 @@ void avrcp_request_can_send_now(avrcp_connection_t * connection, uint16_t l2cap_
}
static uint16_t avrcp_get_next_cid(void){
uint16_t avrcp_get_next_cid(void){
avrcp_cid_counter++;
if (avrcp_cid_counter == 0){
avrcp_cid_counter = 1;
@ -408,10 +407,11 @@ void avrcp_emit_connection_closed(btstack_packet_handler_t callback, uint16_t av
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
}
static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
avrcp_connection_t * connection = get_avrcp_connection_for_avrcp_cid(sdp_query_context->avrcp_cid, sdp_query_context);
if (!connection) return;
if (connection->state != AVCTP_CONNECTION_W4_SDP_QUERY_COMPLETE) return;
if (connection->state != AVCTP_CONNECTION_W4_SDP_QUERY_COMPLETE) return;
UNUSED(packet_type);
UNUSED(channel);
UNUSED(size);
@ -523,12 +523,12 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
case BLUETOOTH_PROTOCOL_L2CAP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_browsing_l2cap_psm);
de_element_get_uint16(des_iterator_get_element(&prot_it), &connection->browsing_l2cap_psm);
break;
case BLUETOOTH_PROTOCOL_AVCTP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_browsing_version);
de_element_get_uint16(des_iterator_get_element(&prot_it), &connection->browsing_version);
break;
default:
break;
@ -545,8 +545,9 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
}
break;
case SDP_EVENT_QUERY_COMPLETE:
case SDP_EVENT_QUERY_COMPLETE:{
status = sdp_event_query_complete_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
avrcp_emit_connection_established(sdp_query_context->avrcp_callback, connection->avrcp_cid, connection->remote_addr, status);
btstack_linked_list_remove(&sdp_query_context->connections, (btstack_linked_item_t*) connection);
@ -555,17 +556,18 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
break;
}
if (!sdp_query_context->parse_sdp_record || !sdp_query_context->avrcp_l2cap_psm){
if (!sdp_query_context->parse_sdp_record){
connection->state = AVCTP_CONNECTION_IDLE;
avrcp_emit_connection_established(sdp_query_context->avrcp_callback, connection->avrcp_cid, connection->remote_addr, SDP_SERVICE_NOT_FOUND);
btstack_linked_list_remove(&sdp_query_context->connections, (btstack_linked_item_t*) connection);
btstack_memory_avrcp_connection_free(connection);
break;
}
// log_info("AVRCP Control PSM 0x%02x, Browsing PSM 0x%02x", sdp_query_context->avrcp_l2cap_psm, sdp_query_context->avrcp_browsing_l2cap_psm);
// log_info("AVRCP Control PSM 0x%02x, Browsing PSM 0x%02x", sdp_query_context->avrcp_l2cap_psm, sdp_query_context->browsing_l2cap_psm);
connection->state = AVCTP_CONNECTION_W4_L2CAP_CONNECTED;
l2cap_create_channel(sdp_query_context->packet_handler, connection->remote_addr, sdp_query_context->avrcp_l2cap_psm, l2cap_max_mtu(), NULL);
break;
}
}
}
@ -646,29 +648,24 @@ void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet
uint8_t avrcp_connect(bd_addr_t bd_addr, avrcp_context_t * context, uint16_t * avrcp_cid){
avrcp_connection_t * connection = get_avrcp_connection_for_bd_addr(bd_addr, context);
printf("avrcp_connect 1 \n");
if (connection){
return ERROR_CODE_COMMAND_DISALLOWED;
}
connection = avrcp_create_connection(bd_addr, context);
printf("avrcp_connect 2 \n");
if (!connection){
log_error("avrcp: could not allocate connection struct.");
return BTSTACK_MEMORY_ALLOC_FAILED;
}
printf("avrcp_connect 3 \n");
if (!avrcp_cid) return L2CAP_LOCAL_CID_DOES_NOT_EXIST;
printf("avrcp_connect 4 \n");
*avrcp_cid = connection->avrcp_cid;
connection->state = AVCTP_CONNECTION_W4_SDP_QUERY_COMPLETE;
context->avrcp_l2cap_psm = 0;
context->avrcp_version = 0;
context->avrcp_cid = connection->avrcp_cid;
