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a2dp: handle role in a2dp_config_process_avdtp_event_handler

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This commit is contained in:
Matthias Ringwald 2022-03-15 10:51:06 +01:00
parent 0b2fa0173a
commit aa3e64242c
1 changed files with 86 additions and 58 deletions
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140
src/classic/a2dp.c
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@ -405,8 +405,8 @@ uint8_t a2dp_config_process_config_init(avdtp_role_t role, avdtp_connection_t *c
#ifdef ENABLE_A2DP_SOURCE_EXPLICIT_CONFIG
// continue outgoing configuration
if (connection->a2dp_source_state == A2DP_DISCOVERY_DONE){
connection->a2dp_source_state = A2DP_SET_CONFIGURATION;
if (config_process->state == A2DP_DISCOVERY_DONE){
config_process->state = A2DP_SET_CONFIGURATION;
}
#endif
@ -415,6 +415,7 @@ uint8_t a2dp_config_process_config_init(avdtp_role_t role, avdtp_connection_t *c
void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet, uint16_t size) {
uint16_t cid;
avdtp_connection_t * connection;
a2dp_config_process_t * config_process;
uint8_t signal_identifier;
uint8_t status;
uint8_t local_seid;
@ -425,19 +426,20 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_connection_established_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
status = avdtp_subevent_signaling_connection_established_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
// notify about connection error only if we're initiator
if (connection->a2dp_source_config_process.outgoing_active){
if (config_process->outgoing_active){
log_info("A2DP source signaling connection failed status 0x%02x", status);
connection->a2dp_source_config_process.outgoing_active = false;
config_process->outgoing_active = false;
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED);
}
break;
}
log_info("A2DP source signaling connection established avdtp_cid 0x%02x", cid);
connection->a2dp_source_config_process.state = A2DP_CONNECTED;
config_process->state = A2DP_CONNECTED;
// notify app
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED);
@ -445,20 +447,27 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
// Windows 10 as Source starts SEP discovery after 1500 ms, but only if it did not get a Discover command
// If BTstack is configured for both roles, we need to avoid sending Discover command in Source Role for outgoing Sink connections
// For this, we trigger SDP query only if:
// a) this is an outgoing source connection
// b) this connection wasn't caused by an outgoing sink request
// For this, we trigger SEP discovery if:
// a) this is an outgoing connection
// b) this connection wasn't caused by an outgoing connection of the other role
if (role == AVDTP_ROLE_SOURCE){
if (connection->a2dp_source_config_process.outgoing_active || !connection->a2dp_sink_config_process.outgoing_active){
a2dp_config_process_ready_for_sep_discovery(AVDTP_ROLE_SOURCE, connection);
}
} else {
if (connection->a2dp_sink_config_process.outgoing_active || !connection->a2dp_source_config_process.outgoing_active){
a2dp_config_process_ready_for_sep_discovery(AVDTP_ROLE_SINK, connection);
}
}
break;
case AVDTP_SUBEVENT_SIGNALING_SEP_FOUND:
cid = avdtp_subevent_signaling_sep_found_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (connection->a2dp_source_config_process.state == A2DP_DISCOVER_SEPS) {
if (config_process->state == A2DP_DISCOVER_SEPS) {
avdtp_sep_t sep;
memset(&sep, 0, sizeof(avdtp_sep_t));
sep.seid = avdtp_subevent_signaling_sep_found_get_remote_seid(packet);;
@ -468,7 +477,8 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
log_info("A2DP Found sep: remote seid 0x%02x, in_use %d, media type %d, sep type %s, index %d",
sep.seid, sep.in_use, sep.media_type, sep.type == AVDTP_SOURCE ? "source" : "sink",
a2dp_config_process_sep_discovery_count);
if ((sep.type == AVDTP_SINK) && (sep.in_use == false)) {
avdtp_sep_type_t matching_type = (role == AVDTP_ROLE_SOURCE) ? AVDTP_SINK : AVDTP_SOURCE;