connection->browsing_l2cap_psm = 0;
sdp_query_context = context;
return sdp_client_query_uuid16(&avrcp_handle_sdp_client_query_result, bd_addr, BLUETOOTH_PROTOCOL_AVCTP);
}

46
src/classic/avrcp.h
View File

@ -273,12 +273,31 @@ typedef enum {
AVRCP_PARSER_IGNORE_ATTRIBUTE_VALUE
} avrcp_parser_state_t;
// BROWSING
typedef struct {
avctp_connection_state_t state;
uint8_t wait_to_send;
uint8_t transaction_label;
uint8_t * ertm_buffer;
uint32_t ertm_buffer_size;
l2cap_ertm_config_t ertm_config;
} avrcp_browsing_connection_t;
// BROWSING END
typedef struct {
btstack_linked_item_t item;
bd_addr_t remote_addr;
uint16_t l2cap_signaling_cid;
uint16_t avrcp_cid;
uint16_t l2cap_browsing_cid;
uint16_t avrcp_browsing_cid;
uint16_t browsing_l2cap_psm;
uint16_t browsing_version;
avrcp_browsing_connection_t * browsing_connection;
avctp_connection_state_t state;
uint8_t wait_to_send;
@ -375,33 +394,17 @@ typedef struct {
btstack_packet_handler_t avrcp_callback;
btstack_packet_handler_t packet_handler;
// btstack_packet_handler_t browsing_callback;
btstack_packet_handler_t browsing_packet_handler;
// SDP query
uint8_t parse_sdp_record;
uint32_t record_id;
uint16_t avrcp_cid;
uint16_t avrcp_l2cap_psm;
uint16_t avrcp_version;
uint16_t avrcp_browsing_l2cap_psm;
uint16_t avrcp_browsing_version;
} avrcp_context_t;
// BROWSING
typedef struct {
btstack_linked_item_t item;
bd_addr_t remote_addr;
uint16_t l2cap_browsing_cid;
uint16_t browsing_cid;
avctp_connection_state_t state;
uint8_t wait_to_send;
uint8_t transaction_label;
uint8_t * ertm_buffer;
uint32_t ertm_buffer_size;
l2cap_ertm_config_t ertm_config;
} avrcp_browsing_connection_t;
// BROWSING END
const char * avrcp_subunit2str(uint16_t index);
const char * avrcp_event2str(uint16_t index);
@ -422,7 +425,12 @@ void avrcp_emit_connection_closed(btstack_packet_handler_t callback, uint16_t av
uint8_t avrcp_cmd_opcode(uint8_t *packet, uint16_t size);
avrcp_connection_t * get_avrcp_connection_for_l2cap_signaling_cid(uint16_t l2cap_cid, avrcp_context_t * context);
avrcp_connection_t * get_avrcp_connection_for_avrcp_cid(uint16_t avrcp_cid, avrcp_context_t * context);
avrcp_connection_t * get_avrcp_connection_for_bd_addr(bd_addr_t addr, avrcp_context_t * context);
void avrcp_request_can_send_now(avrcp_connection_t * connection, uint16_t l2cap_cid);
uint16_t avrcp_get_next_cid(void);
// SDP query
void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
#if defined __cplusplus
}

370
src/classic/avrcp_browsing_controller.c
View File

@ -46,58 +46,43 @@
#include "classic/avrcp.h"
#include "classic/avrcp_browsing_controller.h"
static avrcp_context_t avrcp_browsing_controller_context;
static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static uint16_t avrcp_cid_counter = 0;
static avrcp_context_t * sdp_query_context;
static uint8_t attribute_value[1000];
static const unsigned int attribute_value_buffer_size = sizeof(attribute_value);
void avrcp_browser_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size, avrcp_context_t * context);
static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static uint16_t avrcp_get_next_cid(void){
avrcp_cid_counter++;
if (avrcp_cid_counter == 0){
avrcp_cid_counter = 1;
static avrcp_connection_t * get_avrcp_connection_for_browsing_cid(uint16_t browsing_cid, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
avrcp_connection_t * connection = (avrcp_connection_t *)btstack_linked_list_iterator_next(&it);
if (connection->avrcp_browsing_cid != browsing_cid) continue;
return connection;
}
return avrcp_cid_counter;
return NULL;
}
static avrcp_connection_t * get_avrcp_connection_for_browsing_l2cap_cid(uint16_t browsing_l2cap_cid, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
avrcp_connection_t * connection = (avrcp_connection_t *)btstack_linked_list_iterator_next(&it);
if (connection->l2cap_browsing_cid != browsing_l2cap_cid) continue;
return connection;
}
return NULL;
}
static avrcp_browsing_connection_t * get_avrcp_browsing_connection_for_l2cap_cid(uint16_t l2cap_cid, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
avrcp_browsing_connection_t * connection = (avrcp_browsing_connection_t *)btstack_linked_list_iterator_next(&it);
avrcp_connection_t * connection = (avrcp_connection_t *)btstack_linked_list_iterator_next(&it);
if (connection->l2cap_browsing_cid != l2cap_cid) continue;
return connection;
return connection->browsing_connection;
}
return NULL;
}
static avrcp_browsing_connection_t * get_avrcp_browsing_connection_for_cid(uint16_t avrcp_cid, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
avrcp_browsing_connection_t * connection = (avrcp_browsing_connection_t *)btstack_linked_list_iterator_next(&it);
if (connection->browsing_cid != avrcp_cid) continue;
return connection;
}
return NULL;
}
static avrcp_browsing_connection_t * get_avrcp_browsing_connection_for_bd_addr(bd_addr_t addr, avrcp_context_t * context){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, (btstack_linked_list_t *) &context->connections);
while (btstack_linked_list_iterator_has_next(&it)){
avrcp_browsing_connection_t * connection = (avrcp_browsing_connection_t *)btstack_linked_list_iterator_next(&it);
if (memcmp(addr, connection->remote_addr, 6) != 0) continue;
return connection;
}
return NULL;
}
static void avrcp_emit_browsing_connection_established(btstack_packet_handler_t callback, uint16_t avrcp_cid, bd_addr_t addr, uint8_t status){
static void avrcp_emit_browsing_connection_established(btstack_packet_handler_t callback, uint16_t browsing_cid, bd_addr_t addr, uint8_t status){
if (!callback) return;
uint8_t event[12];
int pos = 0;
@ -107,239 +92,62 @@ static void avrcp_emit_browsing_connection_established(btstack_packet_handler_t
event[pos++] = status;
reverse_bd_addr(addr,&event[pos]);
pos += 6;
little_endian_store_16(event, pos, avrcp_cid);
little_endian_store_16(event, pos, browsing_cid);
pos += 2;
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
}
static void avrcp_emit_browsing_connection_closed(btstack_packet_handler_t callback, uint16_t avrcp_cid){
static void avrcp_emit_browsing_connection_closed(btstack_packet_handler_t callback, uint16_t browsing_cid){
if (!callback) return;
uint8_t event[5];
int pos = 0;
event[pos++] = HCI_EVENT_AVRCP_META;
event[pos++] = sizeof(event) - 2;
event[pos++] = AVRCP_SUBEVENT_BROWSING_CONNECTION_RELEASED;
little_endian_store_16(event, pos, avrcp_cid);
little_endian_store_16(event, pos, browsing_cid);
pos += 2;
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
}
static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
avrcp_browsing_connection_t * connection = get_avrcp_browsing_connection_for_cid(sdp_query_context->avrcp_cid, sdp_query_context);
if (!connection) return;
if (connection->state != AVCTP_CONNECTION_W4_SDP_QUERY_COMPLETE) return;
UNUSED(packet_type);
UNUSED(channel);
UNUSED(size);
uint8_t status;
des_iterator_t des_list_it;
des_iterator_t prot_it;
// uint32_t avdtp_remote_uuid = 0;
switch (hci_event_packet_get_type(packet)){
case SDP_EVENT_QUERY_ATTRIBUTE_VALUE:
// Handle new SDP record
if (sdp_event_query_attribute_byte_get_record_id(packet) != sdp_query_context->record_id) {
sdp_query_context->record_id = sdp_event_query_attribute_byte_get_record_id(packet);
sdp_query_context->parse_sdp_record = 0;