if ((sep.type == matching_type) && (sep.in_use == false)) {
a2dp_config_process_sep_discovery_seps[a2dp_config_process_sep_discovery_count++] = sep;
}
}
@ -478,24 +488,24 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_sep_dicovery_done_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (connection->a2dp_source_config_process.state != A2DP_DISCOVER_SEPS) break;
if (config_process->state != A2DP_DISCOVER_SEPS) break;
if (a2dp_config_process_sep_discovery_count > 0){
connection->a2dp_source_config_process.state = A2DP_GET_CAPABILITIES;
config_process->state = A2DP_GET_CAPABILITIES;
a2dp_config_process_sep_discovery_index = 0;
connection->a2dp_source_config_process.have_config = false;
config_process->have_config = false;
} else {
if (connection->a2dp_source_config_process.outgoing_active){
connection->a2dp_source_config_process.outgoing_active = false;
if (config_process->outgoing_active){
config_process->outgoing_active = false;
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
a2dp_emit_source_streaming_connection_failed(connection,
ERROR_CODE_CONNECTION_REJECTED_DUE_TO_NO_SUITABLE_CHANNEL_FOUND);
a2dp_emit_source_streaming_connection_failed(connection, ERROR_CODE_CONNECTION_REJECTED_DUE_TO_NO_SUITABLE_CHANNEL_FOUND);
}
// continue
connection->a2dp_source_config_process.state = A2DP_CONNECTED;
config_process->state = A2DP_CONNECTED;
a2dp_config_process_sep_discovery_cid = 0;
a2dp_config_process_discover_seps_with_next_waiting_connection();
}
@ -505,15 +515,19 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_media_codec_sbc_capability_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (connection->a2dp_source_config_process.state != A2DP_GET_CAPABILITIES) break;
// TODO: support sink role
if (role != AVDTP_ROLE_SOURCE) break;
if (config_process->state != A2DP_GET_CAPABILITIES) break;
// forward codec capability
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CAPABILITY);
#ifndef ENABLE_A2DP_SOURCE_EXPLICIT_CONFIG
// select SEP if none configured yet
if (connection->a2dp_source_config_process.have_config == false){
if (config_process->have_config == false){
// find SBC stream endpoint
avdtp_stream_endpoint_t * stream_endpoint = avdtp_get_source_stream_endpoint_for_media_codec(AVDTP_CODEC_SBC);
if (stream_endpoint != NULL){
@ -574,9 +588,10 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_delay_reporting_capability_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
log_info("received AVDTP_SUBEVENT_SIGNALING_DELAY_REPORTING_CAPABILITY, cid 0x%02x, state %d", cid, connection->a2dp_source_config_process.state);
if (connection->a2dp_source_config_process.state != A2DP_GET_CAPABILITIES) break;
if (config_process->state != A2DP_GET_CAPABILITIES) break;
// store delay reporting capability
a2dp_config_process_sep_discovery_seps[a2dp_config_process_sep_discovery_index].registered_service_categories |= 1 << AVDTP_DELAY_REPORTING;
@ -588,8 +603,12 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_capabilities_done_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (connection->a2dp_source_config_process.state != A2DP_GET_CAPABILITIES) break;
if (config_process->state != A2DP_GET_CAPABILITIES) break;
// TODO: support sink role
if (role != AVDTP_ROLE_SOURCE) break;
// forward capabilities done for endpoint
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_SIGNALING_CAPABILITIES_DONE);
@ -608,20 +627,20 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
a2dp_emit_source(event, sizeof(event));
// do we have a valid config?
if (connection->a2dp_source_config_process.have_config){
connection->a2dp_source_config_process.state = A2DP_SET_CONFIGURATION;
connection->a2dp_source_config_process.have_config = false;
if (config_process->have_config){
config_process->state = A2DP_SET_CONFIGURATION;
config_process->have_config = false;
break;
}
#ifdef ENABLE_A2DP_SOURCE_EXPLICIT_CONFIG
connection->a2dp_source_state = A2DP_DISCOVERY_DONE;
config_process->state = A2DP_DISCOVERY_DONE;
// TODO call a2dp_discover_seps_with_next_waiting_connection?