printf("SDP Record: Nr: %d\n", sdp_query_context->record_id);
}
if (sdp_event_query_attribute_byte_get_attribute_length(packet) <= attribute_value_buffer_size) {
attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet);
if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) == sdp_event_query_attribute_byte_get_attribute_length(packet)) {
switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) {
case BLUETOOTH_ATTRIBUTE_SERVICE_CLASS_ID_LIST:
if (de_get_element_type(attribute_value) != DE_DES) break;
for (des_iterator_init(&des_list_it, attribute_value); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) {
uint8_t * element = des_iterator_get_element(&des_list_it);
if (de_get_element_type(element) != DE_UUID) continue;
uint32_t uuid = de_get_uuid32(element);
switch (uuid){
case BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL_TARGET:
if (sdp_query_context->role == AVRCP_CONTROLLER) {
sdp_query_context->parse_sdp_record = 1;
printf(" Controller \n");
break;
}
break;
case BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL:
case BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL_CONTROLLER:
if (sdp_query_context->role == AVRCP_TARGET) {
printf(" Target \n");
sdp_query_context->parse_sdp_record = 1;
break;
}
break;
default:
printf(" not found\n");
break;
}
}
break;
case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: {
if (!sdp_query_context->parse_sdp_record) break;
// log_info("SDP Attribute: 0x%04x", sdp_event_query_attribute_byte_get_attribute_id(packet));
for (des_iterator_init(&des_list_it, attribute_value); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) {
uint8_t *des_element;
uint8_t *element;
uint32_t uuid;
if (des_iterator_get_type(&des_list_it) != DE_DES) continue;
des_element = des_iterator_get_element(&des_list_it);
des_iterator_init(&prot_it, des_element);
element = des_iterator_get_element(&prot_it);
if (de_get_element_type(element) != DE_UUID) continue;
uuid = de_get_uuid32(element);
switch (uuid){
case BLUETOOTH_PROTOCOL_L2CAP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_l2cap_psm);
printf(" found signaling PSM: 0x%02x\n", sdp_query_context->avrcp_l2cap_psm);
break;
case BLUETOOTH_PROTOCOL_AVCTP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_version);
break;
default:
break;
}
}
}
break;
case BLUETOOTH_ATTRIBUTE_ADDITIONAL_PROTOCOL_DESCRIPTOR_LISTS: {
// log_info("SDP Attribute: 0x%04x", sdp_event_query_attribute_byte_get_attribute_id(packet));
if (!sdp_query_context->parse_sdp_record) break;
if (de_get_element_type(attribute_value) != DE_DES) break;
des_iterator_t des_list_0_it;
uint8_t *element_0;
des_iterator_init(&des_list_0_it, attribute_value);
element_0 = des_iterator_get_element(&des_list_0_it);
for (des_iterator_init(&des_list_it, element_0); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) {
uint8_t *des_element;
uint8_t *element;
uint32_t uuid;
if (des_iterator_get_type(&des_list_it) != DE_DES) continue;
des_element = des_iterator_get_element(&des_list_it);
des_iterator_init(&prot_it, des_element);
element = des_iterator_get_element(&prot_it);
if (de_get_element_type(element) != DE_UUID) continue;
uuid = de_get_uuid32(element);
switch (uuid){
case BLUETOOTH_PROTOCOL_L2CAP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_browsing_l2cap_psm);
printf(" found browsing PSM: 0x%02x\n", sdp_query_context->avrcp_browsing_l2cap_psm);
break;
case BLUETOOTH_PROTOCOL_AVCTP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context->avrcp_browsing_version);
break;
default:
break;
}
}
}
break;
default:
break;
}
}
} else {
log_error("SDP attribute value buffer size exceeded: available %d, required %d", attribute_value_buffer_size, sdp_event_query_attribute_byte_get_attribute_length(packet));
}
break;
case SDP_EVENT_QUERY_COMPLETE:
status = sdp_event_query_complete_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
avrcp_emit_browsing_connection_established(sdp_query_context->avrcp_callback, connection->browsing_cid, connection->remote_addr, status);
btstack_linked_list_remove(&sdp_query_context->connections, (btstack_linked_item_t*) connection);
btstack_memory_avrcp_browsing_connection_free(connection);
log_info("AVRCP: SDP query failed with status 0x%02x.", status);
break;
}
if (!sdp_query_context->parse_sdp_record || !sdp_query_context->avrcp_browsing_l2cap_psm){
connection->state = AVCTP_CONNECTION_IDLE;
avrcp_emit_browsing_connection_established(sdp_query_context->avrcp_callback, connection->browsing_cid, connection->remote_addr, SDP_SERVICE_NOT_FOUND);
btstack_linked_list_remove(&sdp_query_context->connections, (btstack_linked_item_t*) connection);
btstack_memory_avrcp_browsing_connection_free(connection);
break;
}
// log_info("AVRCP Control PSM 0x%02x, Browsing PSM 0x%02x", sdp_query_context->avrcp_l2cap_psm, sdp_query_context->avrcp_browsing_l2cap_psm);
connection->state = AVCTP_CONNECTION_W4_L2CAP_CONNECTED;
l2cap_create_ertm_channel(sdp_query_context->packet_handler, connection->remote_addr, sdp_query_context->avrcp_browsing_l2cap_psm,
&connection->ertm_config, connection->ertm_buffer, connection->ertm_buffer_size, NULL);
// l2cap_create_channel(sdp_query_context->packet_handler, connection->remote_addr, sdp_query_context->avrcp_l2cap_psm, l2cap_max_mtu(), NULL);
break;
}
}
static avrcp_browsing_connection_t * avrcp_browsing_create_connection(bd_addr_t remote_addr, avrcp_context_t * context){
avrcp_browsing_connection_t * connection = btstack_memory_avrcp_browsing_connection_get();
if (!connection){
log_error("avrcp: not enough memory to create connection");
return NULL;
}
static avrcp_browsing_connection_t * avrcp_browsing_create_connection(avrcp_connection_t * avrcp_connection){
avrcp_browsing_connection_t * connection = btstack_memory_avrcp_browsing_connection_get();
memset(connection, 0, sizeof(avrcp_browsing_connection_t));
connection->state = AVCTP_CONNECTION_IDLE;
connection->transaction_label = 0xFF;
connection->browsing_cid = avrcp_get_next_cid();
memcpy(connection->remote_addr, remote_addr, 6);
btstack_linked_list_add(&context->connections, (btstack_linked_item_t *) connection);
avrcp_connection->avrcp_browsing_cid = avrcp_get_next_cid();
avrcp_connection->browsing_connection = connection;
return connection;
}
static uint8_t avrcp_browsing_connect(bd_addr_t bd_addr, avrcp_context_t * context, uint8_t * ertm_buffer, uint32_t size, l2cap_ertm_config_t * ertm_config, uint16_t * avrcp_cid){
avrcp_browsing_connection_t * connection = get_avrcp_browsing_connection_for_bd_addr(bd_addr, context);
if (connection){
static uint8_t avrcp_browsing_connect(bd_addr_t remote_addr, avrcp_context_t * context, uint8_t * ertm_buffer, uint32_t size, l2cap_ertm_config_t * ertm_config, uint16_t * browsing_cid){
avrcp_connection_t * avrcp_connection = get_avrcp_connection_for_bd_addr(remote_addr, context);
if (!avrcp_connection){
log_error("avrcp: there is no previously established AVRCP controller connection.");
return ERROR_CODE_COMMAND_DISALLOWED;
}
connection = avrcp_browsing_create_connection(bd_addr, context);
avrcp_browsing_connection_t * connection = avrcp_connection->browsing_connection;
if (connection){
return ERROR_CODE_SUCCESS;
}
connection = avrcp_browsing_create_connection(avrcp_connection);
if (!connection){