break;
#else
// we didn't find a suitable SBC stream endpoint, sorry.
if (connection->a2dp_source_config_process.outgoing_active){
connection->a2dp_source_config_process.outgoing_active = false;
if (config_process->outgoing_active){
config_process->outgoing_active = false;
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
a2dp_emit_source_streaming_connection_failed(connection,
@ -669,10 +688,14 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_streaming_connection_established_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (connection->a2dp_source_config_process.state != A2DP_W4_OPEN_STREAM_WITH_SEID) break;
// TODO: support sink role
if (role != AVDTP_ROLE_SOURCE) break;
connection->a2dp_source_config_process.outgoing_active = false;
if (config_process->state != A2DP_W4_OPEN_STREAM_WITH_SEID) break;
config_process->outgoing_active = false;
status = avdtp_subevent_streaming_connection_established_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
log_info("A2DP source streaming connection could not be established, avdtp_cid 0x%02x, status 0x%02x ---", cid, status);
@ -683,7 +706,7 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
log_info("A2DP source streaming connection established --- avdtp_cid 0x%02x, local seid 0x%02x, remote seid 0x%02x", cid,
avdtp_subevent_streaming_connection_established_get_local_seid(packet),
avdtp_subevent_streaming_connection_established_get_remote_seid(packet));
connection->a2dp_source_config_process.state = A2DP_STREAMING_OPENED;
config_process->state = A2DP_STREAMING_OPENED;
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_STREAM_ESTABLISHED);
break;
@ -691,6 +714,7 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_accept_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
// restart set config timer while remote is active for current cid
if (a2dp_config_process_set_config_timer_active &&
@ -703,51 +727,51 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
signal_identifier = avdtp_subevent_signaling_accept_get_signal_identifier(packet);
log_info("A2DP cmd %s accepted, global state %d, cid 0x%02x", avdtp_si2str(signal_identifier), connection->a2dp_source_config_process.state, cid);
log_info("A2DP cmd %s accepted, global state %d, cid 0x%02x", avdtp_si2str(signal_identifier), config_process->state, cid);
switch (connection->a2dp_source_config_process.state){
switch (config_process->state){
case A2DP_GET_CAPABILITIES:
remote_seid = a2dp_config_process_sep_discovery_seps[a2dp_config_process_sep_discovery_index].seid;
log_info("A2DP get capabilities for remote seid 0x%02x", remote_seid);
avdtp_source_get_all_capabilities(cid, remote_seid);
avdtp_get_all_capabilities(cid, remote_seid, role);
return;
case A2DP_SET_CONFIGURATION:
a2dp_config_process_set_config(AVDTP_ROLE_SOURCE, connection);
a2dp_config_process_set_config(role, connection);
return;
case A2DP_W2_OPEN_STREAM_WITH_SEID:
log_info("A2DP open stream ... local seid 0x%02x, active remote seid 0x%02x",
avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
connection->a2dp_source_config_process.local_stream_endpoint->remote_sep.seid);
connection->a2dp_source_config_process.state = A2DP_W4_OPEN_STREAM_WITH_SEID;
config_process->state = A2DP_W4_OPEN_STREAM_WITH_SEID;
avdtp_source_open_stream(cid,
avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
connection->a2dp_source_config_process.local_stream_endpoint->remote_sep.seid);
avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
config_process->local_stream_endpoint->remote_sep.seid);
break;
case A2DP_W2_RECONFIGURE_WITH_SEID:
log_info("A2DP reconfigured ... local seid 0x%02x, active remote seid 0x%02x",
avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
connection->a2dp_source_config_process.local_stream_endpoint->remote_sep.seid);
avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