printf("avrcp: could not allocate connection struct.");
return BTSTACK_MEMORY_ALLOC_FAILED;
}
// if (!avrcp_cid) return L2CAP_LOCAL_CID_DOES_NOT_EXIST;
if (!browsing_cid) return L2CAP_LOCAL_CID_DOES_NOT_EXIST;
*avrcp_cid = connection->browsing_cid;
connection->state = AVCTP_CONNECTION_W4_SDP_QUERY_COMPLETE;
*browsing_cid = avrcp_connection->avrcp_browsing_cid;
connection->ertm_buffer = ertm_buffer;
connection->ertm_buffer_size = size;
avrcp_connection->browsing_connection = connection;
memcpy(&connection->ertm_config, ertm_config, sizeof(l2cap_ertm_config_t));
context->parse_sdp_record = 0;
context->record_id = 0;
context->avrcp_l2cap_psm = 0;
context->avrcp_version = 0;
context->avrcp_browsing_l2cap_psm = 0;
context->avrcp_browsing_version = 0;
return l2cap_create_ertm_channel(avrcp_browsing_controller_packet_handler, remote_addr, avrcp_connection->browsing_l2cap_psm,
&connection->ertm_config, connection->ertm_buffer, connection->ertm_buffer_size, NULL);
context->avrcp_cid = connection->browsing_cid;
sdp_query_context = context;
printf(" start SDP query\n");
return sdp_client_query_uuid16(&avrcp_handle_sdp_client_query_result, bd_addr, BLUETOOTH_PROTOCOL_AVCTP);
}
void avrcp_browser_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size, avrcp_context_t * context){
@ -349,6 +157,7 @@ void avrcp_browser_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t
uint16_t local_cid;
uint8_t status;
avrcp_browsing_connection_t * connection = NULL;
avrcp_connection_t * avrcp_connection = NULL;
if (packet_type != HCI_EVENT_PACKET) return;
@ -359,15 +168,17 @@ void avrcp_browser_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t
case L2CAP_EVENT_INCOMING_CONNECTION:
l2cap_event_incoming_connection_get_address(packet, event_addr);
local_cid = l2cap_event_incoming_connection_get_local_cid(packet);
connection = avrcp_browsing_create_connection(event_addr, context);
if (!connection) {
log_error("Failed to alloc connection structure");
avrcp_connection = get_avrcp_connection_for_bd_addr(event_addr, context);
if (!avrcp_connection) {
log_error("No previously created AVRCP controller connections");
l2cap_decline_connection(local_cid);
break;
}
connection = avrcp_browsing_create_connection(avrcp_connection);
avrcp_connection->browsing_connection = connection;
avrcp_connection->l2cap_browsing_cid = local_cid;
connection->state = AVCTP_CONNECTION_W4_L2CAP_CONNECTED;
connection->l2cap_browsing_cid = local_cid;
log_info("L2CAP_EVENT_INCOMING_CONNECTION avrcp_cid 0x%02x, l2cap_signaling_cid 0x%02x", connection->browsing_cid, connection->l2cap_browsing_cid);
log_info("L2CAP_EVENT_INCOMING_CONNECTION browsing_cid 0x%02x, l2cap_signaling_cid 0x%02x", avrcp_connection->avrcp_browsing_cid, avrcp_connection->l2cap_browsing_cid);
// l2cap_accept_connection(local_cid);
printf("L2CAP Accepting incoming connection request in ERTM\n");
l2cap_accept_ertm_connection(local_cid, &connection->ertm_config, connection->ertm_buffer, connection->ertm_buffer_size);
@ -378,36 +189,46 @@ void avrcp_browser_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t
status = l2cap_event_channel_opened_get_status(packet);
local_cid = l2cap_event_channel_opened_get_local_cid(packet);
connection = get_avrcp_browsing_connection_for_bd_addr(event_addr, context);
if (!connection){
log_error("Failed to alloc AVRCP connection structure");
avrcp_emit_browsing_connection_established(context->avrcp_callback, connection->browsing_cid, event_addr, BTSTACK_MEMORY_ALLOC_FAILED);
avrcp_connection = get_avrcp_connection_for_bd_addr(event_addr, context);
if (!avrcp_connection){
log_error("Failed to find AVRCP connection for bd_addr %s", bd_addr_to_str(event_addr));
avrcp_emit_browsing_connection_established(context->avrcp_callback, local_cid, event_addr, L2CAP_LOCAL_CID_DOES_NOT_EXIST);
l2cap_disconnect(local_cid, 0); // reason isn't used
break;
}
if (status != ERROR_CODE_SUCCESS){
log_info("L2CAP connection to connection %s failed. status code 0x%02x", bd_addr_to_str(event_addr), status);
avrcp_emit_browsing_connection_established(context->avrcp_callback, connection->browsing_cid, event_addr, status);
btstack_linked_list_remove(&context->connections, (btstack_linked_item_t*) connection);
btstack_memory_avrcp_browsing_connection_free(connection);
connection = avrcp_connection->browsing_connection;
if (!connection){
log_error("Failed to alloc AVRCP connection structure");
avrcp_emit_browsing_connection_established(context->avrcp_callback, local_cid, event_addr, BTSTACK_MEMORY_ALLOC_FAILED);
l2cap_disconnect(local_cid, 0); // reason isn't used
break;
}
connection->l2cap_browsing_cid = local_cid;
log_info("L2CAP_EVENT_CHANNEL_OPENED avrcp_cid 0x%02x, l2cap_signaling_cid 0x%02x", connection->browsing_cid, connection->l2cap_browsing_cid);
if (status != ERROR_CODE_SUCCESS){
log_info("L2CAP connection to connection %s failed. status code 0x%02x", bd_addr_to_str(event_addr), status);
avrcp_emit_browsing_connection_established(context->avrcp_callback, avrcp_connection->avrcp_browsing_cid, event_addr, status);
btstack_memory_avrcp_browsing_connection_free(connection);
avrcp_connection->browsing_connection = NULL;
break;
}
avrcp_connection->l2cap_browsing_cid = local_cid;
log_info("L2CAP_EVENT_CHANNEL_OPENED browsing cid 0x%02x, l2cap cid 0x%02x", avrcp_connection->avrcp_browsing_cid, avrcp_connection->l2cap_browsing_cid);
connection->state = AVCTP_CONNECTION_OPENED;
avrcp_emit_browsing_connection_established(context->avrcp_callback, connection->browsing_cid, event_addr, ERROR_CODE_SUCCESS);
avrcp_emit_browsing_connection_established(context->avrcp_callback, avrcp_connection->avrcp_browsing_cid, event_addr, ERROR_CODE_SUCCESS);
break;
case L2CAP_EVENT_CHANNEL_CLOSED:
// data: event (8), len(8), channel (16)
local_cid = l2cap_event_channel_closed_get_local_cid(packet);
connection = get_avrcp_browsing_connection_for_l2cap_cid(local_cid, context);
if (connection){
avrcp_emit_browsing_connection_closed(context->avrcp_callback, connection->browsing_cid);
avrcp_connection = get_avrcp_connection_for_browsing_l2cap_cid(local_cid, context);
if (avrcp_connection && avrcp_connection->browsing_connection){
avrcp_emit_browsing_connection_closed(context->avrcp_callback, avrcp_connection->avrcp_browsing_cid);
// free connection
btstack_linked_list_remove(&context->connections, (btstack_linked_item_t*) connection);
btstack_memory_avrcp_browsing_connection_free(connection);
btstack_memory_avrcp_browsing_connection_free(avrcp_connection->browsing_connection);
avrcp_connection->browsing_connection = NULL;
break;
}
break;
@ -435,19 +256,19 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
switch (packet_type) {
case L2CAP_DATA_PACKET:
connection = get_avrcp_browsing_connection_for_l2cap_cid(channel, &avrcp_browsing_controller_context);
connection = get_avrcp_browsing_connection_for_l2cap_cid(channel, &avrcp_controller_context);
if (!connection) break;
// avrcp_handle_l2cap_data_packet_for_browsing_connection(connection, packet, size);
break;
case HCI_EVENT_PACKET:
switch (hci_event_packet_get_type(packet)){
case L2CAP_EVENT_CAN_SEND_NOW:
connection = get_avrcp_browsing_connection_for_l2cap_cid(channel, &avrcp_browsing_controller_context);
connection = get_avrcp_browsing_connection_for_l2cap_cid(channel, &avrcp_controller_context);
if (!connection) break;
// avrcp_browsing_controller_handle_can_send_now(connection);
break;
default:
avrcp_browser_packet_handler(packet_type, channel, packet, size, &avrcp_browsing_controller_context);
avrcp_browser_packet_handler(packet_type, channel, packet, size, &avrcp_controller_context);
break;
}
default:
@ -456,31 +277,22 @@ static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16
}
void avrcp_browsing_controller_init(void){
avrcp_browsing_controller_context.role = AVRCP_CONTROLLER;
avrcp_browsing_controller_context.connections = NULL;
avrcp_browsing_controller_context.packet_handler = avrcp_browsing_controller_packet_handler;
avrcp_controller_context.browsing_packet_handler = avrcp_browsing_controller_packet_handler;
l2cap_register_service(&avrcp_browsing_controller_packet_handler, BLUETOOTH_PROTOCOL_AVCTP, 0xffff, LEVEL_0);
}
void avrcp_browsing_controller_register_packet_handler(btstack_packet_handler_t callback){
if (callback == NULL){
log_error("avrcp_browsing_controller_register_packet_handler called with NULL callback");
return;
}
avrcp_browsing_controller_context.avrcp_callback = callback;
}
uint8_t avrcp_browsing_controller_connect(bd_addr_t bd_addr, uint8_t * ertm_buffer, uint32_t size, l2cap_ertm_config_t * ertm_config, uint16_t * avrcp_browsing_cid){
return avrcp_browsing_connect(bd_addr, &avrcp_browsing_controller_context, ertm_buffer, size, ertm_config, avrcp_browsing_cid);
return avrcp_browsing_connect(bd_addr, &avrcp_controller_context, ertm_buffer, size, ertm_config, avrcp_browsing_cid);
}
uint8_t avrcp_browsing_controller_disconnect(uint16_t avrcp_browsing_cid){
avrcp_browsing_connection_t * connection = get_avrcp_browsing_connection_for_cid(avrcp_browsing_cid, &avrcp_browsing_controller_context);
if (!connection){
avrcp_connection_t * avrcp_connection = get_avrcp_connection_for_browsing_cid(avrcp_browsing_cid, &avrcp_controller_context);
if (!avrcp_connection){
log_error("avrcp_browsing_controller_disconnect: could not find a connection.");
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
}
if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
l2cap_disconnect(connection->l2cap_browsing_cid, 0);
if (avrcp_connection->browsing_connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
l2cap_disconnect(avrcp_connection->l2cap_browsing_cid, 0);
return ERROR_CODE_SUCCESS;
}

6
src/classic/avrcp_browsing_controller.h
View File

@ -59,12 +59,6 @@ extern "C" {
*/
void avrcp_browsing_controller_init(void);
/**
* @brief Register callback for the AVRCP Sink client.
* @param callback
*/
void avrcp_browsing_controller_register_packet_handler(btstack_packet_handler_t callback);
/**
* @brief Connect to device with a Bluetooth address.
* @param bd_addr

2
src/classic/avrcp_controller.c
View File

@ -47,8 +47,6 @@
#include "classic/avrcp.h"
#include "classic/avrcp_controller.h"
static avrcp_context_t avrcp_controller_context;
void avrcp_controller_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){
avrcp_create_sdp_record(1, service, service_record_handle, browsing, supported_features, service_name, service_provider_name);
}

6
src/classic/avrcp_controller.h
View File

@ -55,7 +55,6 @@ extern "C" {
#endif
/* API_START */
/**
* @brief AVRCP Controller service record.
* @param service
@ -278,8 +277,11 @@ uint8_t avrcp_controller_set_shuffle_mode(uint16_t avrcp_cid, avrcp_shuffle_mode
* @returns status
*/
uint8_t avrcp_controller_set_repeat_mode(uint16_t avrcp_cid, avrcp_repeat_mode_t mode);
/* API_END */
// Only used by AVRCP controller and AVRCP browsing controller
avrcp_context_t avrcp_controller_context;
#if defined __cplusplus
}
#endif