config_process->local_stream_endpoint->remote_sep.seid);
a2dp_emit_source_stream_reconfigured(cid, avdtp_stream_endpoint_seid(
connection->a2dp_source_config_process.local_stream_endpoint), ERROR_CODE_SUCCESS);
connection->a2dp_source_config_process.state = A2DP_STREAMING_OPENED;
config_process->local_stream_endpoint), ERROR_CODE_SUCCESS);
config_process->state = A2DP_STREAMING_OPENED;
break;
case A2DP_STREAMING_OPENED:
switch (signal_identifier){
case AVDTP_SI_START:
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
A2DP_SUBEVENT_STREAM_STARTED);
break;
case AVDTP_SI_SUSPEND:
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
A2DP_SUBEVENT_STREAM_SUSPENDED);
break;
case AVDTP_SI_ABORT:
case AVDTP_SI_CLOSE:
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
a2dp_emit_source_stream_event(cid, avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
A2DP_SUBEVENT_STREAM_STOPPED);
break;
default:
@ -764,20 +788,21 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_reject_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (avdtp_subevent_signaling_reject_get_is_initiator(packet) == 0) break;
switch (connection->a2dp_source_config_process.state) {
switch (config_process->state) {
case A2DP_W2_RECONFIGURE_WITH_SEID:
log_info("A2DP reconfigure failed ... local seid 0x%02x, active remote seid 0x%02x",
avdtp_stream_endpoint_seid(connection->a2dp_source_config_process.local_stream_endpoint),
connection->a2dp_source_config_process.local_stream_endpoint->remote_sep.seid);
avdtp_stream_endpoint_seid(config_process->local_stream_endpoint),
config_process->local_stream_endpoint->remote_sep.seid);
a2dp_emit_source_stream_reconfigured(cid, avdtp_stream_endpoint_seid(
connection->a2dp_source_config_process.local_stream_endpoint), ERROR_CODE_UNSPECIFIED_ERROR);
connection->a2dp_source_config_process.state = A2DP_STREAMING_OPENED;
config_process->local_stream_endpoint), ERROR_CODE_UNSPECIFIED_ERROR);
config_process->state = A2DP_STREAMING_OPENED;
break;
default:
connection->a2dp_source_config_process.state = A2DP_CONNECTED;
config_process->state = A2DP_CONNECTED;
break;
}
@ -788,10 +813,11 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_general_reject_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
if (avdtp_subevent_signaling_general_reject_get_is_initiator(packet) == 0) break;
connection->a2dp_source_config_process.state = A2DP_CONNECTED;
config_process->state = A2DP_CONNECTED;
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_COMMAND_REJECTED);
break;
@ -799,8 +825,9 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_streaming_connection_released_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
connection->a2dp_source_config_process.state = A2DP_CONFIGURED;
config_process->state = A2DP_CONFIGURED;
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_STREAM_RELEASED);
break;
@ -808,14 +835,15 @@ void a2dp_config_process_avdtp_event_handler(avdtp_role_t role, uint8_t *packet,
cid = avdtp_subevent_signaling_connection_released_get_avdtp_cid(packet);
connection = avdtp_get_connection_for_avdtp_cid(cid);
btstack_assert(connection != NULL);
config_process = a2dp_config_process_for_role(role, connection);
// connect/release are passed on to app
if (a2dp_config_process_sep_discovery_cid == cid){
a2dp_config_process_timer_stop();
connection->a2dp_source_config_process.stream_endpoint_configured = false;
connection->a2dp_source_config_process.local_stream_endpoint = NULL;
config_process->stream_endpoint_configured = false;
config_process->local_stream_endpoint = NULL;
connection->a2dp_source_config_process.state = A2DP_IDLE;
config_process->state = A2DP_IDLE;
a2dp_config_process_sep_discovery_cid = 0;
}
a2dp_replace_subevent_id_and_emit_source(packet, size, A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED);